private List <InsertValueContext> GetInsertValueContexts(ParameterContext parameterContext)
{
List <InsertValueContext> result = new List <InsertValueContext>(GetSqlCommand().GetAllValueExpressions().Count);
foreach (var valueExpression in GetSqlCommand().GetAllValueExpressions())
{
InsertValueContext insertValueContext = new InsertValueContext(valueExpression, parameterContext);
result.Add(insertValueContext);
}
return(result);
}
private ShardingCondition CreateShardingCondition(string tableName, IEnumerator <string> columnNames,
InsertValueContext insertValueContext, ParameterContext parameterContext)
{
ShardingCondition result = new ShardingCondition();
SPITimeService timeService = SPITimeService.GetInstance();
foreach (var valueExpression in insertValueContext.GetValueExpressions())
{
string columnName = columnNames.Next();
if (_shardingRule.IsShardingColumn(columnName, tableName))
{
if (valueExpression is ISimpleExpressionSegment simpleExpressionSegment)
{
result.RouteValues.Add(new ListRouteValue(columnName, tableName,
new List <IComparable>()
{
GetRouteValue(simpleExpressionSegment, parameterContext)
}));
}
else if (ExpressionConditionUtils.IsNowExpression(valueExpression))
{
result.RouteValues.Add(new ListRouteValue(columnName, tableName,
new List <IComparable>()
{
timeService.GetTime()
}));
}
else if (ExpressionConditionUtils.IsNullExpression(valueExpression))
{
throw new ShardingException("Insert clause sharding column can't be null.");
}
}
}
return(result);
}
