import ox
import json

def load(data_json):

    def reset_table(table_name):
        cursor = connection.cursor()
        sql = "select setval('%s_id_seq', 1, false)" % table_name
        cursor.execute(sql)

    from django.db import connection, transaction
    import item.models as models
    import archive.models
    import os
    archive.models.File.objects.all().delete()
    archive.models.Instance.objects.all().delete()
    archive.models.Volume.objects.all().delete()
    models.Item.objects.all().delete()
    reset_table(archive.models.File._meta.db_table)
    reset_table(archive.models.Instance._meta.db_table)
    reset_table(archive.models.Volume._meta.db_table)
    reset_table(models.Item._meta.db_table)
    transaction.commit_unless_managed()
    os.system('rm -r /srv/pandora/data/files')
    os.system('rm -r /srv/pandora/data/items')

    films = json.load(open(data_json))
    for data in films:
        item = models.Item()
        item.data = data
        item.save()
        item.make_poster(True)
        item.make_icon()
        item.level = 2
        item.save()
        print item

if __name__ == '__main__':
    print 'please import from ./manage.py and run import_json.load(path_to_json)'