/// <summary>
/// Get rows from table
/// </summary>
/// <param name="clause">SQL clause</param>
/// <param name="parameters">SQL parameters</param>
/// <param name="limit">Max row count to read</param>
/// <param name="sqLiteConnection"></param>
/// <returns></returns>
private Int64? GetRowIdentity(string strQueryWhere, IEnumerable<SQLiteParameter> parameters)
{
Int64? identity = null;
string sql = string.Format(
"SELECT [{0}] FROM {1} WHERE {2} LIMIT 1;",
IdentityField,
this.TableDefinition.Name.AsDbName(),
strQueryWhere
);
using (this.Connection.OpenWrapper())
{
SelectTableCommand commandSelect = new SelectTableCommand(
this.Connection,
this.TableDefinition,
sql,
parameters
);
commandSelect.Execute(100);
if (commandSelect.Result != null)
{
if (commandSelect.Result.Count > 0L)
{
identity = (long?) commandSelect.Result.First().Values[IdentityField];
}
}
}
return identity;
}
/// <summary>
/// Get row by row id
/// </summary>
/// <param name="identity">Row identity</param>
/// <returns></returns>
public ITableRow GetRowByIdentity(Int64? identity)
{
string sql = string.Format(
"SELECT {0} FROM {1} WHERE [{2}] = {3}",
GetAllFieldsString(),
this.TableDefinition.Name.AsDbName(),
IdentityField,
identity
);
using (this.Connection.OpenWrapper())
{
SelectTableCommand select = new SelectTableCommand(
this.Connection,
this.TableDefinition,
sql,
null
);
select.Execute(100);
return select.Result.FirstOrDefault();
}
}
/// <summary>
/// Get rows from table
/// </summary>
/// <param name="clause">SQL clause</param>
/// <param name="parameters">SQL parameters</param>
/// <param name="limit">Max row count to read</param>
/// <param name="sqLiteConnection"></param>
/// <returns></returns>
public List<ITableRow> GetRows(string clause, IEnumerable<SQLiteParameter> parameters = null, int? limit = null)
{
string sql = string.Format(
"SELECT {0} FROM {1}{2}{3};",
GetAllFieldsString(),
this.TableDefinition.Name.AsDbName(),
(clause == null)
? String.Empty
: " WHERE " + clause,
(limit != null)
? " LIMIT " + limit
: String.Empty
);
using (this.Connection.OpenWrapper())
{
SelectTableCommand commandSelect = new SelectTableCommand(
this.Connection,
this.TableDefinition,
sql,
parameters
);
commandSelect.Execute(100);
return commandSelect.Result;
}
}
