You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
50 lines
1.9 KiB
50 lines
1.9 KiB
using System;
|
|
using System.Collections.Generic;
|
|
using System.Linq;
|
|
using System.Text;
|
|
|
|
namespace FLocal.Core.DB {
|
|
public interface IDBConnection : IDisposable {
|
|
|
|
List<Dictionary<string, string>> LoadByIds(ITableSpec table, List<string> ids);
|
|
|
|
List<string> LoadIdsByConditions(ITableSpec table, conditions.AbstractCondition conditions, Diapasone diapasone, JoinSpec[] joins, SortSpec[] sorts);
|
|
|
|
Transaction beginTransaction(System.Data.IsolationLevel iso);
|
|
|
|
void lockTable(Transaction transaction, ITableSpec table);
|
|
|
|
void lockRow(Transaction transaction, ITableSpec table, string id);
|
|
|
|
void update(Transaction transaction, ITableSpec table, string id, Dictionary<string, string> data);
|
|
|
|
string insert(Transaction transaction, ITableSpec table, Dictionary<string, string> data);
|
|
|
|
void delete(Transaction transaction, ITableSpec table, string id); //do we really need this?
|
|
|
|
}
|
|
|
|
public static class IDBConnectionExtensions {
|
|
|
|
public static List<string> LoadIdsByConditions(this IDBConnection connection, ITableSpec table, conditions.AbstractCondition conditions, Diapasone diapasone, params JoinSpec[] joins) {
|
|
return connection.LoadIdsByConditions(table, conditions, diapasone, joins, new SortSpec[] { new SortSpec(table.getIdSpec(), true) });
|
|
}
|
|
|
|
public static Transaction beginTransaction(this IDBConnection connection) {
|
|
return connection.beginTransaction(System.Data.IsolationLevel.Snapshot);
|
|
}
|
|
|
|
public static Dictionary<string, string> LoadById(this IDBConnection connection, ITableSpec table, string id) {
|
|
List<Dictionary<string, string>> rows = connection.LoadByIds(table, new List<string> { id });
|
|
if(rows.Count < 1) {
|
|
throw new NotFoundInDBException();
|
|
}
|
|
if(rows.Count > 1) {
|
|
throw new CriticalException(rows.Count + " objects with specified id");
|
|
}
|
|
return rows[0];
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|