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🐛 Prevent premature deletion of complimentary subscriptions on SQLite installs. #22178

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closes #22176

Development installs with SQLite store dates as epoch milliseconds. MySQL stores ISOStrings. The clean-expired-comps job, which is supposed to detect complimentary subscriptions that have expired, was erroneously comparing an ISOString to the SQLite field, which was epoch milliseconds. The result was premature removal of comp subscription that had not yet expired, but only on SQLite sites.

Kudos to Ravn on the Ghost forum for helping to identify the behavior! (Ref: https://forum.ghost.org/t/bulk-creation-of-comped-users-via-admin-api-expiration-issue-after-approx-15-hours/55244/7 )

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coderabbitai bot commented Feb 13, 2025

Walkthrough

The code update introduces a new dependency, DatabaseInfo, to enable conditional database handling. The cleanup job now checks if the underlying database is MySQL using DatabaseInfo.isMySQL(db.knex). When the database is MySQL, the query for expired complimentary subscriptions continues to use the expiry_at field compared to the current day's start in UTC. For other database types, the query uses the timestamp value obtained by the valueOf() method on the start of the day. Additionally, the expiredCompedRows variable is initialized as an empty array before the conditional logic. The modifications adjust the process of identifying and processing expired subscriptions based on the underlying database system while maintaining the overall structure of the cleanup job.

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Actionable comments posted: 0

🧹 Nitpick comments (2)
ghost/core/core/server/services/members/jobs/clean-expired-comped.js (2)

35-44: Core fix looks good! Consider adding error handling.

The implementation correctly handles the date format differences between MySQL and SQLite, fixing the premature deletion issue. However, consider these improvements:

  1. Add error handling for database detection
  2. Add comments explaining the date format differences
 let expiredCompedRows = [];
+// MySQL stores dates in ISOString format while SQLite uses epoch milliseconds
+// This conditional ensures correct date comparison for each database type
 if (DatabaseInfo.isMySQL(db.knex)) {
+    try {
         expiredCompedRows = await db.knex('members_products')
             .where('expiry_at', '<', moment.utc().startOf('day').toISOString())
             .select('*');
+    } catch (error) {
+        debug('Failed to query expired comped subscriptions: ', error);
+        throw error;
+    }
 } else {
+    try {
         expiredCompedRows = await db.knex('members_products')
             .where('expiry_at', '<', moment.utc().startOf('day').valueOf())
             .select('*');
+    } catch (error) {
+        debug('Failed to query expired comped subscriptions: ', error);
+        throw error;
+    }
 }

52-97: Add error handling for cleanup operations.

While the cleanup logic is solid, consider adding error handling for the critical operations to ensure graceful failure and proper logging.

 if (expiredCompedRows?.length) {
+    try {
         const rowIds = expiredCompedRows.map(d => d.id);
         const memberIds = expiredCompedRows.map(d => d.member_id);

         // Delete all expired comped rows
         deletedExpiredSubs = await db.knex('members_products')
             .whereIn('id', rowIds)
             .del();

         // fetch all comped members to update
         const membersToUpdate = await db.knex('members')
             .whereIn('id', memberIds)
             .andWhere('status', 'comped');

         const updateMemberIds = membersToUpdate.map(d => d.id);

         // Update all comped members to free
         updatedMembers = await db.knex('members')
             .whereIn('id', updateMemberIds)
             .update({
                 status: 'free'
             });

         const statusEvents = membersToUpdate.map((member) => {
             const now = db.knex.raw('CURRENT_TIMESTAMP');

             return {
                 id: ObjectId().toHexString(),
                 member_id: member.id,
                 from_status: member.status,
                 to_status: 'free',
                 created_at: now
             };
         });

         // SQLite >= 3.32.0 can support 32766 host parameters
         // each row uses 5 variables so ⌊32766/5⌋ = 6553
         const chunkSize = 6553;

         const chunks = chunkArray(statusEvents, chunkSize);

         // Adds status event for members going comped->free
         for (const chunk of chunks) {
             await db.knex('members_status_events').insert(chunk);
         }
+    } catch (error) {
+        debug('Failed during cleanup operations: ', error);
+        throw error;
+    }
 }
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📒 Files selected for processing (1)
  • ghost/core/core/server/services/members/jobs/clean-expired-comped.js (2 hunks)
⏰ Context from checks skipped due to timeout of 90000ms (7)
  • GitHub Check: Ghost-CLI tests
  • GitHub Check: Unit tests (Node 20.11.1)
  • GitHub Check: Database tests (Node 20.11.1, sqlite3)
  • GitHub Check: Regression tests (Node 20.11.1, sqlite3)
  • GitHub Check: Database tests (Node 20.11.1, mysql8)
  • GitHub Check: Regression tests (Node 20.11.1, mysql8)
  • GitHub Check: Database tests (Node 18.12.1, mysql8)
🔇 Additional comments (1)
ghost/core/core/server/services/members/jobs/clean-expired-comped.js (1)

6-6: LGTM! Appropriate dependency added for database type detection.

The addition of DatabaseInfo is a good solution for handling database-specific date format differences.

Comment on lines +36 to +44
if (DatabaseInfo.isMySQL(db.knex)) {
expiredCompedRows = await db.knex('members_products')
.where('expiry_at', '<', moment.utc().startOf('day').toISOString())
.select('*');
} else {
expiredCompedRows = await db.knex('members_products')
.where('expiry_at', '<', moment.utc().startOf('day').valueOf())
.select('*');
}
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@cathysarisky I think it could be useful to leave a comment here explaining why we need to do this

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We could also maybe reduce a little duplication here:

const expiryDate = DatabaseInfo.isMySQL(db.knex) 
    ? moment.utc().startOf('day').toISOString()
    : moment.utc().startOf('day').valueOf();

const expiredCompedRows = await db.knex('members_products')
        .where('expiry_at', '<', expiryDate)
        .select('*');

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Would you mind adding a test that verifies this change does what is intended? It looks like there isn't much coverage around this area, but this may be a good reference to base the test on

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An alternative: fix the root problem, which is that this field is stored differently than other sqlite dates:

const expiry = product.expiry_at ? new Date(product.expiry_at) : null;

If that were const expiry = product.expiry_at ? new Date(product.expiry_at).toISOString().slice(0, 19).replace('T', ' ') : null; (or the equivalent with moment?), what goes into SQLite would match what's already happening in MySQL, and the bug would disappear. Thoughts?

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SQLite comp subscriptions deleted when not expired
2 participants