Haystack incompatible with Django 1.4?

Question

I just upgradated my django to 1.4. I am getting trouble with haystack app. Also, I tried to update haystack to last stable version but I still having problems. Does anyone had theses errors? How can I solve it?

I am getting the following errors.

When I access any page:

cannot import name MAX_SHOW_ALL_ALLOWED haystack\admin.py in <module>, line 2

and

# python manage.py rebuild_index
django.core.exceptions.ImproperlyConfigured: Error importing template source loader
django.template.loaders.app_directories.load_template_source:
    "'module' object has no attri bute 'load_template_source'"

Thanks

score 6 · Accepted Answer · edited Apr 04 '12 at 06:58

6

there is a problem in haystack/admin.py file. Try to do the following:

remove import for MAX_SHOW_ALL_ALLOWED

before class SearchChangeList add method:

def list_max_show_all(changelist):
    """
    Returns the maximum amount of results a changelist can have for the
    "Show all" link to be displayed in a manner compatible with both Django
    1.4 and 1.3. See Django ticket #15997 for details.
    """
    try:
        # This import is available in Django 1.3 and below
        from django.contrib.admin.views.main import MAX_SHOW_ALL_ALLOWED
        return MAX_SHOW_ALL_ALLOWED
    except ImportError:
        return changelist.list_max_show_all

in SearchChangeList.get_results() change can_show_all to

can_show_all = result_count <= list_max_show_all(self)

Check this thread for more background info on the issue.

edited Apr 04 '12 at 06:58

mac

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answered Apr 01 '12 at 06:55

szaman

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This requires modifying haystack though :( – Geekfish Apr 03 '12 at 11:09
But the link I put in the answer is the fork with this solution. – szaman Apr 04 '12 at 05:57
Thats a pity that this code still in the branch (wasnt commited to last release). – Thomas Apr 04 '12 at 11:54
1

@szaman Forks are for submitting pull requests for fixes most of the time, not for using in a production environment. That is a problem for projects that cannot afford to use modified/forked versions of 3rd party modules. Hopefully v2.7 will be released soon. – Geekfish Apr 04 '12 at 14:05
6

Note that this change is included in Haystack 1.2.7. – Brian Neal May 03 '12 at 00:58
Very timely. Thanks @BrianNeal. – bmelton May 03 '12 at 02:35

Haystack incompatible with Django 1.4?

1 Answers1