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add field to file model, add smigration script
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Original file line number | Diff line number | Diff line change |
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from django.db import connection, transaction | ||
from file.models import File | ||
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def migrate_files( | ||
target_project: int, | ||
dest_project: int, | ||
id_mapping: list[tuple[int, int]] | ||
): | ||
with transaction.atomic(): | ||
files = File.objects.filter(project_id=target_project) | ||
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assert files.update(project_id=dest_project, rebound_project=target_project), "No File to update" | ||
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update_attributes_query = """ | ||
update attribute_group_attribute | ||
set attribute_id = %s | ||
where attributegroup_id in %s and attribute_id = %s; | ||
""" | ||
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ag_id_list = tuple([ | ||
str(uid) for uid | ||
in files.values_list("attributegroup__uid", flat=True).distinct() | ||
]) | ||
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query_values = [ | ||
(dest_id, ag_id_list, target_id) | ||
for target_id, dest_id | ||
in id_mapping | ||
] | ||
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with connection.cursor() as cursor: | ||
cursor.executemany(update_attributes_query, query_values) |