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marechai/Cicm.Database/Operations/OwnComputer.cs

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Add file headers.
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/******************************************************************************
// Canary Islands Computer Museum Website
// ----------------------------------------------------------------------------
//
// Filename : OwnConsole.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// --[ Description ] ----------------------------------------------------------
//
// Contains operations to manage owned computers.
//
// --[ License ] --------------------------------------------------------------
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2003-2018 Natalia Portillo
*******************************************************************************/
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using System;
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using System.Collections.Generic;
using System.Data;
using Cicm.Database.Schemas;
using Console = System.Console;
namespace Cicm.Database
{
public partial class Operations
{
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/// <summary>
/// Gets all owned computers
/// </summary>
/// <param name="entries">All owned computers</param>
/// <returns><c>true</c> if <see cref="entries" /> is correct, <c>false</c> otherwise</returns>
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public bool GetOwnOwnComputers(out List<OwnComputer> entries)
{
#if DEBUG
Console.WriteLine("Getting all owned computers...");
#endif
try
{
const string SQL = "SELECT * from own_computer";
IDbCommand dbCmd = dbCon.CreateCommand();
IDbDataAdapter dataAdapter = dbCore.GetNewDataAdapter();
dbCmd.CommandText = SQL;
DataSet dataSet = new DataSet();
dataAdapter.SelectCommand = dbCmd;
dataAdapter.Fill(dataSet);
entries = OwnOwnComputersFromDataTable(dataSet.Tables[0]);
return true;
}
catch(Exception ex)
{
Console.WriteLine("Error getting owned computers.");
Console.WriteLine(ex);
entries = null;
return false;
}
}
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/// <summary>
/// Gets the specified number of owned computers since the specified start
/// </summary>
/// <param name="entries">List of owned computers</param>
/// <param name="start">Start of query</param>
/// <param name="count">How many entries to retrieve</param>
/// <returns><c>true</c> if <see cref="entries" /> is correct, <c>false</c> otherwise</returns>
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public bool GetOwnOwnComputers(out List<OwnComputer> entries, ulong start, ulong count)
{
#if DEBUG
Console.WriteLine("Getting {0} owned computers from {1}...", count, start);
#endif
try
{
string sql = $"SELECT * FROM own_computer 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 = OwnOwnComputersFromDataTable(dataSet.Tables[0]);
return true;
}
catch(Exception ex)
{
Console.WriteLine("Error getting owned computers.");
Console.WriteLine(ex);
entries = null;
return false;
}
}
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/// <summary>
/// Gets owned computer by specified id
/// </summary>
/// <param name="id">Id</param>
/// <returns>Owned computer with specified id, <c>null</c> if not found or error</returns>
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public OwnComputer GetOwnComputer(int id)
{
#if DEBUG
Console.WriteLine("Getting owned computer with id {0}...", id);
#endif
try
{
string sql = $"SELECT * from own_computer 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<OwnComputer> entries = OwnOwnComputersFromDataTable(dataSet.Tables[0]);
return entries == null || entries.Count == 0 ? null : entries[0];
}
catch(Exception ex)
{
Console.WriteLine("Error getting owned computer.");
Console.WriteLine(ex);
return null;
}
}
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/// <summary>
/// Counts the number of owned computers in the database
/// </summary>
/// <returns>Entries in database</returns>
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public long CountOwnOwnComputers()
{
#if DEBUG
Console.WriteLine("Counting owned computers...");
#endif
IDbCommand dbcmd = dbCon.CreateCommand();
dbcmd.CommandText = "SELECT COUNT(*) FROM own_computer";
object count = dbcmd.ExecuteScalar();
dbcmd.Dispose();
try { return Convert.ToInt64(count); }
catch { return 0; }
}
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/// <summary>
/// Adds a new owned computer to the database
/// </summary>
/// <param name="entry">Entry to add</param>
/// <param name="id">ID of added entry</param>
/// <returns><c>true</c> if added correctly, <c>false</c> otherwise</returns>
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public bool AddOwnComputer(OwnComputer entry, out long id)
{
#if DEBUG
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Console.Write("Adding owned computer `{0}`...", entry.ComputerId);
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#endif
IDbCommand dbcmd = GetCommandOwnComputer(entry);
IDbTransaction trans = dbCon.BeginTransaction();
dbcmd.Transaction = trans;
const string SQL =
"INSERT INTO own_computer (db_id, date, status, trade, boxed, manuals, cpu1, mhz1, cpu2, mhz2, ram, vram, rigid, disk1, cap1, disk2, cap2)" +
" VALUES (@db_id, @date, @status, @trade, @boxed, @manuals, @cpu1, @mhz1, @cpu2, @mhz2, @ram, @vram, @rigid, @disk1, @cap1, @disk2, @cap2)";
dbcmd.CommandText = SQL;
dbcmd.ExecuteNonQuery();
trans.Commit();
dbcmd.Dispose();
id = dbCore.LastInsertRowId;
#if DEBUG
Console.WriteLine(" id {0}", id);
#endif
return true;
}
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/// <summary>
/// Updated an owned computer in the database
/// </summary>
/// <param name="entry">Updated entry</param>
/// <returns><c>true</c> if updated correctly, <c>false</c> otherwise</returns>
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public bool UpdateOwnComputer(OwnComputer entry)
{
#if DEBUG
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Console.WriteLine("Updating computer `{0}`...", entry.ComputerId);
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#endif
IDbCommand dbcmd = GetCommandOwnComputer(entry);
IDbTransaction trans = dbCon.BeginTransaction();
dbcmd.Transaction = trans;
string sql =
"UPDATE own_computer SET db_id = @db_id, date = @date, status = @status, trade = @trade, boxed = @boxed, manuals = @manuals, cpu1 = @cpu1" +
"mhz1 = @mhz1, cpu2 = @cpu2, mhz2 = @mhz2, ram = @ram, vram = @vram, rigid = @rigid, disk1 = @disk1, cap1 = @cap1, disk2 = @disk2, cap2 = @cap2 " +
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$"WHERE id = {entry.Id}";
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dbcmd.CommandText = sql;
dbcmd.ExecuteNonQuery();
trans.Commit();
dbcmd.Dispose();
return true;
}
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/// <summary>
/// Removes an owned computer from the database
/// </summary>
/// <param name="id">ID of entry to remove</param>
/// <returns><c>true</c> if removed correctly, <c>false</c> otherwise</returns>
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public bool RemoveOwnComputer(long id)
{
#if DEBUG
Console.WriteLine("Removing owned computer widh id `{0}`...", id);
#endif
IDbCommand dbcmd = dbCon.CreateCommand();
IDbTransaction trans = dbCon.BeginTransaction();
dbcmd.Transaction = trans;
string sql = $"DELETE FROM own_computer WHERE id = '{id}';";
dbcmd.CommandText = sql;
dbcmd.ExecuteNonQuery();
trans.Commit();
dbcmd.Dispose();
return true;
}
IDbCommand GetCommandOwnComputer(OwnComputer entry)
{
IDbCommand dbcmd = dbCon.CreateCommand();
IDbDataParameter param1 = dbcmd.CreateParameter();
IDbDataParameter param2 = dbcmd.CreateParameter();
IDbDataParameter param3 = dbcmd.CreateParameter();
IDbDataParameter param4 = dbcmd.CreateParameter();
IDbDataParameter param5 = dbcmd.CreateParameter();
IDbDataParameter param6 = dbcmd.CreateParameter();
IDbDataParameter param7 = dbcmd.CreateParameter();
IDbDataParameter param8 = dbcmd.CreateParameter();
IDbDataParameter param9 = dbcmd.CreateParameter();
IDbDataParameter param10 = dbcmd.CreateParameter();
IDbDataParameter param11 = dbcmd.CreateParameter();
IDbDataParameter param12 = dbcmd.CreateParameter();
IDbDataParameter param13 = dbcmd.CreateParameter();
IDbDataParameter param14 = dbcmd.CreateParameter();
IDbDataParameter param15 = dbcmd.CreateParameter();
IDbDataParameter param16 = dbcmd.CreateParameter();
IDbDataParameter param17 = dbcmd.CreateParameter();
param1.ParameterName = "@db_id";
param2.ParameterName = "@date";
param3.ParameterName = "@status";
param4.ParameterName = "@trade";
param5.ParameterName = "@boxed";
param6.ParameterName = "@manuals";
param7.ParameterName = "@cpu1";
param8.ParameterName = "@mhz1";
param9.ParameterName = "@cpu2";
param10.ParameterName = "@mhz2";
param11.ParameterName = "@ram";
param12.ParameterName = "@vram";
param13.ParameterName = "@rigid";
param14.ParameterName = "@disk1";
param15.ParameterName = "@cap1";
param16.ParameterName = "@disk2";
param17.ParameterName = "@cap2";
param1.DbType = DbType.Int32;
param2.DbType = DbType.String;
param3.DbType = DbType.Int32;
param4.DbType = DbType.Boolean;
param5.DbType = DbType.Boolean;
param6.DbType = DbType.Boolean;
param7.DbType = DbType.Int32;
param8.DbType = DbType.Double;
param9.DbType = DbType.Int32;
param10.DbType = DbType.Double;
param11.DbType = DbType.Int32;
param12.DbType = DbType.Int32;
param13.DbType = DbType.String;
param14.DbType = DbType.Int32;
param15.DbType = DbType.Int32;
param16.DbType = DbType.Int32;
param17.DbType = DbType.Int32;
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param1.Value = entry.ComputerId;
param2.Value = entry.Acquired;
param3.Value = entry.Status;
param4.Value = entry.Trade;
param5.Value = entry.Boxed;
param6.Value = entry.Manuals;
param7.Value = entry.Cpu1;
param8.Value = entry.Mhz1;
param9.Value = entry.Cpu2;
param10.Value = entry.Mhz2;
param11.Value = entry.Ram;
param12.Value = entry.Vram;
param13.Value = entry.Rigid;
param14.Value = entry.Disk1;
param15.Value = entry.Cap1;
param16.Value = entry.Disk2;
param17.Value = entry.Cap2;
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dbcmd.Parameters.Add(param1);
dbcmd.Parameters.Add(param2);
dbcmd.Parameters.Add(param3);
dbcmd.Parameters.Add(param4);
dbcmd.Parameters.Add(param5);
dbcmd.Parameters.Add(param6);
dbcmd.Parameters.Add(param7);
dbcmd.Parameters.Add(param8);
dbcmd.Parameters.Add(param9);
dbcmd.Parameters.Add(param10);
dbcmd.Parameters.Add(param11);
dbcmd.Parameters.Add(param12);
dbcmd.Parameters.Add(param13);
dbcmd.Parameters.Add(param14);
dbcmd.Parameters.Add(param15);
dbcmd.Parameters.Add(param16);
dbcmd.Parameters.Add(param17);
return dbcmd;
}
static List<OwnComputer> OwnOwnComputersFromDataTable(DataTable dataTable)
{
List<OwnComputer> entries = new List<OwnComputer>();
foreach(DataRow dataRow in dataTable.Rows)
{
OwnComputer entry = new OwnComputer
{
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Id = int.Parse(dataRow["id"].ToString()),
ComputerId = int.Parse(dataRow["db_id"].ToString()),
Acquired = dataRow["date"].ToString(),
Status = int.Parse(dataRow["status"].ToString()),
Trade = bool.Parse(dataRow["trade"].ToString()),
Boxed = bool.Parse(dataRow["boxed"].ToString()),
Manuals = bool.Parse(dataRow["manuals"].ToString()),
Cpu1 = int.Parse(dataRow["cpu1"].ToString()),
Mhz1 = float.Parse(dataRow["mhz1"].ToString()),
Cpu2 = int.Parse(dataRow["cpu1"].ToString()),
Mhz2 = float.Parse(dataRow["mhz2"].ToString()),
Ram = int.Parse(dataRow["ram"].ToString()),
Vram = int.Parse(dataRow["vram"].ToString()),
Rigid = dataRow["rigid"].ToString(),
Disk1 = int.Parse(dataRow["disk1"].ToString()),
Cap1 = int.Parse(dataRow["cap1"].ToString()),
Disk2 = int.Parse(dataRow["disk2"].ToString()),
Cap2 = int.Parse(dataRow["cap2"].ToString())
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};
entries.Add(entry);
}
return entries;
}
}
}
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