zan.dev
forked from
tangled.org/core
Monorepo for Tangled — https://tangled.org
appview/db: migrations for issues
anirudh.fi
+62
appview/db/migrations/20250305_113405.sql
+62
appview/db/migrations/20250305_113405.sql
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-- Simplified SQLite Database Migration Script for Issues and Comments
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-- Migration for issues table
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CREATE TABLE issues_new (
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id integer primary key autoincrement,
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owner_did text not null,
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repo_at text not null,
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issue_id integer not null,
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title text not null,
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body text not null,
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open integer not null default 1,
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created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
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issue_at text,
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unique(repo_at, issue_id),
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foreign key (repo_at) references repos(at_uri) on delete cascade
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);
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-- Migrate data to new issues table
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INSERT INTO issues_new (
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id, owner_did, repo_at, issue_id,
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title, body, open, created, issue_at
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)
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SELECT
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id, owner_did, repo_at, issue_id,
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title, body, open, created, issue_at
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FROM issues;
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-- Drop old issues table
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DROP TABLE issues;
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-- Rename new issues table
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ALTER TABLE issues_new RENAME TO issues;
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-- Migration for comments table
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CREATE TABLE comments_new (
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id integer primary key autoincrement,
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owner_did text not null,
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issue_id integer not null,
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repo_at text not null,
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comment_id integer not null,
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comment_at text not null,
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body text not null,
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created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
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unique(issue_id, comment_id),
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foreign key (repo_at, issue_id) references issues(repo_at, issue_id) on delete cascade
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);
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-- Migrate data to new comments table
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INSERT INTO comments_new (
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id, owner_did, issue_id, repo_at,
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comment_id, comment_at, body, created
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)
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SELECT
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id, owner_did, issue_id, repo_at,
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comment_id, comment_at, body, created
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FROM comments;
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-- Drop old comments table
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DROP TABLE comments;
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-- Rename new comments table
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ALTER TABLE comments_new RENAME TO comments;
+66
appview/db/migrations/validate.sql
+66
appview/db/migrations/validate.sql
···
···
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-- Validation Queries for Database Migration
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-- 1. Verify Issues Table Structure
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PRAGMA table_info(issues);
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-- 2. Verify Comments Table Structure
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PRAGMA table_info(comments);
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-- 3. Check Total Row Count Consistency
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SELECT
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'Issues Row Count' AS check_type,
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(SELECT COUNT(*) FROM issues) AS row_count
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UNION ALL
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SELECT
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'Comments Row Count' AS check_type,
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(SELECT COUNT(*) FROM comments) AS row_count;
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-- 4. Verify Unique Constraint on Issues
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SELECT
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repo_at,
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issue_id,
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COUNT(*) as duplicate_count
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FROM issues
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GROUP BY repo_at, issue_id
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HAVING duplicate_count > 1;
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-- 5. Verify Foreign Key Integrity for Comments
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SELECT
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'Orphaned Comments' AS check_type,
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COUNT(*) AS orphaned_count
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FROM comments c
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LEFT JOIN issues i ON c.repo_at = i.repo_at AND c.issue_id = i.issue_id
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WHERE i.id IS NULL;
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-- 6. Check Foreign Key Constraint
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PRAGMA foreign_key_list(comments);
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-- 7. Sample Data Integrity Check
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SELECT
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'Sample Issues' AS check_type,
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repo_at,
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issue_id,
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title,
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created
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FROM issues
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LIMIT 5;
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-- 8. Sample Comments Data Integrity Check
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SELECT
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'Sample Comments' AS check_type,
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repo_at,
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issue_id,
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comment_id,
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body,
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created
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FROM comments
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LIMIT 5;
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-- 9. Verify Constraint on Comments (Issue ID and Comment ID Uniqueness)
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SELECT
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issue_id,
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comment_id,
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COUNT(*) as duplicate_count
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FROM comments
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GROUP BY issue_id, comment_id
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HAVING duplicate_count > 1;