protected override void PopulateColumns(IList <Column> columnsCollection)
{
using (Database.CreateConnectionScope()) {
var primaryKeys = new HashSet <string>();
if (!IsReadOnly)
{
using (var command = Connection.CreateCommand()) {
command.CommandText =
"select " +
" TRIM(sg.rdb$field_name) as field_name "+
"from " +
" rdb$indices ix "+
" left join rdb$index_segments sg on ix.rdb$index_name = sg.rdb$index_name "+
" left join rdb$relation_constraints rc on rc.rdb$index_name = ix.rdb$index_name "+
"where " +
" rc.rdb$constraint_type = 'PRIMARY KEY' "+
" and rc.rdb$relation_name = @TableName";
command.Parameters.AddWithValue("@TableName", Name.ToUpper());
using (var reader = command.ExecuteReader()) {
while (reader.Read())
{
primaryKeys.Add(reader.GetString(0));
}
}
}
}
using (var columns = database.Connection.GetSchema("Columns", new[] { null, TableSchema, TableName, null })) {
foreach (DataRow row in columns.Rows)
{
var column = new Column(this)
{
Name = row["COLUMN_NAME"].ToString(),
ProviderType = row["COLUMN_DATA_TYPE"].ToString().ToLower(),
};
column.Type = FbProvider.MapType(column.ProviderType);
if (column.Type == typeof(string))
{
column.ProviderType += "(" + row["COLUMN_SIZE"] + ")";
}
column.InPrimaryKey = primaryKeys.Contains(column.Name);
columnsCollection.Add(column);
}
}
}
}
protected override void PopulateParameters(IList <Parameter> parametersCollection)
{
using (var parameters = database.Connection.GetSchema("ProcedureParameters", new[] { null, null, Name })) {
foreach (DataRow row in parameters.Rows)
{
var p = new Parameter()
{
Name = (string)row["PARAMETER_NAME"],
IsOutput = (int)row["PARAMETER_DIRECTION"] == 2,
ProviderType = (string)row["PARAMETER_DATA_TYPE"],
};
p.ParameterType = FbProvider.MapType(p.ProviderType);
if (p.ParameterType == typeof(string))
{
p.ProviderType += "(" + row["PARAMETER_SIZE"].ToString() + ")";
}
parametersCollection.Add(p);
}
}
}
