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PODjango: RawQuerySet problem with passing multiple params
 

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  1. PODjango: RawQuerySet problem with passing multiple params
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    <p>I've used answer from this question:</p> <blockquote> <p><a href="https://stackoverflow.com/questions/2944261/django-making-raw-sql-query-passing-multiple-repeated-params">Django: making raw SQL query, passing multiple/repeated params?</a></p> </blockquote> <p>but have some problems. </p> <p>I have params:</p> <pre><code>params = {'film_id_string': 'core_film.parent_id', 'tags_params': 'comedy', 'order_by': 'core_film.title', 'content_type': '18', 'language_code': 'en'} </code></pre> <p>for SQL query: </p> <pre><code>query = 'SELECT DISTINCT "core_object".*, "core_film".* FROM "core_film" INNER JOIN "core_object" ON ("core_film"."parent_id" = "core_object"."id") LEFT OUTER JOIN "core_objectlocalized" ON ("core_objectlocalized"."parent_id" = %(film_id_string)s) LEFT OUTER JOIN "tagging_taggeditem" ON ("tagging_taggeditem"."object_id" = "core_objectlocalized"."id") LEFT OUTER JOIN "tagging_tag" ON ("tagging_tag"."id" = "tagging_taggeditem"."tag_id") WHERE "tagging_tag"."name" IN (%(tags_params)s) AND "core_objectlocalized"."LANG"=%(language_code)s AND content_type_id=%(content_type)s ORDER BY %(order_by)s' </code></pre> <p>When I tried to use RawQuerySet</p> <pre><code>films = Film.objects.raw(query, params) </code></pre> <p>I get:</p> <pre><code>SELECT DISTINCT "core_object".*, "core_film".* FROM "core_film" INNER JOIN "core_object" ON ("core_film"."parent_id" = "core_object"."id") LEFT OUTER JOIN "core_objectlocalized" ON ("core_objectlocalized"."parent_id" = E\'core_film.parent_id\') LEFT OUTER JOIN "tagging_taggeditem" ON ("tagging_taggeditem"."object_id" = "core_objectlocalized"."id") LEFT OUTER JOIN "tagging_tag" ON ("tagging_tag"."id" = "tagging_taggeditem"."tag_id") WHERE "tagging_tag"."name" IN (E\'comedy\') AND "core_objectlocalized"."LANG"=E\'en\' AND content_type_id=E\'18\' ORDER BY E\'core_film.title\' </code></pre> <p>Problem is, that every place with <code>'E\'</code> generate error similar to this:</p> <pre><code>DatabaseError: invalid input syntax for integer: "core_film.parent_id" LINE 1: ...calized" ON ("core_objectlocalized"."parent_id" = E'core_fil... </code></pre> <p>How can I fix this?</p> <p>Django version 1.2.3.</p> <p><strong>edit</strong><br> I can't remove quotes, because I work with string:</p> <pre><code>result = self.function(result, tag, "core_film.parent_id") def function(self, objects, tags, film_id_string): </code></pre> <p>My params for RawQuerySet look like this:</p> <pre><code>params = {'film_id_string': film_id_string} </code></pre> <p>When I try to parse this I get:</p> <pre><code>LEFT OUTER JOIN "core_objectlocalized" ON ("core_objectlocalized"."parent_id" = E\'core_film.parent_id\') </code></pre> <p>and then I have problems with</p> <pre><code>DatabaseError: invalid input syntax for integer: "core_film.parent_id" LINE 1: ...calized" ON ("core_objectlocalized"."parent_id" = E'core_fil... </code></pre> <p>but, when I use string formatting</p> <pre><code>LEFT OUTER JOIN "core_objectlocalized" ON ("core_objectlocalized"."parent_id" = %s)' % film_id_string </code></pre> <p>it works:</p> <pre><code>LEFT OUTER JOIN "core_objectlocalized" ON ("core_objectlocalized"."parent_id" = core_film.parent_id) </code></pre> <p>I want to ommit posibility of SQL injection, so basing on <a href="http://docs.djangoproject.com/en/dev/topics/db/sql/#passing-parameters-into-raw" rel="nofollow noreferrer">Django docs</a> I don't want to pass params with string formatting.<br> What can I else do?</p>
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    1. COTry removing the single quotes from the values in the dictionary. That how it is in the old older post, and it seem that the database it trying to escape them which is what is causing the E\...\.
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    2. CO@solartic, thanks for suggestion. Partially I've removed quotes, but problem still exist. I've also added extra informations to my question.
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    3. CO@dasm Honestly that extra information is confusing me, but anyway the error to me is saying that an integer value is expected for "core_objectlocalized"."parent_id", and you are passing a string? In your last code block you use it as a variable and not as a sting which I guess works for you.
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