zhongrj
2025-11-25 b89962006164a462404b79a738bee8cbb6d7fe7e
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# -*- coding: utf-8 -*-
# Generated by Django 1.11.1 on 2017-11-30 15:41
from __future__ import unicode_literals
 
from django.db import migrations, models
import uuid, os, pickle, tempfile
 
from webodm import settings
 
tasks = []
task_ids = {} # map old task IDs --> new task IDs
 
def dump(apps, schema_editor):
    global tasks, task_ids
 
    Task = apps.get_model('app', 'Task')
 
    tasks = list(Task.objects.all().values('id', 'project'))
 
    # Generate UUIDs
    for task in tasks:
        new_id = uuid.uuid4()
 
        # Save reference to it
        task['new_id'] = new_id
 
        # Populate map
        task_ids[task['id']] = new_id
 
    tmp_path = os.path.join(tempfile.gettempdir(), "public_task_uuids_migration.pickle")
    pickle.dump((tasks, task_ids), open(tmp_path, 'wb'))
 
    if len(tasks) > 0: print("Dumped tasks")
 
 
class Migration(migrations.Migration):
 
    dependencies = [
        ('app', '0011_auto_20171109_1237'),
    ]
 
    operations = [
        migrations.AddField(
            model_name='task',
            name='public',
            field=models.BooleanField(default=False, help_text='A flag indicating whether this task is available to the public'),
        ),
 
        migrations.RunPython(dump),
 
        migrations.RemoveField(
            model_name='imageupload',
            name='task'
        ),
        migrations.AddField(
            model_name='task',
            name='new_id',
            field=models.UUIDField(null=True)
        ),
    ]