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43 lines
1.2 KiB
43 lines
1.2 KiB
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Data.Common;
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using Npgsql;
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using Web.Core.DB;
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namespace MySQLConnector {
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public class PostgresDBTraits : IDBTraits {
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public static readonly PostgresDBTraits instance = new PostgresDBTraits();
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public DbConnection createConnection(string connectionString) {
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return new Npgsql.NpgsqlConnection(connectionString);
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}
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public long LastInsertId(DbCommand command, ITableSpec table) {
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string sequenceName = table.name + "_" + table.idName + "_seq";
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using(DbCommand newCommand = command.Connection.CreateCommand()) {
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if(command.Transaction != null) {
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newCommand.Transaction = command.Transaction;
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}
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newCommand.CommandType = System.Data.CommandType.Text;
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newCommand.CommandText = "SELECT CURRVAL('" + this.escapeIdentifier(sequenceName) + "')";
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return (long)newCommand.ExecuteScalar();
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}
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}
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public string escapeIdentifier(string identifier) {
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return "\"" + identifier.Replace("\"", "") + "\"";
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}
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public string markParam(string param) {
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return ":" + param;
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}
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public bool supportsIsolationLevel() {
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return true;
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}
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}
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}
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