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Add operations for database version 2.

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Natalia Portillo
2018-04-12 10:05:42 +01:00
parent 8e999c1b2f
commit de9dc90b86
25 changed files with 4709 additions and 196 deletions
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225
Cicm.Database/Operations/MoneyDonation.cs Normal file
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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 GetMoneyDonations(out List<MoneyDonation> entries)
{
#if DEBUG
Console.WriteLine("Getting all money donations...");
#endif
try
{
const string SQL = "SELECT * from money_donation";
IDbCommand dbCmd = dbCon.CreateCommand();
IDbDataAdapter dataAdapter = dbCore.GetNewDataAdapter();
dbCmd.CommandText = SQL;
DataSet dataSet = new DataSet();
dataAdapter.SelectCommand = dbCmd;
dataAdapter.Fill(dataSet);
entries = MoneyDonationsFromDataTable(dataSet.Tables[0]);
return true;
}
catch(Exception ex)
{
Console.WriteLine("Error getting money donations.");
Console.WriteLine(ex);
entries = null;
return false;
}
}
public bool GetMoneyDonations(out List<MoneyDonation> entries, ulong start, ulong count)
{
#if DEBUG
Console.WriteLine("Getting {0} money donations from {1}...", count, start);
#endif
try
{
string sql = $"SELECT * FROM money_donation 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 = MoneyDonationsFromDataTable(dataSet.Tables[0]);
return true;
}
catch(Exception ex)
{
Console.WriteLine("Error getting money donations.");
Console.WriteLine(ex);
entries = null;
return false;
}
}
public MoneyDonation GetMoneyDonation(int id)
{
#if DEBUG
Console.WriteLine("Getting money_donation with id {0}...", id);
#endif
try
{
string sql = $"SELECT * from money_donation 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<MoneyDonation> entries = MoneyDonationsFromDataTable(dataSet.Tables[0]);
return entries == null || entries.Count == 0 ? null : entries[0];
}
catch(Exception ex)
{
Console.WriteLine("Error getting money_donation.");
Console.WriteLine(ex);
return null;
}
}
public long CountMoneyDonations()
{
#if DEBUG
Console.WriteLine("Counting money donations...");
#endif
IDbCommand dbcmd = dbCon.CreateCommand();
dbcmd.CommandText = "SELECT COUNT(*) FROM money_donation";
object count = dbcmd.ExecuteScalar();
dbcmd.Dispose();
try { return Convert.ToInt64(count); }
catch { return 0; }
}
public bool AddMoneyDonation(MoneyDonation entry, out long id)
{
#if DEBUG
Console.Write("Adding money_donation `{0}` for `{1}`...", entry.donator, entry.quantity);
#endif
IDbCommand dbcmd = GetCommandMoneyDonation(entry);
IDbTransaction trans = dbCon.BeginTransaction();
dbcmd.Transaction = trans;
const string SQL = "INSERT INTO money_donation (donator, quantity)" + " VALUES (@donator, @quantity)";
dbcmd.CommandText = SQL;
dbcmd.ExecuteNonQuery();
trans.Commit();
dbcmd.Dispose();
id = dbCore.LastInsertRowId;
#if DEBUG
Console.WriteLine(" id {0}", id);
#endif
return true;
}
public bool UpdateMoneyDonation(MoneyDonation entry)
{
#if DEBUG
Console.WriteLine("Updating money_donation `{0}`...", entry.donator);
#endif
IDbCommand dbcmd = GetCommandMoneyDonation(entry);
IDbTransaction trans = dbCon.BeginTransaction();
dbcmd.Transaction = trans;
string sql = "UPDATE money_donation SET donator = @donator, quantity = @quantity " +
$"WHERE id = {entry.id}";
dbcmd.CommandText = sql;
dbcmd.ExecuteNonQuery();
trans.Commit();
dbcmd.Dispose();
return true;
}
public bool RemoveMoneyDonation(long id)
{
#if DEBUG
Console.WriteLine("Removing money_donation widh id `{0}`...", id);
#endif
IDbCommand dbcmd = dbCon.CreateCommand();
IDbTransaction trans = dbCon.BeginTransaction();
dbcmd.Transaction = trans;
string sql = $"DELETE FROM money_donation WHERE id = '{id}';";
dbcmd.CommandText = sql;
dbcmd.ExecuteNonQuery();
trans.Commit();
dbcmd.Dispose();
return true;
}
IDbCommand GetCommandMoneyDonation(MoneyDonation entry)
{
IDbCommand dbcmd = dbCon.CreateCommand();
IDbDataParameter param1 = dbcmd.CreateParameter();
IDbDataParameter param2 = dbcmd.CreateParameter();
param1.ParameterName = "@donator";
param2.ParameterName = "@quantity";
param1.DbType = DbType.String;
param2.DbType = DbType.Double;
param1.Value = entry.donator;
param2.Value = entry.quantity;
dbcmd.Parameters.Add(param1);
dbcmd.Parameters.Add(param2);
return dbcmd;
}
static List<MoneyDonation> MoneyDonationsFromDataTable(DataTable dataTable)
{
List<MoneyDonation> entries = new List<MoneyDonation>();
foreach(DataRow dataRow in dataTable.Rows)
{
MoneyDonation entry = new MoneyDonation
{
id = int.Parse(dataRow["id"].ToString()),
donator = dataRow["browser"].ToString(),
quantity = float.Parse(dataRow["date"].ToString())
};
entries.Add(entry);
}
return entries;
}
}
}