ORM中的SQL函数

Question

I have SQL Server, FreeTDS, Django 1.5.5. For SQL Server's full text search, I need to use contains function of Sql server.

This will search "mytext" in my_table's x_name field.

select x_name from my_table where contains(x_name, 'mytext')

For doing it with ORM, there is djorm-ext-expressions.

http://www.niwi.be/2012/10/07/sqlexpressions-and-functions-with-django/

That works fine if there is only one argument for the sql function, but contains have two: field name and text.

It generates Sql's Where statement like this:

MyTable.objects.where(Contains("x_name", "mytext"))
               .query.get_compiler("default").as_sql()

Output:

WHERE (contains("x_name"))', ('mytext',))

But it should output like this:

WHERE (contains("x_name", 'mytext'))

Anyone knows how to fix it?

Answer 1

我已经解决了这个问题：

MyTable.objects.where(RawExpression("contains(x_name, %s)", 'mytext'))