I have 2 models:
Companies and Tags.
A company may have several tags associated with it, so Tag contains many-to-many relation to Company.
If i'd like to get Tags starting with "A" i'd write:
tags = Tag.objects.filter(name__startswith='A').order_by('name').all()
But how do i get the list of tags (beginning with letter 'A') which are associated with at least 1 company ?
In sql it would be something like:
SELECT * FROM
tag
WHERE
name LIKE 'A%' AND id IN (SELECT tag_id FROM tag_organization)
?
-- Companies and Tags.
A company may have several tags associated with it, so Tag contains many-to-many relation to Company.
If i'd like to get Tags starting with "A" i'd write:
tags = Tag.objects.filter(name__startswith='A').order_by('name').all()
But how do i get the list of tags (beginning with letter 'A') which are associated with at least 1 company ?
In sql it would be something like:
SELECT * FROM
tag
WHERE
name LIKE 'A%' AND id IN (SELECT tag_id FROM tag_organization)
?
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