/// <summary>
/// Creates a command which will delete a range of entities, validating that the conditions has at least one property
/// </summary>
public static CommandDefinition MakeDeleteRangeCommand <TEntity>(
object conditions,
IDbTransaction transaction,
IDialect dialect,
int?commandTimeout,
CancellationToken cancellationToken = default(CancellationToken))
{
Ensure.NotNull(conditions, nameof(conditions));
var config = MicroCRUDConfig.Current;
dialect = dialect ?? config.Dialect;
var entityType = typeof(TEntity);
var tableSchema = TableSchemaFactory.GetTableSchema(entityType, dialect, config.SchemaFactory);
var conditionsSchema = TableSchemaFactory.GetConditionsSchema(entityType, tableSchema, conditions.GetType(), dialect, config.SchemaFactory);
if (conditionsSchema.IsEmpty)
{
throw new ArgumentException(
"DeleteRange<TEntity> requires at least one condition, use DeleteAll<TEntity> to delete everything.");
}
var sql = dialect.MakeDeleteRangeStatement(tableSchema, dialect.MakeWhereClause(conditionsSchema, conditions));
return(MakeCommandDefinition(sql, conditions, transaction, commandTimeout, cancellationToken));
}
/// <summary>
/// Creates a command which will count how many entities are in the table.
/// </summary>
public static CommandDefinition MakeCountCommand <TEntity>(
object conditions,
IDbTransaction transaction,
IDialect dialect,
int?commandTimeout,
CancellationToken cancellationToken = default(CancellationToken))
{
Ensure.NotNull(conditions, nameof(conditions));
var config = MicroCRUDConfig.Current;
dialect = dialect ?? config.Dialect;
var entityType = typeof(TEntity);
var tableSchema = TableSchemaFactory.GetTableSchema(entityType, dialect, config.SchemaFactory);
var conditionsSchema = TableSchemaFactory.GetConditionsSchema(entityType, tableSchema, conditions.GetType(), dialect, config.SchemaFactory);
var sql = dialect.MakeCountStatement(tableSchema, dialect.MakeWhereClause(conditionsSchema, conditions));
return(MakeCommandDefinition(sql, conditions, transaction, commandTimeout, cancellationToken));
}