Update DTO properties to support nullable types and add required validation attributes

Marechai.Data/Dtos/BasePhotoDto.cs

@@ -33,15 +33,15 @@ public class BasePhotoDto : BaseDto<Guid>
     [JsonPropertyName("aperture")]
     public double? Aperture { get; set; }
     [JsonPropertyName("author")]
-    public string Author { get; set; }
+    public string? Author { get; set; }
     [JsonPropertyName("camera_manufacturer")]
-    public string CameraManufacturer { get; set; }
+    public string? CameraManufacturer { get; set; }
     [JsonPropertyName("camera_model")]
-    public string CameraModel { get; set; }
+    public string? CameraModel { get; set; }
     [JsonPropertyName("colorspace")]
     public ColorSpace? ColorSpace { get; set; }
     [JsonPropertyName("comments")]
-    public string Comments { get; set; }
+    public string? Comments { get; set; }
     [JsonPropertyName("contrast")]
     public Contrast? Contrast { get; set; }
     [JsonPropertyName("creation_date")]
@@ -49,7 +49,7 @@ public class BasePhotoDto : BaseDto<Guid>
     [JsonPropertyName("digital_zoom")]
     public double? DigitalZoomRatio { get; set; }
     [JsonPropertyName("exif_version")]
-    public string ExifVersion { get; set; }
+    public string? ExifVersion { get; set; }
     [JsonPropertyName("exposure")]
     public double? ExposureTime { get; set; }
     [JsonPropertyName("exposure_method")]
@@ -69,7 +69,7 @@ public class BasePhotoDto : BaseDto<Guid>
     [JsonPropertyName("iso")]
     public ushort? IsoRating { get; set; }
     [JsonPropertyName("lens")]
-    public string Lens { get; set; }
+    public string? Lens { get; set; }
     [JsonPropertyName("light_source")]
     public LightSource? LightSource { get; set; }
     [JsonPropertyName("metering_mode")]
@@ -87,7 +87,7 @@ public class BasePhotoDto : BaseDto<Guid>
     [JsonPropertyName("sharpness")]
     public Sharpness? Sharpness { get; set; }
     [JsonPropertyName("software")]
-    public string SoftwareUsed { get; set; }
+    public string? SoftwareUsed { get; set; }
     [JsonPropertyName("subject_distance_range")]
     public SubjectDistanceRange? SubjectDistanceRange { get; set; }
     [JsonPropertyName("upload_date")]
@@ -97,9 +97,9 @@ public class BasePhotoDto : BaseDto<Guid>
     [JsonPropertyName("white_balance")]
     public WhiteBalance? WhiteBalance { get; set; }
     [JsonPropertyName("user_id")]
-    public string UserId { get; set; }
+    public string? UserId { get; set; }
     [JsonPropertyName("license_name")]
-    public string LicenseName { get; set; }
+    public string? LicenseName { get; set; }
     [JsonPropertyName("license_id")]
     public int LicenseId { get; set; }
     [JsonPropertyName("original_extension")]

Marechai.Data/Dtos/BaseScanDto.cs

@@ -31,25 +31,25 @@ namespace Marechai.Data.Dtos;
 public class BaseScanDto : BaseDto<Guid>
 {
     [JsonPropertyName("author")]
-    public string Author { get; set; }
+    public string? Author { get; set; }
     [JsonPropertyName("colorspace")]
     public ColorSpace? ColorSpace { get; set; }
     [JsonPropertyName("comments")]
-    public string Comments { get; set; }
+    public string? Comments { get; set; }
     [JsonPropertyName("creation_date")]
     public DateTime? CreationDate { get; set; }
     [JsonPropertyName("exif_version")]
-    public string ExifVersion { get; set; }
+    public string? ExifVersion { get; set; }
     [JsonPropertyName("horizontal_resolution")]
     public double? HorizontalResolution { get; set; }
     [JsonPropertyName("resolution_unit")]
     public ResolutionUnit? ResolutionUnit { get; set; }
     [JsonPropertyName("scanner_manufacturer")]
-    public string ScannerManufacturer { get; set; }
+    public string? ScannerManufacturer { get; set; }
     [JsonPropertyName("scanner_model")]
-    public string ScannerModel { get; set; }
+    public string? ScannerModel { get; set; }
     [JsonPropertyName("software")]
-    public string SoftwareUsed { get; set; }
+    public string? SoftwareUsed { get; set; }
     [JsonPropertyName("upload_date")]
     public DateTime UploadDate { get; set; }
     [JsonPropertyName("vertical_resolution")]
@@ -57,5 +57,5 @@ public class BaseScanDto : BaseDto<Guid>
     [JsonPropertyName("original_extension")]
     public string OriginalExtension { get; set; }
     [JsonPropertyName("user_id")]
-    public string UserId { get; set; }
+    public string? UserId { get; set; }
 }

Marechai.Data/Dtos/BookByMachineDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,11 +31,13 @@ namespace Marechai.Data.Dtos;
 public class BookByMachineDto : BaseDto<long>
 {
     [JsonPropertyName("book_id")]
+    [Required]
     public long BookId { get; set; }
     [JsonPropertyName("book")]
-    public string Book { get; set; }
+    public string? Book { get; set; }
     [JsonPropertyName("machine_id")]
+    [Required]
     public int MachineId { get; set; }
     [JsonPropertyName("machine")]
-    public string Machine { get; set; }
+    public string? Machine { get; set; }
 }

Marechai.Data/Dtos/BookByMachineFamilyDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,11 +31,13 @@ namespace Marechai.Data.Dtos;
 public class BookByMachineFamilyDto : BaseDto<long>
 {
     [JsonPropertyName("book_id")]
+    [Required]
     public long BookId { get; set; }
     [JsonPropertyName("book")]
-    public string Book { get; set; }
+    public string? Book { get; set; }
     [JsonPropertyName("machine_family_id")]
+    [Required]
     public int MachineFamilyId { get; set; }
     [JsonPropertyName("machine_family")]
-    public string MachineFamily { get; set; }
+    public string? MachineFamily { get; set; }
 }

Marechai.Data/Dtos/BookDto.cs

@@ -5,7 +5,7 @@ namespace Marechai.Data.Dtos;
 public class BookDto : DocumentBaseDto
 {
     [JsonPropertyName("isbn")]
-    public string Isbn { get; set; }
+    public string? Isbn { get; set; }
     [JsonPropertyName("pages")]
     public short? Pages { get; set; }
     [JsonPropertyName("edition")]

Marechai.Data/Dtos/BookScanDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,7 +31,8 @@ namespace Marechai.Data.Dtos;
 public class BookScanDto : DocumentScanBaseDto
 {
     [JsonPropertyName("book_id")]
+    [Required]
     public long BookId { get; set; }
     [JsonPropertyName("book")]
-    public string Book { get; set; }
+    public string? Book { get; set; }
 }

Marechai.Data/Dtos/CompanyByBookDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,13 +31,16 @@ namespace Marechai.Data.Dtos;
 public class CompanyByBookDto : BaseDto<long>
 {
     [JsonPropertyName("company_id")]
+    [Required]
     public int CompanyId { get; set; }
     [JsonPropertyName("book_id")]
+    [Required]
     public long BookId { get; set; }
     [JsonPropertyName("role_id")]
-    public string RoleId { get; set; }
+    [Required]
+    public required string RoleId { get; set; }
     [JsonPropertyName("company")]
-    public string Company { get; set; }
+    public string? Company { get; set; }
     [JsonPropertyName("role")]
-    public string Role { get; set; }
+    public string? Role { get; set; }
 }

Marechai.Data/Dtos/CompanyByDocumentDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,13 +31,16 @@ namespace Marechai.Data.Dtos;
 public class CompanyByDocumentDto : BaseDto<long>
 {
     [JsonPropertyName("company_id")]
+    [Required]
     public int CompanyId { get; set; }
     [JsonPropertyName("document_id")]
+    [Required]
     public long DocumentId { get; set; }
     [JsonPropertyName("role_id")]
-    public string RoleId { get; set; }
+    [Required]
+    public required string RoleId { get; set; }
     [JsonPropertyName("company")]
-    public string Company { get; set; }
+    public string? Company { get; set; }
     [JsonPropertyName("role")]
-    public string Role { get; set; }
+    public string? Role { get; set; }
 }

Marechai.Data/Dtos/CompanyByMagazineDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,13 +31,16 @@ namespace Marechai.Data.Dtos;
 public class CompanyByMagazineDto : BaseDto<long>
 {
     [JsonPropertyName("company_id")]
+    [Required]
     public int CompanyId { get; set; }
     [JsonPropertyName("magazine_id")]
+    [Required]
     public long MagazineId { get; set; }
     [JsonPropertyName("role_id")]
-    public string RoleId { get; set; }
+    [Required]
+    public required string RoleId { get; set; }
     [JsonPropertyName("company")]
-    public string Company { get; set; }
+    public string? Company { get; set; }
     [JsonPropertyName("role")]
-    public string Role { get; set; }
+    public string? Role { get; set; }
 }

Marechai.Data/Dtos/CompanyBySoftwareFamilyDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,13 +31,16 @@ namespace Marechai.Data.Dtos;
 public class CompanyBySoftwareFamilyDto : BaseDto<ulong>
 {
     [JsonPropertyName("company_id")]
+    [Required]
     public int CompanyId { get; set; }
     [JsonPropertyName("software_family_id")]
+    [Required]
     public ulong SoftwareFamilyId { get; set; }
     [JsonPropertyName("role_id")]
-    public string RoleId { get; set; }
+    [Required]
+    public required string RoleId { get; set; }
     [JsonPropertyName("company")]
-    public string Company { get; set; }
+    public string? Company { get; set; }
     [JsonPropertyName("role")]
-    public string Role { get; set; }
+    public string? Role { get; set; }
 }

Marechai.Data/Dtos/CompanyBySoftwareVariantDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,13 +31,16 @@ namespace Marechai.Data.Dtos;
 public class CompanyBySoftwareVariantDto : BaseDto<ulong>
 {
     [JsonPropertyName("company_id")]
+    [Required]
     public int CompanyId { get; set; }
     [JsonPropertyName("software_variant_id")]
+    [Required]
     public ulong SoftwareVariantId { get; set; }
     [JsonPropertyName("role_id")]
-    public string RoleId { get; set; }
+    [Required]
+    public required string RoleId { get; set; }
     [JsonPropertyName("company")]
-    public string Company { get; set; }
+    public string? Company { get; set; }
     [JsonPropertyName("role")]
-    public string Role { get; set; }
+    public string? Role { get; set; }
 }

Marechai.Data/Dtos/CompanyBySoftwareVersionDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,13 +31,16 @@ namespace Marechai.Data.Dtos;
 public class CompanyBySoftwareVersionDto : BaseDto<ulong>
 {
     [JsonPropertyName("company_id")]
+    [Required]
     public int CompanyId { get; set; }
     [JsonPropertyName("software_version_id")]
+    [Required]
     public ulong SoftwareVersionId { get; set; }
     [JsonPropertyName("role_id")]
-    public string RoleId { get; set; }
+    [Required]
+    public required string RoleId { get; set; }
     [JsonPropertyName("company")]
-    public string Company { get; set; }
+    public string? Company { get; set; }
     [JsonPropertyName("role")]
-    public string Role { get; set; }
+    public string? Role { get; set; }
 }

Marechai.Data/Dtos/CompanyDescriptionDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,9 +31,11 @@ namespace Marechai.Data.Dtos;
 public class CompanyDescriptionDto : BaseDto<int>
 {
     [JsonPropertyName("markdown")]
-    public string Markdown { get; set; }
+    [Required]
+    public required string Markdown { get; set; }
     [JsonPropertyName("html")]
-    public string Html { get; set; }
+    public string? Html { get; set; }
     [JsonPropertyName("company_id")]
+    [Required]
     public int CompanyId { get; set; }
 }

Marechai.Data/Dtos/CompanyDto.cs

@@ -33,27 +33,27 @@ public class CompanyDto : BaseDto<int>
 {
     [JsonPropertyName("name")]
     [Required]
-    public string Name { get; set; }
+    public required string Name { get; set; }
     [JsonPropertyName("founded")]
     public DateTime? Founded { get; set; }
     [JsonPropertyName("website")]
-    public string Website { get; set; }
+    public string? Website { get; set; }
     [JsonPropertyName("twitter")]
-    public string Twitter { get; set; }
+    public string? Twitter { get; set; }
     [JsonPropertyName("facebook")]
-    public string Facebook { get; set; }
+    public string? Facebook { get; set; }
     [JsonPropertyName("sold")]
     public DateTime? Sold { get; set; }
     [JsonPropertyName("sold_to_id")]
     public int? SoldToId { get; set; }
     [JsonPropertyName("address")]
-    public string Address { get; set; }
+    public string? Address { get; set; }
     [JsonPropertyName("city")]
-    public string City { get; set; }
+    public string? City { get; set; }
     [JsonPropertyName("province")]
-    public string Province { get; set; }
+    public string? Province { get; set; }
     [JsonPropertyName("postal_code")]
-    public string PostalCode { get; set; }
+    public string? PostalCode { get; set; }
     [JsonPropertyName("country_id")]
     public short? CountryId { get; set; }
     [JsonPropertyName("status")]
@@ -61,9 +61,9 @@ public class CompanyDto : BaseDto<int>
     [JsonPropertyName("last_logo")]
     public Guid? LastLogo { get; set; }
     [JsonPropertyName("sold_to")]
-    public string SoldTo { get; set; }
+    public string? SoldTo { get; set; }
     [JsonPropertyName("country")]
-    public string Country { get; set; }
+    public string? Country { get; set; }
     [JsonPropertyName("founded_day_is_unknown")]
     public bool FoundedDayIsUnknown { get; set; }
     [JsonPropertyName("founded_month_is_unknown")]
@@ -73,7 +73,7 @@ public class CompanyDto : BaseDto<int>
     [JsonPropertyName("sold_month_is_unknown")]
     public bool SoldMonthIsUnknown { get; set; }
     [JsonPropertyName("legal_name")]
-    public string LegalName { get; set; }
+    public string? LegalName { get; set; }
     [JsonIgnore]
     public string SoldView => Status != CompanyStatus.Active && Status != CompanyStatus.Unknown
                                   ? Sold?.ToShortDateString() ?? "Unknown"

Marechai.Data/Dtos/CurrencyInflationDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,9 +31,10 @@ namespace Marechai.Data.Dtos;
 public class CurrencyInflationDto : BaseDto<int>
 {
     [JsonPropertyName("code")]
-    public string CurrencyCode { get; set; }
+    [Required]
+    public required string CurrencyCode { get; set; }
     [JsonPropertyName("name")]
-    public string CurrencyName { get; set; }
+    public string? CurrencyName { get; set; }
     [JsonPropertyName("year")]
     public uint Year { get; set; }
     [JsonPropertyName("inflation")]

Marechai.Data/Dtos/CurrencyPeggingDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,13 +31,15 @@ namespace Marechai.Data.Dtos;
 public class CurrencyPeggingDto : BaseDto<int>
 {
     [JsonPropertyName("source_code")]
-    public string SourceCode { get; set; }
+    [Required]
+    public required string SourceCode { get; set; }
     [JsonPropertyName("destination_code")]
-    public string DestinationCode { get; set; }
+    [Required]
+    public required string DestinationCode { get; set; }
     [JsonPropertyName("source_name")]
-    public string SourceName { get; set; }
+    public string? SourceName { get; set; }
     [JsonPropertyName("destination_name")]
-    public string DestinationName { get; set; }
+    public string? DestinationName { get; set; }
     [JsonPropertyName("ratio")]
     public float Ratio { get; set; }
     [JsonPropertyName("start")]

Marechai.Data/Dtos/DocumentBaseDto.cs

@@ -1,3 +1,4 @@
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -5,15 +6,16 @@ namespace Marechai.Data.Dtos;
 public abstract class DocumentBaseDto : BaseDto<long>
 {
     [JsonPropertyName("title")]
-    public string Title { get; set; }
+    [Required]
+    public required string Title { get; set; }
     [JsonPropertyName("native_title")]
-    public string NativeTitle { get; set; }
+    public string? NativeTitle { get; set; }
     [JsonPropertyName("published")]
     public DateTime? Published { get; set; }
     [JsonPropertyName("country_id")]
     public short? CountryId { get; set; }
     [JsonPropertyName("country")]
-    public string Country { get; set; }
+    public string? Country { get; set; }
     [JsonPropertyName("synopsis")]
-    public string Synopsis { get; set; }
+    public string? Synopsis { get; set; }
 }

Marechai.Data/Dtos/DocumentByMachineDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,11 +31,13 @@ namespace Marechai.Data.Dtos;
 public class DocumentByMachineDto : BaseDto<long>
 {
     [JsonPropertyName("document_id")]
+    [Required]
     public long DocumentId { get; set; }
     [JsonPropertyName("document")]
-    public string Document { get; set; }
+    public string? Document { get; set; }
     [JsonPropertyName("machine_id")]
+    [Required]
     public int MachineId { get; set; }
     [JsonPropertyName("machine")]
-    public string Machine { get; set; }
+    public string? Machine { get; set; }
 }

Marechai.Data/Dtos/DocumentByMachineFamilyDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,11 +31,13 @@ namespace Marechai.Data.Dtos;
 public class DocumentByMachineFamilyDto : BaseDto<long>
 {
     [JsonPropertyName("document_id")]
+    [Required]
     public long DocumentId { get; set; }
     [JsonPropertyName("document")]
-    public string Document { get; set; }
+    public string? Document { get; set; }
     [JsonPropertyName("machine_family_id")]
+    [Required]
     public int MachineFamilyId { get; set; }
     [JsonPropertyName("machine_family")]
-    public string MachineFamily { get; set; }
+    public string? MachineFamily { get; set; }
 }

Marechai.Data/Dtos/DocumentCompanyDto.cs

@@ -31,10 +31,10 @@ namespace Marechai.Data.Dtos;
 public class DocumentCompanyDto : BaseDto<int>
 {
     [JsonPropertyName("name")]
-    public string Name { get; set; }
+    public string? Name { get; set; }
     [DisplayName("Linked company")]
     [JsonPropertyName("company")]
-    public string Company { get; set; }
+    public string? Company { get; set; }
     [JsonPropertyName("company_id")]
     public int? CompanyId { get; set; }
 }

Marechai.Data/Dtos/DocumentPersonDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,17 +31,18 @@ namespace Marechai.Data.Dtos;
 public class DocumentPersonDto : BaseDto<int>
 {
     [JsonPropertyName("name")]
-    public string Name { get; set; }
+    [Required]
+    public required string Name { get; set; }
     [JsonPropertyName("person")]
-    public string Person { get; set; }
+    public string? Person { get; set; }
     [JsonPropertyName("person_id")]
     public int? PersonId { get; set; }
     [JsonPropertyName("alias")]
-    public string Alias { get; set; }
+    public string? Alias { get; set; }
     [JsonPropertyName("surname")]
-    public string Surname { get; set; }
+    public string? Surname { get; set; }
     [JsonPropertyName("display_name")]
-    public string DisplayName { get; set; }
+    public string? DisplayName { get; set; }
 
     [JsonIgnore]
     public string FullName => DisplayName ?? Alias ?? $"{Name} {Surname}";

Marechai.Data/Dtos/DocumentRoleDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,7 +31,8 @@ namespace Marechai.Data.Dtos;
 public class DocumentRoleDto : BaseDto<string>
 {
     [JsonPropertyName("name")]
-    public string Name { get; set; }
+    [Required]
+    public required string Name { get; set; }
     [JsonPropertyName("enabled")]
     public bool Enabled { get; set; }
 }

Marechai.Data/Dtos/DocumentScanDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,7 +31,8 @@ namespace Marechai.Data.Dtos;
 public class DocumentScanDto : DocumentScanBaseDto
 {
     [JsonPropertyName("document_id")]
+    [Required]
     public long DocumentId { get; set; }
     [JsonPropertyName("document")]
-    public string Document { get; set; }
+    public string? Document { get; set; }
 }

Marechai.Data/Dtos/DumpDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,19 +31,20 @@ namespace Marechai.Data.Dtos;
 public class DumpDto : BaseDto<ulong>
 {
     [JsonPropertyName("dumper")]
-    public string Dumper { get; set; }
+    [Required]
+    public required string Dumper { get; set; }
     [JsonPropertyName("user_id")]
-    public string UserId { get; set; }
+    public string? UserId { get; set; }
     [JsonPropertyName("dumping_group")]
-    public string DumpingGroup { get; set; }
+    public string? DumpingGroup { get; set; }
     [JsonPropertyName("dump_date")]
     public DateTime? DumpDate { get; set; }
     [JsonPropertyName("username")]
-    public string UserName { get; set; }
+    public string? UserName { get; set; }
     [JsonPropertyName("media_id")]
     public ulong MediaId { get; set; }
     [JsonPropertyName("media_title")]
-    public string MediaTitle { get; set; }
+    public string? MediaTitle { get; set; }
     [JsonPropertyName("media_dump_id")]
     public ulong MediaDumpId { get; set; }
 }

Marechai.Data/Dtos/GpuByMachineDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,11 +31,13 @@ namespace Marechai.Data.Dtos;
 public class GpuByMachineDto : BaseDto<long>
 {
     [JsonPropertyName("gpu_id")]
+    [Required]
     public int GpuId { get; set; }
     [JsonPropertyName("machine_id")]
+    [Required]
     public int MachineId { get; set; }
     [JsonPropertyName("company")]
-    public string CompanyName { get; set; }
+    public string? CompanyName { get; set; }
     [JsonPropertyName("name")]
-    public string Name { get; set; }
+    public string? Name { get; set; }
 }

Marechai.Data/Dtos/GpuDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,19 +31,20 @@ namespace Marechai.Data.Dtos;
 public class GpuDto : BaseDto<int>
 {
     [JsonPropertyName("name")]
-    public string Name { get; set; }
+    [Required]
+    public required string Name { get; set; }
     [JsonPropertyName("company_id")]
     public int? CompanyId { get; set; }
     [JsonPropertyName("company")]
-    public string Company { get; set; }
+    public string? Company { get; set; }
     [JsonPropertyName("model_code")]
-    public string ModelCode { get; set; }
+    public string? ModelCode { get; set; }
     [JsonPropertyName("introduced")]
     public DateTime? Introduced { get; set; }
     [JsonPropertyName("package")]
-    public string Package { get; set; }
+    public string? Package { get; set; }
     [JsonPropertyName("process")]
-    public string Process { get; set; }
+    public string? Process { get; set; }
     [JsonPropertyName("process_nm")]
     public float? ProcessNm { get; set; }
     [JsonPropertyName("die_size")]

Marechai.Data/Dtos/InstructionSetExtensionByProcessorDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,11 +31,13 @@ namespace Marechai.Data.Dtos;
 public class InstructionSetExtensionByProcessorDto : BaseDto<int>
 {
     [JsonPropertyName("extensions")]
-    public string Extension { get; set; }
+    public string? Extension { get; set; }
     [JsonPropertyName("processor")]
-    public string Processor { get; set; }
+    public string? Processor { get; set; }
     [JsonPropertyName("processor_id")]
+    [Required]
     public int ProcessorId { get; set; }
     [JsonPropertyName("extension_id")]
+    [Required]
     public int ExtensionId { get; set; }
 }

Marechai.Data/Dtos/MachineDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 using Marechai.Database;
 
@@ -31,9 +32,10 @@ namespace Marechai.Data.Dtos;
 public class MachineDto : BaseDto<int>
 {
     [JsonPropertyName("name")]
-    public string Name { get; set; }
+    [Required]
+    public required string Name { get; set; }
     [JsonPropertyName("model")]
-    public string Model { get; set; }
+    public string? Model { get; set; }
     [JsonPropertyName("company_id")]
     public int CompanyId { get; set; }
     [JsonPropertyName("company_logo")]
@@ -43,18 +45,18 @@ public class MachineDto : BaseDto<int>
     [JsonPropertyName("family_id")]
     public int? FamilyId { get; set; }
     [JsonPropertyName("family_name")]
-    public string FamilyName { get;                     set; }
+    public string? FamilyName { get;                     set; }
-    public List<GpuDto>        Gpus              { get; set; }
+    public List<GpuDto>?        Gpus              { get; set; }
-    public List<MemoryDto>     Memory            { get; set; }
+    public List<MemoryDto>?     Memory            { get; set; }
-    public List<ProcessorDto>  Processors        { get; set; }
+    public List<ProcessorDto>?  Processors        { get; set; }
-    public List<SoundSynthDto> SoundSynthesizers { get; set; }
+    public List<SoundSynthDto>? SoundSynthesizers { get; set; }
-    public List<StorageDto>    Storage           { get; set; }
+    public List<StorageDto>?    Storage           { get; set; }
     [JsonPropertyName("company")]
-    public string Company { get; set; }
+    public string? Company { get; set; }
     [JsonPropertyName("type")]
     public MachineType Type { get; set; }
     [JsonPropertyName("family")]
-    public string Family { get; set; }
+    public string? Family { get; set; }
     [JsonIgnore]
     public string IntroducedView =>
         Introduced?.Year == 1000 ? "Prototype" : Introduced?.ToShortDateString() ?? "Unknown";

Marechai.Data/Dtos/MachineFamilyDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,9 +31,10 @@ namespace Marechai.Data.Dtos;
 public class MachineFamilyDto : BaseDto<int>
 {
     [JsonPropertyName("company")]
-    public string Company { get; set; }
+    public string? Company { get; set; }
     [JsonPropertyName("name")]
-    public string Name { get; set; }
+    [Required]
+    public required string Name { get; set; }
     [JsonPropertyName("company_id")]
     public int CompanyId { get; set; }
 }

Marechai.Data/Dtos/MachinePhotoDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,11 +31,12 @@ namespace Marechai.Data.Dtos;
 public class MachinePhotoDto : BasePhotoDto
 {
     [JsonPropertyName("source")]
-    public string Source { get; set; }
+    public string? Source { get; set; }
     [JsonPropertyName("machine_name")]
-    public string MachineName { get; set; }
+    public string? MachineName { get; set; }
     [JsonPropertyName("machine_company_name")]
-    public string MachineCompanyName { get; set; }
+    public string? MachineCompanyName { get; set; }
     [JsonPropertyName("machine_id")]
+    [Required]
     public int MachineId { get; set; }
 }

Marechai.Data/Dtos/MagazineByMachineDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,11 +31,13 @@ namespace Marechai.Data.Dtos;
 public class MagazineByMachineDto : BaseDto<long>
 {
     [JsonPropertyName("magazine_id")]
+    [Required]
     public long MagazineId { get; set; }
     [JsonPropertyName("magazine")]
-    public string Magazine { get; set; }
+    public string? Magazine { get; set; }
     [JsonPropertyName("machine_id")]
+    [Required]
     public int MachineId { get; set; }
     [JsonPropertyName("machine")]
-    public string Machine { get; set; }
+    public string? Machine { get; set; }
 }

Marechai.Data/Dtos/MagazineByMachineFamilyDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,11 +31,13 @@ namespace Marechai.Data.Dtos;
 public class MagazineByMachineFamilyDto : BaseDto<long>
 {
     [JsonPropertyName("magazine_id")]
+    [Required]
     public long MagazineId { get; set; }
     [JsonPropertyName("magazine")]
-    public string Magazine { get; set; }
+    public string? Magazine { get; set; }
     [JsonPropertyName("machine_family_id")]
+    [Required]
     public int MachineFamilyId { get; set; }
     [JsonPropertyName("machine_family")]
-    public string MachineFamily { get; set; }
+    public string? MachineFamily { get; set; }
 }

Marechai.Data/Dtos/MagazineDto.cs

@@ -30,7 +30,7 @@ namespace Marechai.Data.Dtos;
 public class MagazineDto : DocumentBaseDto
 {
     [JsonPropertyName("issn")]
-    public string Issn { get; set; }
+    public string? Issn { get; set; }
     [JsonPropertyName("first_publication")]
     public DateTime? FirstPublication { get; set; }
 }

Marechai.Data/Dtos/MagazineIssueDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,17 +31,18 @@ namespace Marechai.Data.Dtos;
 public class MagazineIssueDto : BaseDto<long>
 {
     [JsonPropertyName("magazine_id")]
+    [Required]
     public long MagazineId { get; set; }
     [JsonPropertyName("magazine_title")]
-    public string MagazineTitle { get; set; }
+    public string? MagazineTitle { get; set; }
     [JsonPropertyName("caption")]
-    public string Caption { get; set; }
+    public string? Caption { get; set; }
     [JsonPropertyName("native_caption")]
-    public string NativeCaption { get; set; }
+    public string? NativeCaption { get; set; }
     [JsonPropertyName("published")]
     public DateTime? Published { get; set; }
     [JsonPropertyName("product_code")]
-    public string ProductCode { get; set; }
+    public string? ProductCode { get; set; }
     [JsonPropertyName("pages")]
     public short? Pages { get; set; }
     [JsonPropertyName("issue_number")]

Marechai.Data/Dtos/MagazineScanDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,7 +31,8 @@ namespace Marechai.Data.Dtos;
 public class MagazineScanDto : DocumentScanBaseDto
 {
     [JsonPropertyName("magazine_id")]
+    [Required]
     public long MagazineId { get; set; }
     [JsonPropertyName("magazine")]
-    public string Magazine { get; set; }
+    public string? Magazine { get; set; }
 }

Marechai.Data/Dtos/MediaDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 using Aaru.CommonTypes;
 using Marechai.Database;
@@ -33,7 +34,8 @@ namespace Marechai.Data.Dtos;
 public class MediaDto : BaseDto<ulong>
 {
     [JsonPropertyName("title")]
-    public string Title { get; set; }
+    [Required]
+    public required string Title { get; set; }
     [JsonPropertyName("sequence")]
     public ushort? Sequence { get; set; }
     [JsonPropertyName("last_sequence")]
@@ -55,31 +57,31 @@ public class MediaDto : BaseDto<ulong>
     [JsonPropertyName("size")]
     public ulong Size { get; set; }
     [JsonPropertyName("copy_protection")]
-    public string CopyProtection { get; set; }
+    public string? CopyProtection { get; set; }
     [JsonPropertyName("part_number")]
-    public string PartNumber { get; set; }
+    public string? PartNumber { get; set; }
     [JsonPropertyName("serial_number")]
-    public string SerialNumber { get; set; }
+    public string? SerialNumber { get; set; }
     [JsonPropertyName("barcode")]
-    public string Barcode { get; set; }
+    public string? Barcode { get; set; }
     [JsonPropertyName("catalogue_number")]
-    public string CatalogueNumber { get; set; }
+    public string? CatalogueNumber { get; set; }
     [JsonPropertyName("manufacturer")]
-    public string Manufacturer { get; set; }
+    public string? Manufacturer { get; set; }
     [JsonPropertyName("model")]
-    public string Model { get; set; }
+    public string? Model { get; set; }
     [JsonPropertyName("revision")]
-    public string Revision { get; set; }
+    public string? Revision { get; set; }
     [JsonPropertyName("firmware")]
-    public string Firmware { get; set; }
+    public string? Firmware { get; set; }
     [JsonPropertyName("physical_block_size")]
     public int? PhysicalBlockSize { get; set; }
     [JsonPropertyName("logical_block_size")]
     public int? LogicalBlockSize { get; set; }
     [JsonPropertyName("block_sizes")]
-    public VariableBlockSize[] BlockSizes { get; set; }
+    public VariableBlockSize[]? BlockSizes { get; set; }
     [JsonPropertyName("storage_interface")]
     public StorageInterface? StorageInterface { get; set; }
     [JsonPropertyName("table_of_contents")]
-    public OpticalDiscTrack[] TableOfContents { get; set; }
+    public OpticalDiscTrack[]? TableOfContents { get; set; }
 }

Marechai.Data/Dtos/PersonByBookDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,21 +31,24 @@ namespace Marechai.Data.Dtos;
 public class PersonByBookDto : BaseDto<long>
 {
     [JsonPropertyName("person_id")]
+    [Required]
     public int PersonId { get; set; }
     [JsonPropertyName("book_id")]
+    [Required]
     public long BookId { get; set; }
     [JsonPropertyName("role_id")]
-    public string RoleId { get; set; }
+    [Required]
+    public required string RoleId { get; set; }
     [JsonPropertyName("role")]
-    public string Role { get; set; }
+    public string? Role { get; set; }
     [JsonPropertyName("name")]
-    public string Name { get; set; }
+    public string? Name { get; set; }
     [JsonPropertyName("alias")]
-    public string Alias { get; set; }
+    public string? Alias { get; set; }
     [JsonPropertyName("surname")]
-    public string Surname { get; set; }
+    public string? Surname { get; set; }
     [JsonPropertyName("display_name")]
-    public string DisplayName { get; set; }
+    public string? DisplayName { get; set; }
     [JsonIgnore]
     public string FullName => DisplayName ?? Alias ?? $"{Name} {Surname}";
 }

Marechai.Data/Dtos/PersonByDocumentDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,21 +31,24 @@ namespace Marechai.Data.Dtos;
 public class PersonByDocumentDto : BaseDto<long>
 {
     [JsonPropertyName("person_id")]
+    [Required]
     public int PersonId { get; set; }
     [JsonPropertyName("document_id")]
+    [Required]
     public long DocumentId { get; set; }
     [JsonPropertyName("role_id")]
-    public string RoleId { get; set; }
+    [Required]
+    public required string RoleId { get; set; }
     [JsonPropertyName("role")]
-    public string Role { get; set; }
+    public string? Role { get; set; }
     [JsonPropertyName("name")]
-    public string Name { get; set; }
+    public string? Name { get; set; }
     [JsonPropertyName("alias")]
-    public string Alias { get; set; }
+    public string? Alias { get; set; }
     [JsonPropertyName("surname")]
-    public string Surname { get; set; }
+    public string? Surname { get; set; }
     [JsonPropertyName("display_name")]
-    public string DisplayName { get; set; }
+    public string? DisplayName { get; set; }
     [JsonIgnore]
     public string FullName => DisplayName ?? Alias ?? $"{Name} {Surname}";
 }

Marechai.Data/Dtos/PersonByMagazineDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,21 +31,24 @@ namespace Marechai.Data.Dtos;
 public class PersonByMagazineDto : BaseDto<long>
 {
     [JsonPropertyName("person_id")]
+    [Required]
     public int PersonId { get; set; }
     [JsonPropertyName("magazine_id")]
+    [Required]
     public long MagazineId { get; set; }
     [JsonPropertyName("role_id")]
-    public string RoleId { get; set; }
+    [Required]
+    public required string RoleId { get; set; }
     [JsonPropertyName("role")]
-    public string Role { get; set; }
+    public string? Role { get; set; }
     [JsonPropertyName("name")]
-    public string Name { get; set; }
+    public string? Name { get; set; }
     [JsonPropertyName("alias")]
-    public string Alias { get; set; }
+    public string? Alias { get; set; }
     [JsonPropertyName("surname")]
-    public string Surname { get; set; }
+    public string? Surname { get; set; }
     [JsonPropertyName("display_name")]
-    public string DisplayName { get; set; }
+    public string? DisplayName { get; set; }
     [JsonIgnore]
     public string FullName => DisplayName ?? Alias ?? $"{Name} {Surname}";
 }

Marechai.Data/Dtos/PersonDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,27 +31,28 @@ namespace Marechai.Data.Dtos;
 public class PersonDto : BaseDto<int>
 {
     [JsonPropertyName("name")]
-    public string Name { get; set; }
+    [Required]
+    public required string Name { get; set; }
     [JsonPropertyName("surname")]
-    public string Surname { get; set; }
+    public string? Surname { get; set; }
     [JsonPropertyName("country")]
-    public string CountryOfBirth { get; set; }
+    public string? CountryOfBirth { get; set; }
     [JsonPropertyName("birthdate")]
     public DateTime BirthDate { get; set; }
     [JsonPropertyName("death_date")]
     public DateTime? DeathDate { get; set; }
     [JsonPropertyName("webpage")]
-    public string Webpage { get; set; }
+    public string? Webpage { get; set; }
     [JsonPropertyName("twitter")]
-    public string Twitter { get; set; }
+    public string? Twitter { get; set; }
     [JsonPropertyName("facebook")]
-    public string Facebook { get; set; }
+    public string? Facebook { get; set; }
     [JsonPropertyName("photo")]
-    public Guid Photo { get; set; }
+    public Guid? Photo { get; set; }
     [JsonPropertyName("alias")]
-    public string Alias { get; set; }
+    public string? Alias { get; set; }
     [JsonPropertyName("display_name")]
-    public string DisplayName { get; set; }
+    public string? DisplayName { get; set; }
     [JsonPropertyName("country_id")]
     public short? CountryOfBirthId { get; set; }
     [JsonIgnore]

Marechai.Data/Dtos/ProcessorByMachineDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,13 +31,15 @@ namespace Marechai.Data.Dtos;
 public class ProcessorByMachineDto : BaseDto<long>
 {
     [JsonPropertyName("processor_id")]
+    [Required]
     public int ProcessorId { get; set; }
     [JsonPropertyName("machine_id")]
+    [Required]
     public int MachineId { get; set; }
     [JsonPropertyName("company")]
-    public string CompanyName { get; set; }
+    public string? CompanyName { get; set; }
     [JsonPropertyName("name")]
-    public string Name { get; set; }
+    public string? Name { get; set; }
     [JsonPropertyName("speed")]
     public float? Speed { get; set; }
 }

Marechai.Data/Dtos/ProcessorDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,17 +31,18 @@ namespace Marechai.Data.Dtos;
 public class ProcessorDto : BaseDto<int>
 {
     [JsonPropertyName("name")]
-    public string Name { get; set; }
+    [Required]
+    public required string Name { get; set; }
     [JsonPropertyName("company")]
-    public string CompanyName { get; set; }
+    public string? CompanyName { get; set; }
     [JsonPropertyName("model_code")]
-    public string ModelCode { get; set; }
+    public string? ModelCode { get; set; }
     [JsonPropertyName("introduced")]
     public DateTime? Introduced { get; set; }
     [JsonPropertyName("speed")]
     public double? Speed { get; set; }
     [JsonPropertyName("package")]
-    public string Package { get; set; }
+    public string? Package { get; set; }
     [JsonPropertyName("gprs")]
     public int? Gprs { get; set; }
     [JsonPropertyName("gpr_size")]
@@ -54,7 +56,7 @@ public class ProcessorDto : BaseDto<int>
     [JsonPropertyName("threads_per_core")]
     public int? ThreadsPerCore { get; set; }
     [JsonPropertyName("process")]
-    public string Process { get; set; }
+    public string? Process { get; set; }
     [JsonPropertyName("process_nm")]
     public float? ProcessNm { get; set; }
     [JsonPropertyName("die_size")]
@@ -78,9 +80,9 @@ public class ProcessorDto : BaseDto<int>
     [JsonPropertyName("l3")]
     public float? L3 { get; set; }
     [JsonPropertyName("instruction_set")]
-    public string InstructionSet { get; set; }
+    public string? InstructionSet { get; set; }
     [JsonPropertyName("instruction_set_extensions")]
-    public List<string> InstructionSetExtensions { get; set; }
+    public List<string>? InstructionSetExtensions { get; set; }
     [JsonPropertyName("company_id")]
     public int? CompanyId { get; set; }
     [JsonPropertyName("instruction_set_id")]

Marechai.Data/Dtos/ResolutionByGpuDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,9 +31,11 @@ namespace Marechai.Data.Dtos;
 public class ResolutionByGpuDto : BaseDto<long>
 {
     [JsonPropertyName("resolution_id")]
+    [Required]
     public int ResolutionId { get; set; }
     [JsonPropertyName("gpu_id")]
+    [Required]
     public int GpuId { get; set; }
     [JsonPropertyName("resolution")]
-    public ResolutionDto Resolution { get; set; }
+    public ResolutionDto? Resolution { get; set; }
 }

Marechai.Data/Dtos/ResolutionByScreenDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,9 +31,11 @@ namespace Marechai.Data.Dtos;
 public class ResolutionByScreenDto : BaseDto<long>
 {
     [JsonPropertyName("resolution_id")]
+    [Required]
     public int ResolutionId { get; set; }
     [JsonPropertyName("screen_id")]
+    [Required]
     public int ScreenId { get; set; }
     [JsonPropertyName("resolution")]
-    public ResolutionDto Resolution { get; set; }
+    public ResolutionDto? Resolution { get; set; }
 }

Marechai.Data/Dtos/ResolutionDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,16 +31,20 @@ namespace Marechai.Data.Dtos;
 public class ResolutionDto : BaseDto<int>
 {
     [JsonPropertyName("width")]
+    [Required]
     public int Width { get; set; }
     [JsonPropertyName("height")]
+    [Required]
     public int Height { get; set; }
     [JsonPropertyName("colors")]
     public long? Colors { get; set; }
     [JsonPropertyName("palette")]
     public long? Palette { get; set; }
     [JsonPropertyName("chars")]
+    [Required]
     public bool Chars { get; set; }
     [JsonPropertyName("grayscale")]
+    [Required]
     public bool Grayscale { get; set; }
     [JsonIgnore]
     public long? PaletteView => Palette ?? Colors;

Marechai.Data/Dtos/ScreenByMachineDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,9 +31,11 @@ namespace Marechai.Data.Dtos;
 public class ScreenByMachineDto : BaseDto<long>
 {
     [JsonPropertyName("machine_id")]
+    [Required]
     public int MachineId { get; set; }
     [JsonPropertyName("screen")]
-    public ScreenDto Screen { get; set; }
+    public ScreenDto? Screen { get; set; }
     [JsonPropertyName("screen_id")]
+    [Required]
     public int ScreenId { get; set; }
 }

Marechai.Data/Dtos/ScreenDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -34,15 +35,17 @@ public class ScreenDto : BaseDto<int>
     [JsonPropertyName("height")]
     public double? Height { get; set; }
     [JsonPropertyName("diagonal")]
+    [Required]
     public double Diagonal { get; set; }
     [JsonPropertyName("native_resolution_id")]
+    [Required]
     public int NativeResolutionId { get; set; }
     [JsonPropertyName("native_resolution")]
-    public ResolutionDto NativeResolution { get; set; }
+    public ResolutionDto? NativeResolution { get; set; }
     [JsonPropertyName("effective_colors")]
     public long? EffectiveColors { get; set; }
     [JsonPropertyName("type")]
-    public string Type { get; set; }
+    public string? Type { get; set; }
     [JsonIgnore]
     public long? Colors => EffectiveColors ?? NativeResolution.Colors;
 

Marechai.Data/Dtos/SoftwareFamilyDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,11 +31,12 @@ namespace Marechai.Data.Dtos;
 public class SoftwareFamilyDto : BaseDto<ulong>
 {
     [JsonPropertyName("name")]
-    public string Name { get; set; }
+    [Required]
+    public required string Name { get; set; }
     [JsonPropertyName("introduced")]
     public DateTime? Introduced { get; set; }
     [JsonPropertyName("parent")]
-    public string Parent { get; set; }
+    public string? Parent { get; set; }
     [JsonPropertyName("parent_id")]
     public ulong? ParentId { get; set; }
 }

Marechai.Data/Dtos/SoftwareVariantDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 using Marechai.Database;
 
@@ -31,19 +32,21 @@ namespace Marechai.Data.Dtos;
 public class SoftwareVariantDto : BaseDto<ulong>
 {
     [JsonPropertyName("name")]
-    public string Name { get; set; }
+    [Required]
+    public required string Name { get; set; }
     [JsonPropertyName("version")]
-    public string Version { get; set; }
+    public string? Version { get; set; }
     [JsonPropertyName("introduced")]
     public DateTime? Introduced { get; set; }
     [JsonPropertyName("parent_id")]
     public ulong? ParentId { get; set; }
     [JsonPropertyName("parent")]
-    public string Parent { get; set; }
+    public string? Parent { get; set; }
     [JsonPropertyName("version_id")]
+    [Required]
     public ulong SoftwareVersionId { get; set; }
     [JsonPropertyName("version")]
-    public string SoftwareVersion { get; set; }
+    public string? SoftwareVersion { get; set; }
     [JsonPropertyName("minimum_memory")]
     public ulong? MinimumMemory { get; set; }
     [JsonPropertyName("recommended_memory")]
@@ -51,15 +54,15 @@ public class SoftwareVariantDto : BaseDto<ulong>
     [JsonPropertyName("required_storage")]
     public ulong? RequiredStorage { get; set; }
     [JsonPropertyName("part_number")]
-    public string PartNumber { get; set; }
+    public string? PartNumber { get; set; }
     [JsonPropertyName("serial_number")]
-    public string SerialNumber { get; set; }
+    public string? SerialNumber { get; set; }
     [JsonPropertyName("product_code")]
-    public string ProductCode { get; set; }
+    public string? ProductCode { get; set; }
     [JsonPropertyName("catalogue_number")]
-    public string CatalogueNumber { get; set; }
+    public string? CatalogueNumber { get; set; }
     [JsonPropertyName("distribution_mode")]
     public DistributionMode DistributionMode { get; set; }
     [JsonPropertyName("family")]
-    public string Family { get; set; }
+    public string? Family { get; set; }
 }

Marechai.Data/Dtos/SoftwareVersionDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,20 +31,22 @@ namespace Marechai.Data.Dtos;
 public class SoftwareVersionDto : BaseDto<ulong>
 {
     [JsonPropertyName("family")]
-    public string Family { get; set; }
+    public string? Family { get; set; }
     [JsonPropertyName("name")]
-    public string Name { get; set; }
+    [Required]
+    public required string Name { get; set; }
     [JsonPropertyName("codename")]
-    public string Codename { get; set; }
+    public string? Codename { get; set; }
     [JsonPropertyName("version")]
-    public string Version { get; set; }
+    public string? Version { get; set; }
     [JsonPropertyName("introduced")]
     public DateTime? Introduced { get; set; }
     [JsonPropertyName("previous")]
-    public string Previous { get; set; }
+    public string? Previous { get; set; }
     [JsonPropertyName("license")]
-    public string License { get; set; }
+    public string? License { get; set; }
     [JsonPropertyName("family_id")]
+    [Required]
     public ulong FamilyId { get; set; }
     [JsonPropertyName("license_id")]
     public int? LicenseId { get; set; }

Marechai.Data/Dtos/SoundSynthByMachineDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,11 +31,13 @@ namespace Marechai.Data.Dtos;
 public class SoundSynthByMachineDto : BaseDto<long>
 {
     [JsonPropertyName("sound_synth_id")]
+    [Required]
     public int SoundSynthId { get; set; }
     [JsonPropertyName("machine_id")]
+    [Required]
     public int MachineId { get; set; }
     [JsonPropertyName("company")]
-    public string CompanyName { get; set; }
+    public string? CompanyName { get; set; }
     [JsonPropertyName("name")]
-    public string Name { get; set; }
+    public string? Name { get; set; }
 }

Marechai.Data/Dtos/SoundSynthDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace Marechai.Data.Dtos;
@@ -30,13 +31,14 @@ namespace Marechai.Data.Dtos;
 public class SoundSynthDto : BaseDto<int>
 {
     [JsonPropertyName("name")]
-    public string Name { get; set; }
+    [Required]
+    public required string Name { get; set; }
     [JsonPropertyName("company")]
-    public string CompanyName { get; set; }
+    public string? CompanyName { get; set; }
     [JsonPropertyName("company_id")]
     public int? CompanyId { get; set; }
     [JsonPropertyName("model_code")]
-    public string ModelCode { get; set; }
+    public string? ModelCode { get; set; }
     [JsonPropertyName("introduced")]
     public DateTime? Introduced { get; set; }
     [JsonPropertyName("voices")]

Marechai.Data/Dtos/StorageByMachineDto.cs

@@ -23,6 +23,7 @@
 // Copyright © 2003-2021 Natalia Portillo
 *******************************************************************************/
 
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 using Marechai.Database;
 
@@ -31,6 +32,7 @@ namespace Marechai.Data.Dtos;
 public class StorageByMachineDto : BaseDto<long>
 {
     [JsonPropertyName("machine_id")]
+    [Required]
     public int MachineId { get; set; }
     [JsonPropertyName("type")]
     public StorageType Type { get; set; }