from django.core import validators
from django.conf import settings

def is_allowed_name(slug, all_data):
    from bpcms.models import Document, Folder
    folder = None
    if all_data.has_key('folder'):
        folder = all_data['folder']
    elif all_data.has_key('parent'):
        folder = all_data['parent']
    if folder == u'':
        folder = None
    if folder == None:
        # right - we're at the root.
        if slug in settings.BPCMS_DISALLOWED_ROOT_DOC_NAMES \
            or slug in ['cms-admin']:
            raise validators.ValidationError(u'That slug is reserved')

def is_unique_name(slug, all_data):
    from bpcms.models import Document, Folder
    if all_data["folder"] != '' and all_data["id"] == '':
        folder_id = int(all_data["folder"])
        try:
            doc = Document.objects.get(folder__exact=folder_id, slug__exact=slug)
            raise validators.ValidationError(u'There is already a document with that name')
        except:
            pass

        try:
            folder = Folder.objects.get(slug__exact=slug, parent__exact=folder_id)
            raise validators.ValidationError(u'There is already a folder with that name')
        except:
            pass