"""
'fix' calculated fields
"""
from django.core import  meta
from django.core.template import loader
from django.core.extensions import get_object_or_404
from django.views.auth.login import redirect_to_login

from zilbo.common.utils.views.filter import object_list
from zilbo.common.utils.views.create_update import create_audit_object
#from django.models.tags import bookmarks


def bookmark_list(request, app_label, module_name, paginate_by=None, allow_empty=False,
                template_name=None, template_loader=loader, login_required=False,
                extra_lookup_kwargs=None, extra_context=None):
 
    if login_required and request.user.is_anonymous():
        return redirect_to_login(request.path)
    if extra_lookup_kwargs is None: extra_lookup_kwargs = {}
    if extra_context is None: extra_context = {}    
    extra_lookup_kwargs['where'] = [ 'user_id = %d' % request.user.id]
    return object_list(request, app_label, module_name, paginate_by, allow_empty,
                template_name, template_loader,
                extra_lookup_kwargs, extra_context)

def create_bookmark(request, app_label, module_name, 
                 content_type_id, object_id,
                 template_name=None,
                 template_loader=loader, extra_context=None,
                 post_save_redirect=None, login_required=False, follow=None):
    """
    bookmark-creation function. (with audit trail)
    """

    if login_required and request.user.is_anonymous():
        return redirect_to_login(request.path)
    if extra_context is None: 
        extra_context = {} 
    else:
        extra_context = extra_context.copy()
        
    contenttypes_mod = meta.get_module('core', 'contenttypes')
    c_obj = get_object_or_404(contenttypes_mod, pk=content_type_id )
    obj = get_object_or_404(c_obj.get_model_module(), pk=object_id )
 
    if request.POST:
        new_data = request.POST.copy()
        new_data['content_type'] =  str( c_obj.id)
        new_data['object_id'] =  str(obj.id)
        new_data['user'] =  str(request.user.id)
        new_data['headline'] =  str(obj)
        request._post = new_data

    extra_context['content_type'] =  c_obj.id
    extra_context['object_id'] =  obj.id
    extra_context['object'] =  obj
    extra_context['headline'] =  str(obj)
    return create_audit_object(request, app_label, module_name, template_name, 
                               template_loader, extra_context, post_save_redirect, 
                               login_required, follow)