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Groups.cs
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using Database.Models;
using System;
using System.Collections;
using System.Data.SQLite;
namespace Database
{
public class Groups : SQLiteDataController
{
public Groups()
{
}
public ArrayList ArrayListGroups { get; set; } = new ArrayList();
public void Read()
{
string sql = "SELECT groupid, group_name FROM Groups";
string result = base.ExecuteQuery(sql, null);
this.ArrayListGroups.Clear();
if (result == string.Empty)
{
while (base.Database.Reader.Read())
{
Model_GroupDetails gd = new Model_GroupDetails();
gd.GroupID = int.Parse(base.Database.Reader["groupid"].ToString());
gd.GroupName = base.Database.Reader["group_name"].ToString();
this.ArrayListGroups.Add(gd);
}
}
else
{
base.Database.CloseConnection();
System.Diagnostics.Debug.WriteLine(result);
throw new Exception(result);
}
base.Database.CloseConnection();
}
public void Save(bool isNew, Model_GroupDetails group_details)
{
if (isNew)
{
Save(group_details);
}
else
{
Update(group_details);
}
}
private void Save(Model_GroupDetails group_details)
{
string sql = "INSERT INTO Groups(groupid, group_name) VALUES((select count(Groups.groupid) from groups) + 1, @gname);";
SQLiteParameter[] parameters = {
new SQLiteParameter("@gname", group_details.GroupName)
};
string result = base.ExecuteNonQuery(sql, parameters);
if (result == string.Empty)
{
}
else
{
base.Database.CloseConnection();
System.Diagnostics.Debug.WriteLine(result);
if (result.Contains("Abort due to constraint violation"))
{
throw new DatabaseException(DatabaseException.ExceptionTypes.DUPLICATE_ENTRY);
}
else
{
throw new Exception(result);
}
}
base.Database.CloseConnection();
}
private void Update(Model_GroupDetails group_details)
{
string sql = "UPDATE Groups SET groupid = @gid, group_name = @gname WHERE groupid = @gid";
SQLiteParameter[] parameters = {
new SQLiteParameter("@gid", group_details.GroupID),
new SQLiteParameter("@gname", group_details.GroupName)
};
string result = base.ExecuteNonQuery(sql, parameters);
if (result == string.Empty)
{
}
else
{
base.Database.CloseConnection();
System.Diagnostics.Debug.WriteLine(result);
if (result.Contains("Abort due to constraint violation"))
{
throw new DatabaseException(DatabaseException.ExceptionTypes.DUPLICATE_ENTRY);
}
else
{
throw new Exception(result);
}
}
base.Database.CloseConnection();
}
public void DeleteByID(int id)
{
string sql = "DELETE FROM Groups WHERE Groups.groupid = @gid";
SQLiteParameter[] parameters = {
new SQLiteParameter("@gid", id)
};
string result = base.ExecuteNonQuery(sql, parameters);
if (result == string.Empty)
{
}
else
{
base.Database.CloseConnection();
System.Diagnostics.Debug.WriteLine(result);
throw new Exception(result);
}
base.Database.CloseConnection();
}
public string GetGroupNameByID(int id)
{
string ret = string.Empty;
string SQL = "SELECT group_name FROM Groups WHERE groupid = @gid";
SQLiteParameter[] paramters = {
new SQLiteParameter("@gid", id)
};
string result = base.ExecuteQuery(SQL, paramters);
if (result == string.Empty)
{
if (base.Database.Reader.HasRows)
{
base.Database.Reader.Read();
ret = base.Database.Reader["group_name"].ToString();
}
}
else
{
base.Database.CloseConnection();
throw new Exception(result);
}
base.Database.CloseConnection();
return ret;
}
public int GetIDByGroupName(string name)
{
int ret = 0;
string SQL = "SELECT groupid FROM Groups WHERE group_name = @gname";
SQLiteParameter[] paramters = {
new SQLiteParameter("@gname", name)
};
string result = base.ExecuteQuery(SQL, paramters);
if (result == string.Empty)
{
if (base.Database.Reader.HasRows)
{
base.Database.Reader.Read();
ret = int.Parse(base.Database.Reader["groupid"].ToString());
}
}
else
{
base.Database.CloseConnection();
throw new Exception(result);
}
base.Database.CloseConnection();
return ret;
}
public void GetGroupsWithServerCount()
{
string sql = "select * from viewGroupsWithServerCount";
string result = base.ExecuteQuery(sql, null);
if (result == string.Empty)
{
if (base.Database.Reader.HasRows)
{
this.ArrayListGroups.Clear();
while (base.Database.Reader.Read())
{
Model_GroupDetails gd = new Model_GroupDetails();
gd.GroupID = int.Parse(base.Database.Reader["groupid"].ToString());
gd.GroupName = base.Database.Reader["group_name"].ToString();
gd.ServerCount = int.Parse(base.Database.Reader["ServerCount"].ToString());
this.ArrayListGroups.Add(gd);
}
}
}
else
{
base.Database.CloseConnection();
throw new Exception(result);
}
base.Database.CloseConnection();
}
}
}