Add operations for database version 2.

Cicm.Database/Operations/ConsoleCompany.cs

@@ -0,0 +1,218 @@
+using System;
+using System.Collections.Generic;
+using System.Data;
+using Cicm.Database.Schemas;
+using Console = System.Console;
+
+namespace Cicm.Database
+{
+    public partial class Operations
+    {
+        public bool GetConsoleCompanies(out List<ConsoleCompany> entries)
+        {
+            #if DEBUG
+            Console.WriteLine("Getting all console companies...");
+            #endif
+
+            try
+            {
+                const string SQL = "SELECT * from console_company";
+
+                IDbCommand     dbCmd       = dbCon.CreateCommand();
+                IDbDataAdapter dataAdapter = dbCore.GetNewDataAdapter();
+                dbCmd.CommandText = SQL;
+                DataSet dataSet = new DataSet();
+                dataAdapter.SelectCommand = dbCmd;
+                dataAdapter.Fill(dataSet);
+
+                entries = ConsoleCompaniesFromDataTable(dataSet.Tables[0]);
+
+                return true;
+            }
+            catch(Exception ex)
+            {
+                Console.WriteLine("Error getting console companies.");
+                Console.WriteLine(ex);
+                entries = null;
+                return false;
+            }
+        }
+
+        public bool GetConsoleCompanies(out List<ConsoleCompany> entries, ulong start, ulong count)
+        {
+            #if DEBUG
+            Console.WriteLine("Getting {0} console companies from {1}...", count, start);
+            #endif
+
+            try
+            {
+                string sql = $"SELECT * FROM console_company LIMIT {start}, {count}";
+
+                IDbCommand     dbCmd       = dbCon.CreateCommand();
+                IDbDataAdapter dataAdapter = dbCore.GetNewDataAdapter();
+                dbCmd.CommandText = sql;
+                DataSet dataSet = new DataSet();
+                dataAdapter.SelectCommand = dbCmd;
+                dataAdapter.Fill(dataSet);
+
+                entries = ConsoleCompaniesFromDataTable(dataSet.Tables[0]);
+
+                return true;
+            }
+            catch(Exception ex)
+            {
+                Console.WriteLine("Error getting console companies.");
+                Console.WriteLine(ex);
+                entries = null;
+                return false;
+            }
+        }
+
+        public ConsoleCompany GetConsoleCompany(int id)
+        {
+            #if DEBUG
+            Console.WriteLine("Getting console company with id {0}...", id);
+            #endif
+
+            try
+            {
+                string sql = $"SELECT * from console_company WHERE id = '{id}'";
+
+                IDbCommand     dbCmd       = dbCon.CreateCommand();
+                IDbDataAdapter dataAdapter = dbCore.GetNewDataAdapter();
+                dbCmd.CommandText = sql;
+                DataSet dataSet = new DataSet();
+                dataAdapter.SelectCommand = dbCmd;
+                dataAdapter.Fill(dataSet);
+
+                List<ConsoleCompany> entries = ConsoleCompaniesFromDataTable(dataSet.Tables[0]);
+
+                return entries == null || entries.Count == 0 ? null : entries[0];
+            }
+            catch(Exception ex)
+            {
+                Console.WriteLine("Error getting console company.");
+                Console.WriteLine(ex);
+                return null;
+            }
+        }
+
+        public long CountConsoleCompanies()
+        {
+            #if DEBUG
+            Console.WriteLine("Counting console companies...");
+            #endif
+
+            IDbCommand dbcmd = dbCon.CreateCommand();
+            dbcmd.CommandText = "SELECT COUNT(*) FROM console_company";
+            object count = dbcmd.ExecuteScalar();
+            dbcmd.Dispose();
+            try { return Convert.ToInt64(count); }
+            catch { return 0; }
+        }
+
+        public bool AddConsoleCompany(ConsoleCompany entry, out long id)
+        {
+            #if DEBUG
+            Console.Write("Adding console company `{0}`...", entry.company);
+            #endif
+
+            IDbCommand     dbcmd = GetCommandConsoleCompany(entry);
+            IDbTransaction trans = dbCon.BeginTransaction();
+            dbcmd.Transaction = trans;
+
+            const string SQL = "INSERT INTO console_company (company)" + " VALUES (@company)";
+
+            dbcmd.CommandText = SQL;
+
+            dbcmd.ExecuteNonQuery();
+            trans.Commit();
+            dbcmd.Dispose();
+
+            id = dbCore.LastInsertRowId;
+
+            #if DEBUG
+            Console.WriteLine(" id {0}", id);
+            #endif
+
+            return true;
+        }
+
+        public bool UpdateConsoleCompany(ConsoleCompany entry)
+        {
+            #if DEBUG
+            Console.WriteLine("Updating console company `{0}`...", entry.company);
+            #endif
+
+            IDbCommand     dbcmd = GetCommandConsoleCompany(entry);
+            IDbTransaction trans = dbCon.BeginTransaction();
+            dbcmd.Transaction = trans;
+
+            string sql = "UPDATE console_company SET company = @company " + $"WHERE id = {entry.id}";
+
+            dbcmd.CommandText = sql;
+
+            dbcmd.ExecuteNonQuery();
+            trans.Commit();
+            dbcmd.Dispose();
+
+            return true;
+        }
+
+        public bool RemoveConsoleCompany(long id)
+        {
+            #if DEBUG
+            Console.WriteLine("Removing console company widh id `{0}`...", id);
+            #endif
+
+            IDbCommand     dbcmd = dbCon.CreateCommand();
+            IDbTransaction trans = dbCon.BeginTransaction();
+            dbcmd.Transaction = trans;
+
+            string sql = $"DELETE FROM console_company WHERE id = '{id}';";
+
+            dbcmd.CommandText = sql;
+
+            dbcmd.ExecuteNonQuery();
+            trans.Commit();
+            dbcmd.Dispose();
+
+            return true;
+        }
+
+        IDbCommand GetCommandConsoleCompany(ConsoleCompany entry)
+        {
+            IDbCommand dbcmd = dbCon.CreateCommand();
+
+            IDbDataParameter param1 = dbcmd.CreateParameter();
+
+            param1.ParameterName = "@company";
+
+            param1.DbType = DbType.String;
+
+            param1.Value = entry.company;
+
+            dbcmd.Parameters.Add(param1);
+
+            return dbcmd;
+        }
+
+        static List<ConsoleCompany> ConsoleCompaniesFromDataTable(DataTable dataTable)
+        {
+            List<ConsoleCompany> entries = new List<ConsoleCompany>();
+
+            foreach(DataRow dataRow in dataTable.Rows)
+            {
+                ConsoleCompany entry = new ConsoleCompany
+                {
+                    id      = int.Parse(dataRow["id"].ToString()),
+                    company = dataRow["company"].ToString()
+                };
+
+                entries.Add(entry);
+            }
+
+            return entries;
+        }
+    }
+}