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49 lines
1.8 KiB
Python
49 lines
1.8 KiB
Python
from django.db import migrations
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from django.db.backends.postgresql_psycopg2.schema import DatabaseSchemaEditor
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from django.db.migrations.state import StateApps
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import ujson
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from typing import Dict, List
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def move_to_seperate_table(apps: StateApps, schema_editor: DatabaseSchemaEditor) -> None:
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UserProfile = apps.get_model('zerver', 'UserProfile')
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AlertWord = apps.get_model('zerver', 'AlertWord')
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for user_profile in UserProfile.objects.all():
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list_of_words = ujson.loads(user_profile.alert_words)
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# Remove duplicates with our case-insensitive model.
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word_dict: Dict[str, str] = {}
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for word in list_of_words:
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word_dict[word.lower()] = word
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AlertWord.objects.bulk_create(
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AlertWord(user_profile=user_profile, word=word, realm=user_profile.realm)
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for word in word_dict.values()
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)
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def move_back_to_user_profile(apps: StateApps, schema_editor: DatabaseSchemaEditor) -> None:
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AlertWord = apps.get_model('zerver', 'AlertWord')
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UserProfile = apps.get_model('zerver', 'UserProfile')
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user_ids_and_words = AlertWord.objects.all().values("user_profile_id", "word")
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user_ids_with_words: Dict[int, List[str]] = dict()
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for id_and_word in user_ids_and_words:
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user_ids_with_words.setdefault(id_and_word["user_profile_id"], [])
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user_ids_with_words[id_and_word["user_profile_id"]].append(id_and_word["word"])
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for (user_id, words) in user_ids_with_words.items():
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user_profile = UserProfile.objects.get(id=user_id)
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user_profile.alert_words = ujson.dumps(words)
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user_profile.save(update_fields=['alert_words'])
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class Migration(migrations.Migration):
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dependencies = [
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('zerver', '0276_alertword'),
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]
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operations = [
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migrations.RunPython(move_to_seperate_table, move_back_to_user_profile, elidable=True)
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]
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