Cosmos/Resources/Dependencies/DapperExtensions.StrongName/Sql/SqliteDialect.cs

53 lines
1.7 KiB
C#

using System;
using System.Collections.Generic;
using System.Text;
namespace DapperExtensions.Sql
{
public class SqliteDialect : SqlDialectBase
{
public override string GetIdentitySql(string tableName)
{
return "SELECT LAST_INSERT_ROWID() AS [Id]";
}
public override string GetPagingSql(string sql, int page, int resultsPerPage, IDictionary<string, object> parameters)
{
int startValue = page * resultsPerPage;
return GetSetSql(sql, startValue, resultsPerPage, parameters);
}
public override string GetSetSql(string sql, int firstResult, int maxResults, IDictionary<string, object> parameters)
{
if (string.IsNullOrEmpty(sql))
{
throw new ArgumentNullException("SQL");
}
if (parameters == null)
{
throw new ArgumentNullException("Parameters");
}
var result = string.Format("{0} LIMIT @Offset, @Count", sql);
parameters.Add("@Offset", firstResult);
parameters.Add("@Count", maxResults);
return result;
}
public override string GetColumnName(string prefix, string columnName, string alias)
{
if (string.IsNullOrWhiteSpace(columnName))
{
throw new ArgumentNullException(columnName, "columnName cannot be null or empty.");
}
var result = new StringBuilder();
result.AppendFormat(columnName);
if (!string.IsNullOrWhiteSpace(alias))
{
result.AppendFormat(" AS {0}", QuoteString(alias));
}
return result.ToString();
}
}
}