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Fix PostgreSQL compatibility in migrations

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- tasks.0002_initial: Remove duplicate user field on Tag model
- tasks.0005_fix_tasks_tags_table: Add PostgreSQL/MySQL/SQLite support
  - Use SERIAL instead of AUTOINCREMENT for PostgreSQL
  - Use UUID type for foreign keys in PostgreSQL
- tasks.0006_fix_task_shares_table: Add PostgreSQL/MySQL/SQLite support
  - Use UUID type and TIMESTAMP in PostgreSQL
  - Use CHAR(32) and DATETIME in MySQL/SQLite

These migrations now detect the database backend and use appropriate
syntax for each database type.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
This commit is contained in:
Keith Smith
2025-12-26 17:05:33 -07:00
co-authored by Claude Sonnet 4.5
parent 4e903b688d
commit 0cb1e9508f
2 changed files with 115 additions and 31 deletions
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tasks/migrations/0006_fix_task_shares_table.py
+72 -20
View File
@@ -10,30 +10,82 @@ def fix_task_shares_table(apps, schema_editor):
"""
db_alias = schema_editor.connection.alias
# Check database type
is_postgres = schema_editor.connection.vendor == 'postgresql'
is_mysql = schema_editor.connection.vendor == 'mysql'
# Drop and recreate the task_shares table with correct foreign keys
schema_editor.execute(
"DROP TABLE IF EXISTS task_shares;"
"DROP TABLE IF EXISTS task_shares CASCADE;" if is_postgres else "DROP TABLE IF EXISTS task_shares;"
)
schema_editor.execute(
"""
CREATE TABLE task_shares (
id CHAR(32) NOT NULL PRIMARY KEY,
permission VARCHAR(20) NOT NULL,
sync_id CHAR(32) NOT NULL UNIQUE,
created_at DATETIME NOT NULL,
updated_at DATETIME NOT NULL,
owner_id CHAR(32) NOT NULL REFERENCES users(id) DEFERRABLE INITIALLY DEFERRED,
shared_with_id CHAR(32) NOT NULL REFERENCES users(id) DEFERRABLE INITIALLY DEFERRED,
task_id CHAR(32) NULL REFERENCES tasks(id) ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED,
tag_id CHAR(32) NULL REFERENCES tags(id) ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED,
CONSTRAINT share_task_or_tag_not_both CHECK (
(tag_id IS NULL AND task_id IS NOT NULL) OR
(tag_id IS NOT NULL AND task_id IS NULL)
)
);
"""
)
if is_postgres:
# PostgreSQL syntax
schema_editor.execute(
"""
CREATE TABLE task_shares (
id UUID NOT NULL PRIMARY KEY,
permission VARCHAR(20) NOT NULL,
sync_id UUID NOT NULL UNIQUE,
created_at TIMESTAMP NOT NULL,
updated_at TIMESTAMP NOT NULL,
owner_id UUID NOT NULL REFERENCES users(id) DEFERRABLE INITIALLY DEFERRED,
shared_with_id UUID NOT NULL REFERENCES users(id) DEFERRABLE INITIALLY DEFERRED,
task_id UUID NULL REFERENCES tasks(id) ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED,
tag_id UUID NULL REFERENCES tags(id) ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED,
CONSTRAINT share_task_or_tag_not_both CHECK (
(tag_id IS NULL AND task_id IS NOT NULL) OR
(tag_id IS NOT NULL AND task_id IS NULL)
)
);
"""
)
elif is_mysql:
# MySQL/MariaDB syntax
schema_editor.execute(
"""
CREATE TABLE task_shares (
id CHAR(32) NOT NULL PRIMARY KEY,
permission VARCHAR(20) NOT NULL,
sync_id CHAR(32) NOT NULL UNIQUE,
created_at DATETIME NOT NULL,
updated_at DATETIME NOT NULL,
owner_id CHAR(32) NOT NULL,
shared_with_id CHAR(32) NOT NULL,
task_id CHAR(32) NULL,
tag_id CHAR(32) NULL,
CONSTRAINT share_task_or_tag_not_both CHECK (
(tag_id IS NULL AND task_id IS NOT NULL) OR
(tag_id IS NOT NULL AND task_id IS NULL)
),
FOREIGN KEY (owner_id) REFERENCES users(id),
FOREIGN KEY (shared_with_id) REFERENCES users(id),
FOREIGN KEY (task_id) REFERENCES tasks(id) ON DELETE CASCADE,
FOREIGN KEY (tag_id) REFERENCES tags(id) ON DELETE CASCADE
);
"""
)
else:
# SQLite syntax (default)
schema_editor.execute(
"""
CREATE TABLE task_shares (
id CHAR(32) NOT NULL PRIMARY KEY,
permission VARCHAR(20) NOT NULL,
sync_id CHAR(32) NOT NULL UNIQUE,
created_at DATETIME NOT NULL,
updated_at DATETIME NOT NULL,
owner_id CHAR(32) NOT NULL REFERENCES users(id) DEFERRABLE INITIALLY DEFERRED,
shared_with_id CHAR(32) NOT NULL REFERENCES users(id) DEFERRABLE INITIALLY DEFERRED,
task_id CHAR(32) NULL REFERENCES tasks(id) ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED,
tag_id CHAR(32) NULL REFERENCES tags(id) ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED,
CONSTRAINT share_task_or_tag_not_both CHECK (
(tag_id IS NULL AND task_id IS NOT NULL) OR
(tag_id IS NOT NULL AND task_id IS NULL)
)
);
"""
)
# Create indexes for foreign keys
schema_editor.execute(