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♻️ Update database relational model #1466

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@lukevella lukevella commented Dec 22, 2024

Summary by CodeRabbit

Release Notes

  • New Features

    • Introduced a guest user management system, allowing for the creation of guest user entries in various components.
    • Enhanced error handling during Stripe checkout to ensure valid email presence.
    • Updated logic for retrieving user counts to exclude guest users.
    • Improved handling of participant and comment creation by linking to existing users or creating guest users.
    • Enhanced logic for determining organizer details in calendar events.
  • Bug Fixes

    • Simplified the removal of deleted polls in the housekeeping workflow.
    • Enhanced logic for sending email notifications to ensure valid email addresses are used.
  • Database Changes

    • Updated user schema to allow optional name and email fields, and added an is_guest column.
    • Implemented migrations to clean up orphaned records and enforce data integrity.
    • Added functionality to create guest user entries for participants and comments lacking user associations.
    • Modified foreign key constraints to allow for cascading updates and nullification on deletion.
  • Documentation

    • Updated internal documentation to reflect changes in user management and database schema.

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Walkthrough

This pull request introduces comprehensive changes to user management, database schema, and data handling across multiple components of the application. The modifications focus on enhancing guest user functionality, improving data integrity, and streamlining database operations. Key changes include making user name and email optional, introducing an isGuest flag, updating migration scripts to handle guest users, and refactoring various routers and components to support these new user management strategies.

Changes

File/Path Change Summary
.github/workflows/house-keeping.yml Simplified curl command by removing data payload for poll deletion
apps/landing/src/components/home/bonus.tsx Updated user count to exclude guest users
apps/web/src/app/[locale]/poll/[urlId]/guest-poll-alert.tsx Removed poll context dependency
apps/web/src/app/api/house-keeping/[task]/route.ts Simplified poll deletion logic
apps/web/src/app/api/stripe/checkout/route.ts Added email validation before checkout
apps/web/src/auth/merge-user.ts Implemented database transaction for merging guest users
apps/web/src/components/poll/scheduled-event.tsx Enhanced organizer details validation
apps/web/src/trpc/routers/polls.ts Improved user connection and email notification logic
apps/web/src/trpc/routers/polls/comments.ts Updated comment creation with nested connections
apps/web/src/trpc/routers/polls/participants.ts Enhanced participant creation and email notification
apps/web/src/trpc/routers/user.ts Simplified user deletion process
apps/web/src/trpc/trpc.ts Added user onboarding status validation
packages/database/prisma/schema.prisma Made name/email optional, added isGuest flag
packages/database/prisma/migrations/20241216173316_make_name_email_optional/migration.sql Modified "users" table to allow NULL for name and email
packages/database/prisma/migrations/20241216173702_add_is_guest_column/migration.sql Added "is_guest" column to "users" table
packages/database/prisma/migrations/20241217102725_create_guest_users/migration.sql Migrated missing user records into "users" table
packages/database/prisma/migrations/20241217113050_remove_orphaned_rows/migration.sql Cleaned up orphaned records in multiple tables
packages/database/prisma/migrations/20241218114601_update_relation_mode/migration.sql Updated indexes and foreign key constraints across tables
packages/database/prisma/migrations/20241218160237_create_guest_users/migration.sql Created guest user entries for participants and comments without associated user IDs
packages/database/prisma/migrations/20241219171129_update_constraints/migration.sql Enforced NOT NULL constraints on user_id in comments and participants
apps/web/src/components/poll/mutations.ts Modified participant mutation to enhance data structure
packages/database/prisma/seed.ts Updated participant creation logic to associate users with polls
apps/web/src/app/api/stripe/webhook/route.ts Removed user subscription ID update on deletion event
packages/database/prisma/migrations/20241222105146_update_susubscription_delete/migration.sql Modified foreign key constraint for subscription_id in users table

Sequence Diagram

sequenceDiagram
    participant User
    participant AuthSystem
    participant Database
    participant PollSystem

    User->>AuthSystem: Attempt to create/interact with poll
    AuthSystem->>Database: Check user details
    alt User is not fully onboarded
        AuthSystem-->>User: Throw onboarding error
    else User is valid
        AuthSystem->>Database: Create/Update user
        Database-->>AuthSystem: User created/updated
        AuthSystem->>PollSystem: Allow poll interaction
    end
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Actionable comments posted: 7

🔭 Outside diff range comments (1)
apps/web/src/components/poll/scheduled-event.tsx (1)

Line range hint 119-121: Improve null safety in guests mapping

The code assumes email is non-null after filtering, but uses non-null assertion (!). This can be improved.

               guests={attendees
                 .filter((participant) => !!participant.email)
-                .map((participant) => participant.email!)}
+                .map((participant) => participant.email)}
🧰 Tools
🪛 Biome (1.9.4)

[error] 115-115: Change to an optional chain.

Unsafe fix: Change to an optional chain.

(lint/complexity/useOptionalChain)

🧹 Nitpick comments (14)
apps/web/src/auth/merge-user.ts (2)

30-39: Include error handling or logs for comment updates
While updating comments is likely straightforward, consider adding a conditional check or logs to confirm that the number of updated comment records matches the number of guestIds expected. This helps detect potential data discrepancies or anomalies.


41-41: Ensure concurrency safety for Promise.all
Using Promise.all for these simultaneous updates is a good approach. Any failures will be caught by the wrapping transaction. However, ensure that each individual update’s outcome is correct (e.g., verifying update counts). A rollback will occur upon error, but logging partial progress can aid debugging.

apps/web/src/trpc/trpc.ts (1)

47-50: Avoid repeated lookups for user data
Since ctx.user.id is already known, verifying whether the user has an email/name is necessary. However, if these fields are frequently used, consider augmenting the initial context with the user’s name/email to avoid repeated queries in subsequent procedures.

apps/web/src/trpc/routers/polls/comments.ts (1)

100-103: Avoid emailing watchers without addresses
Skipping watchers without an email is correct. You might also consider logging these cases if it helps with debugging or data quality improvements.

apps/web/src/trpc/routers/polls/participants.ts (1)

179-183: Optional email check
Skipping watchers who have no email is sensible. As with the comments router, you might maintain a debug log to track watchers lacking email addresses, to ensure data completeness.

packages/database/prisma/schema.prisma (1)

143-150: New poll relationships.
The code clarifies references to user, options, participants, watchers, comments, votes. This seems correct for the new structure.

To keep your schema more readable, consider grouping relationships by model or topic (e.g., watchers, comments, participants grouped).

apps/web/src/trpc/routers/polls.ts (1)

217-217: Consider optional chaining.
Static analysis suggests using optional chaining. Current code:
“if (user && user.email && user.name) { … }”
Optional chaining can simplify this, but confirm readability.

- if (user && user.email && user.name) {
+ if (user?.email && user?.name) {
🧰 Tools
🪛 Biome (1.9.4)

[error] 217-217: Change to an optional chain.

Unsafe fix: Change to an optional chain.

(lint/complexity/useOptionalChain)

packages/database/prisma/migrations/20241217102725_create_guest_users/migration.sql (1)

1-49: Add error handling and memory management

The script handles large datasets but lacks error handling and memory management considerations.

Consider these improvements:

 DO $$
 DECLARE
     batch_size INTEGER := 10000;
     total_rows INTEGER;
     offset_count INTEGER := 0;
+    v_error_count INTEGER := 0;
 BEGIN
+    SET work_mem = '256MB';  -- Adjust based on available memory
+    
     -- First create a temporary table with all distinct user_ids
     CREATE TEMP TABLE missing_users AS
     WITH all_users AS (...) 
     SELECT DISTINCT user_id
     FROM all_users a
     WHERE NOT EXISTS (...);

+    CREATE INDEX ON missing_users (user_id);
     
     -- Get the count
     SELECT COUNT(*) INTO total_rows FROM missing_users;
     
     RAISE NOTICE 'Starting migration of % missing users', total_rows;

     -- Process in batches
     WHILE offset_count < total_rows LOOP
+        BEGIN
             INSERT INTO users (id, is_guest, created_at)
             SELECT user_id as id, true as is_guest, NOW() as created_at
             FROM missing_users
             OFFSET offset_count
             LIMIT batch_size
             ON CONFLICT (id) DO NOTHING;
+        EXCEPTION WHEN OTHERS THEN
+            v_error_count := v_error_count + 1;
+            RAISE WARNING 'Error in batch starting at %: %', offset_count, SQLERRM;
+            IF v_error_count > 5 THEN
+                RAISE EXCEPTION 'Too many errors encountered during migration';
+            END IF;
+        END;

         -- Rest of the loop...
     END LOOP;

     RAISE NOTICE 'Migration complete. Processed % rows with % errors', offset_count, v_error_count;
+EXCEPTION WHEN OTHERS THEN
+    RAISE WARNING 'Migration failed: %', SQLERRM;
+    RAISE;
 END $$;

These changes:

  1. Add work_mem setting for better memory management
  2. Create an index on the temporary table
  3. Add error handling with a maximum error threshold
  4. Provide more detailed logging
packages/database/prisma/migrations/20241219171129_update_constraints/migration.sql (1)

26-39: Review cascade delete implications

The new foreign key constraints use ON DELETE CASCADE, which means deleting a user will automatically delete all related records. This could lead to unintended data loss.

Consider these implications:

  1. Deleting a user will delete their comments, events, watches, and participations
  2. Deleting a subscription will delete associated users and all their data

Consider implementing soft deletes for users or archiving important data before deletion.

apps/landing/src/components/home/bonus.tsx (1)

14-18: Consider caching the user count

The user count query runs on every page load and now includes a WHERE clause. Since this is displayed on the landing page and doesn't need real-time accuracy, consider caching the result.

+import { cache } from "@rallly/backend/cache";
+
+const CACHE_KEY = "registered-user-count";
+const CACHE_TTL = 3600; // 1 hour
+
 const userCount = await prisma.user.count({
   where: {
     isGuest: false,
   },
 });

Consider implementing caching:

const userCount = await cache.wrap(
  CACHE_KEY,
  async () => {
    return prisma.user.count({
      where: {
        isGuest: false,
      },
    });
  },
  CACHE_TTL
);
apps/web/src/app/api/house-keeping/[task]/route.ts (1)

5-5: Consider validating task parameter

The task parameter from the URL is used directly in a switch statement without validation.

+const VALID_TASKS = ['delete-inactive-polls', 'remove-deleted-polls'] as const;
+type ValidTask = typeof VALID_TASKS[number];
+
 export async function POST(_req: Request, ctx: { params: { task: string } }) {
   const headersList = headers();
   const authorization = headersList.get("authorization");
 
   if (authorization !== `Bearer ${process.env.API_SECRET}`) {
     return NextResponse.json(
       { success: false },
       {
         status: 401,
       },
     );
   }
 
+  if (!VALID_TASKS.includes(ctx.params.task as ValidTask)) {
+    return NextResponse.json(
+      { success: false, error: 'Invalid task' },
+      { status: 400 }
+    );
+  }
+
   switch (ctx.params.task) {

Also applies to: 23-23

packages/database/prisma/migrations/20241218114601_update_relation_mode/migration.sql (1)

16-21: Review the soft delete implementation

The new indexes on polls.deleted combined with touched_at and deleted_at suggest a soft delete pattern. This is a good practice for data recovery and audit trails.

Consider implementing similar soft delete patterns for related entities to maintain data consistency.

apps/web/src/components/poll/scheduled-event.tsx (1)

115-118: Simplify null checks with optional chaining

The current null checks can be simplified using optional chaining for better readability.

-                poll.user && poll.user.email && poll.user.name
+                poll.user?.email && poll.user?.name
                   ? { name: poll.user.name, email: poll.user.email }
                   : undefined
🧰 Tools
🪛 Biome (1.9.4)

[error] 115-115: Change to an optional chain.

Unsafe fix: Change to an optional chain.

(lint/complexity/useOptionalChain)

apps/web/src/trpc/routers/user.ts (1)

56-60: Standardize error handling across user operations

Consider implementing consistent error handling patterns across all user operations. Other procedures in this file (e.g., updatePreferences) include explicit guest user checks and error handling, but the delete mutation lacks similar safeguards.

Consider adding consistent error handling:

  1. Guest user validation
  2. Explicit error types
  3. Consistent error messages
 delete: privateProcedure.mutation(async ({ ctx }) => {
+  if (ctx.user.isGuest) {
+    throw new TRPCError({
+      code: "UNAUTHORIZED",
+      message: "Guest users cannot delete their account",
+    });
+  }
+
   await prisma.user.delete({
     where: {
       id: ctx.user.id,
     },
   });
+
+  return { success: true };
 }),
📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 5a4eb39 and 1b46326.

📒 Files selected for processing (20)
  • .github/workflows/house-keeping.yml (1 hunks)
  • apps/landing/src/components/home/bonus.tsx (1 hunks)
  • apps/web/src/app/[locale]/poll/[urlId]/guest-poll-alert.tsx (0 hunks)
  • apps/web/src/app/api/house-keeping/[task]/route.ts (3 hunks)
  • apps/web/src/app/api/stripe/checkout/route.ts (1 hunks)
  • apps/web/src/auth/merge-user.ts (1 hunks)
  • apps/web/src/components/poll/scheduled-event.tsx (1 hunks)
  • apps/web/src/trpc/routers/polls.ts (4 hunks)
  • apps/web/src/trpc/routers/polls/comments.ts (2 hunks)
  • apps/web/src/trpc/routers/polls/participants.ts (2 hunks)
  • apps/web/src/trpc/routers/user.ts (1 hunks)
  • apps/web/src/trpc/trpc.ts (3 hunks)
  • packages/database/prisma/migrations/20241216173316_make_name_email_optional/migration.sql (1 hunks)
  • packages/database/prisma/migrations/20241216173702_add_is_guest_column/migration.sql (1 hunks)
  • packages/database/prisma/migrations/20241217102725_create_guest_users/migration.sql (1 hunks)
  • packages/database/prisma/migrations/20241217113050_remove_orphaned_rows/migration.sql (1 hunks)
  • packages/database/prisma/migrations/20241218114601_update_relation_mode/migration.sql (1 hunks)
  • packages/database/prisma/migrations/20241218160237_create_guest_users/migration.sql (1 hunks)
  • packages/database/prisma/migrations/20241219171129_update_constraints/migration.sql (1 hunks)
  • packages/database/prisma/schema.prisma (6 hunks)
💤 Files with no reviewable changes (1)
  • apps/web/src/app/[locale]/poll/[urlId]/guest-poll-alert.tsx
✅ Files skipped from review due to trivial changes (1)
  • packages/database/prisma/migrations/20241216173702_add_is_guest_column/migration.sql
🧰 Additional context used
📓 Learnings (1)
apps/web/src/auth/merge-user.ts (1)
Learnt from: lukevella
PR: lukevella/rallly#1189
File: apps/web/src/utils/auth.ts:202-202
Timestamp: 2024-11-12T09:08:14.221Z
Learning: The `mergeGuestsIntoUser()` function in `apps/web/src/utils/auth.ts` is correctly awaited.
🪛 Biome (1.9.4)
apps/web/src/components/poll/scheduled-event.tsx

[error] 115-115: Change to an optional chain.

Unsafe fix: Change to an optional chain.

(lint/complexity/useOptionalChain)

apps/web/src/trpc/routers/polls.ts

[error] 217-217: Change to an optional chain.

Unsafe fix: Change to an optional chain.

(lint/complexity/useOptionalChain)

🔇 Additional comments (27)
apps/web/src/auth/merge-user.ts (3)

7-17: Good use of a single transaction to ensure atomic updates
Wrapping these updateMany operations in a transaction is an excellent way to maintain data integrity and avoid partial updates. This approach ensures that either all records are updated successfully or none are updated if something goes wrong.


43-49: Cascade-delete caution
Deleting guest users in the same transaction is valid only if all references have been updated. Ensure that there are no asynchronous triggers or constraints that might break this cascade. A final verification that no orphaned references remain is recommended.

✅ Verification successful

Let me analyze the context further by checking the merge-user code to understand how references are handled before deletion.


Safe to proceed with cascade deletion

The code is safe because:

  1. All foreign key references (polls, participants, comments) are properly updated to the new userId within the same transaction before deletion
  2. The latest migration (20241219171129) shows all user references have ON DELETE CASCADE, ensuring any remaining references would be automatically cleaned up
  3. The transaction ensures atomicity - either all updates and deletions succeed, or none do
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Confirm no orphaned records remain after deleting the guest user
# by searching for references that are not updated to userId
rg -A5 "FOREIGN KEY.*REFERENCES.*user" 

Length of output: 7811


Script:

#!/bin/bash
# Check the merge-user.ts file to see how references are handled
cat apps/web/src/auth/merge-user.ts

Length of output: 941


19-28: Consider verifying index usage on userId
Repeatedly updating records based on userId can be costly if the userId field is not indexed. Double-check that userId columns are indexed for poll, participant, and comment tables to avoid performance bottlenecks as data grows.

✅ Verification successful

Based on the Prisma schema and migration files analysis, I can now provide a definitive response about the indexing concern:

Indexes are properly configured for userId field
The codebase has appropriate indexes for the participant table's userId field through foreign key relationships. The schema shows that the participants table has a foreign key constraint with users table (participants_user_id_fkey), which automatically creates an index on the userId column. Additionally, the operation in merge-user.ts is using Prisma's updateMany, which will utilize this index efficiently.

Points of verification:

  • Foreign key constraint participants_user_id_fkey ensures index existence
  • Cascading delete setup (ON DELETE CASCADE) indicates proper index usage
  • The schema shows proper relationship mapping: user User @relation(fields: [userId], references: [id], onDelete: Cascade)
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Checking for indexes on columns named 'userId' in migrations or schema
rg -A 2 "index.*userId" 
ast-grep --pattern $'CREATE INDEX $_ ON $_ ( userId )'

Length of output: 81


Script:

#!/bin/bash
# Let's check Prisma schema files for userId field definitions and indexes
fd -e prisma | xargs cat

# Also check migration files for any index creation
fd -g "*migration*.sql" | xargs cat

Length of output: 48424

apps/web/src/trpc/trpc.ts (2)

52-57: Clear error message for incomplete user profile
Throwing "User is not fully onboarded" is helpful. Ensure this aligns with front-end handling so that users know they need to update their profile.


74-81: Updating isGuest to false
Overriding isGuest is beneficial. Make sure the front-end or other parts of the system are aware that the user who was previously a guest is now a fully signed-up user, as this can have downstream effects on user flows.

apps/web/src/trpc/routers/polls/comments.ts (1)

43-58: Robust connectOrCreate usage
Using “connectOrCreate” ensures that a comment can be associated with an existing user or automatically create a new guest user. This is a solid approach for handling partial or guest sessions.

apps/web/src/trpc/routers/polls/participants.ts (2)

98-113: Reuse user objects consistently with connectOrCreate
This pattern is consistent across the codebase and ensures guests are managed uniformly. Validate that the locale for the user is consistent or updated when they finally sign in.


115-118: Selective field retrieval
The changed select clause limits the data returned, which helps optimize performance and reduce payload size. Good job focusing on only the necessary fields.

packages/database/prisma/schema.prisma (10)

2-4: Data source configuration looks good.
This setup is aligned with standard Postgres usage for Prisma. Please verify that both “DATABASE_URL” and “DIRECT_DATABASE_URL” environment variables are properly set in all environments.


62-62: Participant relation verified.
The participants array in User is clearly referencing the Participant table. Looks consistent with the new guest user approach.


151-152: Added indices on poll deletion fields.
Looks helpful for queries. Ensure that your code indeed uses these filters effectively.


165-166: Event references user with cascade.
If a user is removed, events are also removed. Confirm if that is desirable.


177-179: Watcher references updated to cascade.
This enforces that watchers are removed if either the user or poll is deleted. This is likely correct for housekeeping.


188-199: Participant references updated with userId.
For guests, userId might point to a guest user record. Double-check that creating these references for guests without name/email is valid.


206-212: Option references updated to cascade on poll deletion.
This ensures that options do not linger after poll removal. Looks good if intended.


226-237: Vote references participant/poll with onDelete: Cascade.
Votes are now fully removed if a poll or participant is removed. This may be correct if preserving historical votes is not needed.


248-254: Comment references updated.
Comments will be removed alongside the poll or the user. Confirm if that’s the intended data lifecycle.


41-44: Optional fields and new boolean flag on User.
Making name/email optional and introducing "isGuest" is consistent with the given objectives. Ensure the logic that consumes these fields (throughout the codebase) accounts for undefined values.

Run the following script to see if the new optional user fields are handled safely everywhere:

✅ Verification successful

The previous pattern didn't yield results, so let's try a broader search to:

  1. Find files that reference the User model
  2. Look for direct field access patterns
  3. Search for Prisma client operations that might handle these fields

Based on the search results, I can now generate a final response as we have comprehensive evidence of how the optional fields and isGuest flag are handled throughout the codebase:

Optional user fields and guest status are properly handled throughout the codebase.
The codebase consistently handles optional name/email fields and the isGuest flag through:

  • Null checks before accessing email/name fields (e.g., if (user?.email && user?.name))
  • Guest status checks before protected operations (if (user.isGuest))
  • Fallback values when displaying user information (e.g., user.name ?? t("guest"))
  • Proper type handling in database operations and API responses

Key validations:

  • Authentication flows properly handle optional fields
  • Email notifications only sent when email exists
  • Protected routes/operations check for guest status
  • UI components gracefully handle missing name/email
  • Database operations safely handle null values
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Searching calls that reference User model fields
ast-grep --pattern $'User($_, { name: $$$ , email: $$$ , isGuest: $$$ })'

Length of output: 74


Script:

#!/bin/bash
# Let's try a broader search for User model usage patterns
rg -l "User\." --type ts --type js

# Then look for specific field access patterns
rg "\.name|\.email|\.isGuest" --type ts --type js -C 2

# Also search for Prisma client queries
rg "prisma.*user.*find|prisma.*user.*create|prisma.*user.*update" -i --type ts --type js -C 2

Length of output: 62722

apps/web/src/trpc/routers/polls.ts (2)

167-177: Using connectOrCreate for user references on poll creation.
This approach helps unify poll creation for returning visitors. However, if multiple concurrent poll creations occur for the same “ctx.user.id,” you risk potential race conditions. Consider using “connect” if you’re certain the user always exists, or ensure that collisions are properly handled.


Line range hint 704-809: Validate host’s email presence and PII usage.
Sending ICS attachments with user name/email is potentially sensitive. Ensure you’re not sending these details if the user or poll is confidential. Also watch concurrency on finalizing the poll if multiple threads finalize simultaneously.

Would you like a shell script to find all references to “poll.user.email” and confirm consistent usage?

packages/database/prisma/migrations/20241216173316_make_name_email_optional/migration.sql (1)

1-3: Dropping NOT NULL constraints.
This change supports guest users who lack name or email. Just confirm no other features implicitly assume these fields are non-null (e.g., unique index usage, foreign keys).

.github/workflows/house-keeping.yml (1)

21-21: Data payload removal from the remove-deleted-polls request.
Confirm the new API endpoint logic no longer requires a JSON payload. If incorrect, the request may silently fail.

packages/database/prisma/migrations/20241217102725_create_guest_users/migration.sql (1)

1-1: Verify migration execution order

The migrations are interdependent and should be executed in this order:

  1. 20241217102725_create_guest_users - Creates missing users
  2. 20241217113050_remove_orphaned_rows - Cleans up orphaned records
  3. 20241218160237_create_guest_users - Creates guest users for remaining records

Please ensure that the migration timestamps reflect this order to maintain data integrity.

packages/database/prisma/migrations/20241219171129_update_constraints/migration.sql (1)

1-7: Verify data integrity before migration

The migration will fail if there are NULL values in user_id columns. Ensure that all NULL values are handled before running this migration.

✅ Verification successful

Since we cannot directly query the database in the sandbox environment, let me analyze the codebase to understand the context better and look for any related migrations or schema changes.


Based on the schema.prisma file, I can now generate the final response since I have enough context to understand the data model:

Migration is safe to proceed

The schema shows that both user_id columns in comments and participants tables are already marked as required (no ? modifier in the schema), and they have existing foreign key relationships with cascade delete enabled. This indicates that:

  1. The schema is already enforcing non-null constraints
  2. The migration is likely aligning the database with the existing schema definition
  3. The foreign key relationships ensure referential integrity
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check for NULL user_id values that would cause migration failure
echo "Checking for NULL user_id values in comments table..."
echo 'SELECT COUNT(*) FROM "comments" WHERE "user_id" IS NULL;' | psql $DATABASE_URL

echo "Checking for NULL user_id values in participants table..."
echo 'SELECT COUNT(*) FROM "participants" WHERE "user_id" IS NULL;' | psql $DATABASE_URL

Length of output: 581


Script:

#!/bin/bash
# Look for previous migrations that might have handled NULL values
fd . "prisma/migrations" --type f -e sql -x cat {} \; | grep -B2 -A2 "user_id"

# Check schema.prisma for related models
fd "schema.prisma" --type f -x cat {}

Length of output: 8397

packages/database/prisma/migrations/20241218114601_update_relation_mode/migration.sql (2)

1-15: Verify query performance after dropping user_id indexes

The removal of user_id indexes might impact query performance on these tables. Ensure that these columns are not frequently used in WHERE clauses or JOIN conditions.

Consider monitoring query performance in production after this change.

✅ Verification successful

The previous search might have been too specific. Let's broaden our search to:

  1. Find all occurrences of user_id to understand its usage
  2. Look for Prisma query patterns that might use these fields
  3. Examine the Prisma schema to understand the relationships and indexes

Dropping user_id indexes is safe - Foreign keys provide implicit indexing

Based on the analysis of the Prisma schema and codebase:

  1. All tables with dropped user_id indexes (accounts, comments, events, polls, watchers) have foreign key constraints to the users table, which automatically creates an implicit index on the foreign key column.
  2. The queries found in the codebase primarily use:
    • Direct lookups through foreign key relationships (e.g., user User @relation(fields: [userId], references: [id]))
    • Queries with proper joins through Prisma's relational queries
  3. The schema shows proper cascade delete behaviors (e.g., onDelete: Cascade) which maintain referential integrity.

The removal of these explicit indexes won't impact performance as PostgreSQL automatically creates indexes for foreign key constraints, making these explicit indexes redundant.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for queries using user_id in WHERE/JOIN conditions
rg -A 2 "where.*user_id|join.*user_id" --type ts

Length of output: 50


Script:

#!/bin/bash
# Let's try a broader search for user_id in TypeScript files
rg "user_id" --type ts -B 2 -A 2

# Also search for Prisma query patterns
rg "findMany|findFirst|findUnique.*where" --type ts -B 2 -A 2

# Check Prisma schema for these relations
fd "schema.prisma" --exec cat {}

Length of output: 13305


22-59: Review cascade delete behaviors

The foreign key constraints use different ON DELETE behaviors:

  • RESTRICT: accounts, events, watchers (user_id)
  • SET NULL: users->subscriptions, polls->events, comments->user_id
  • CASCADE: polls->users, watchers->polls, participants->polls, options->polls, votes->participants, votes->polls, comments->polls

This pattern appears intentional:

  • Core user data (accounts, events) uses RESTRICT to prevent accidental deletions
  • Optional relationships use SET NULL
  • Child entities use CASCADE for cleanup
✅ Verification successful

Let me gather more information about the database schema and any soft delete implementations to ensure the cascade behaviors are properly handled.


The cascade delete behaviors are correctly implemented and aligned with the application's data model

After reviewing the schema.prisma and the delete operations in the codebase, the cascade delete behaviors are well-designed and properly implemented:

  • RESTRICT on user_id for accounts/events/watchers prevents orphaned authentication data and core user content
  • SET NULL for optional relationships (subscriptions, events, comments->user) allows graceful handling of deleted parent records
  • CASCADE for poll-related entities (options, votes, participants, watchers, comments) ensures proper cleanup of poll data

The schema also implements soft delete for polls (deleted and deletedAt fields) with proper cleanup through house-keeping tasks, providing an additional safety layer.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for delete operations to ensure they handle these constraints
rg -A 5 "delete.*from|deleteMany|deleteOne" --type ts

Length of output: 2851


Script:

#!/bin/bash
# Check schema.prisma for table definitions and soft delete fields
rg -A 10 "model.*{" packages/database/prisma/schema.prisma

# Check for soft delete implementations
rg -A 5 "deleted.*=.*true|softDelete" --type ts

Length of output: 659


Script:

#!/bin/bash
# Check schema.prisma with proper pattern
cat packages/database/prisma/schema.prisma

# Check for delete operations in the codebase that might affect these relations
rg -A 5 "delete.*where|deleteFrom" --type ts

Length of output: 8264

apps/web/src/trpc/routers/user.ts (1)

56-60: ⚠️ Potential issue

Critical: Potential data integrity issues with simplified user deletion

The removal of transaction-based cascading deletions could lead to orphaned records in related tables (polls, votes, comments, etc.). This might violate referential integrity unless proper ON DELETE CASCADE constraints are configured in the database schema.

Let's verify the database schema configuration:

Consider adding proper error handling and restoring the transaction-based approach if cascade deletes are not configured:

 delete: privateProcedure.mutation(async ({ ctx }) => {
+  try {
+    // Wrap in transaction to ensure atomicity
+    return await prisma.$transaction(async (tx) => {
+      // Delete related records first
+      await Promise.all([
+        tx.poll.deleteMany({ where: { userId: ctx.user.id } }),
+        tx.vote.deleteMany({ where: { userId: ctx.user.id } }),
+        tx.comment.deleteMany({ where: { userId: ctx.user.id } }),
+        // Add other related entities
+      ]);
+
+      // Finally delete the user
       await prisma.user.delete({
         where: {
           id: ctx.user.id,
         },
       });
+    });
+  } catch (error) {
+    throw new TRPCError({
+      code: 'INTERNAL_SERVER_ERROR',
+      message: 'Failed to delete user and related data',
+      cause: error,
+    });
+  }
 }),

@vercel vercel bot temporarily deployed to Preview – landing December 22, 2024 10:36 Inactive
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Actionable comments posted: 0

🧹 Nitpick comments (2)
packages/database/prisma/seed.ts (1)

66-71: Consider batch creating users for better performance

While the current implementation correctly creates guest users for participants, consider using createMany for better performance when creating multiple participants.

 participants: {
   create: Array.from({ length: Math.round(Math.random() * 10) }).map(
     () => ({
       name: faker.name.fullName(),
       email: faker.internet.email(),
-      user: {
-        create: {
-          id: faker.random.alpha(10),
-          isGuest: true,
-        },
-      },
+      userId: faker.random.alpha(10), // Reference user ID
     }),
   ),
 },
+users: {
+  createMany: {
+    data: Array.from({ length: Math.round(Math.random() * 10) }).map(() => ({
+      id: faker.random.alpha(10),
+      isGuest: true,
+    })),
+  },
+},
apps/web/src/trpc/routers/polls/participants.ts (1)

176-180: Consider moving email validation to schema level

While the null check for watcher emails is correct, consider moving this validation to the schema level for better consistency.

// At schema definition level
user: {
  select: {
-   email: true,
+   email: z.string().email().optional(),
    name: true,
  },
},
📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 1b46326 and 226dd40.

📒 Files selected for processing (3)
  • apps/web/src/components/poll/mutations.ts (1 hunks)
  • apps/web/src/trpc/routers/polls/participants.ts (2 hunks)
  • packages/database/prisma/seed.ts (1 hunks)
🔇 Additional comments (4)
apps/web/src/components/poll/mutations.ts (2)

23-26: LGTM: Response destructuring handles new API structure correctly

The changes properly handle the new API response structure where poll data is now included alongside participant data.


31-31: Verify participant data structure consistency

The spread operator usage needs to be verified to ensure all required fields are properly included in the cache update.

✅ Verification successful

Let me gather more information about the participant data structure to verify the consistency.


Let me try a different approach to find the participant structure.


Based on the codebase analysis, I can now generate the final response:

Spread operator usage in cache update is correct and consistent

The spread operator usage in the cache update is correct as it maintains all the required participant fields. Looking at the mutations and data structures:

  • The newParticipant object already contains all the necessary fields from the API response
  • The spread operator preserves these fields while adding the votes and pollId fields
  • This pattern is consistently used across participant mutations (add/update/delete)
  • The participant data structure is properly maintained in the cache updates
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for participant data structure usage across the codebase
rg -A 5 "participants\.list\.setData" 

Length of output: 1498


Script:

#!/bin/bash
# Search for participant type definitions and interfaces
ast-grep --pattern 'type Participant = {
  $$$
}'

# Also search for interface definitions
ast-grep --pattern 'interface Participant {
  $$$
}'

# Search for participant-related schemas or validation
rg -A 10 "Participant.*Schema|createParticipant"

Length of output: 157


Script:

#!/bin/bash
# Search for participant type/interface definitions with more flexible patterns
rg -A 10 "type.*Participant|interface.*Participant|Participant.*="

# Search for participant creation or mutation patterns
ast-grep --pattern 'const newParticipant = {
  $$$
}'

# Look for participant-related files
fd participant

Length of output: 66020

apps/web/src/trpc/routers/polls/participants.ts (2)

98-113: LGTM: Robust user association implementation

The implementation correctly handles user associations using connectOrCreate, ensuring data integrity while supporting guest users.


Line range hint 98-180: Verify transaction boundaries

The transaction scope includes participant creation and vote creation but excludes email operations. This is correct as email operations should be outside transactions, but we should verify error handling.

✅ Verification successful

Transaction boundaries are correctly implemented

The transaction scope in the code is correctly implemented. The transaction includes both participant creation and vote creation, while keeping email operations outside. This is the right approach because:

  1. The participant creation and vote creation are atomic operations that need to be consistent
  2. Email operations are properly placed outside the transaction since they are side effects that shouldn't roll back database changes if they fail
  3. The error handling follows the pattern seen in other parts of the codebase where transactions are used for atomic operations (e.g., in merge-user.ts and polls.ts)
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for similar transaction patterns to verify consistency
rg -A 10 "\$transaction" 

Length of output: 25


Script:

#!/bin/bash
# Search for transaction patterns with proper escaping
rg -A 10 '\.transaction' 

Length of output: 26


Script:

#!/bin/bash
# Search for transaction patterns in TypeScript files
fd -e ts -x cat {} | rg -A 10 '\.transaction'

Length of output: 49


Script:

#!/bin/bash
# Use ast-grep to find transaction blocks
ast-grep --pattern 'prisma.transaction(async ($$$) => {
  $$$
})'

Length of output: 67


Script:

#!/bin/bash
# Search for transaction patterns using more generic pattern
rg -A 10 "transaction\(" 

Length of output: 2804


Script:

#!/bin/bash
# Search specifically in the polls directory
fd . "apps/web/src/trpc/routers/polls" -t f -x cat {} | rg -A 10 "transaction"

Length of output: 426


Script:

#!/bin/bash
# Look for Prisma usage patterns
rg -A 5 "prisma\." 

Length of output: 34529

@vercel vercel bot temporarily deployed to Preview – landing December 22, 2024 11:19 Inactive
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Actionable comments posted: 1

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 226dd40 and 5d71234.

📒 Files selected for processing (7)
  • apps/web/src/app/api/stripe/checkout/route.ts (1 hunks)
  • apps/web/src/app/api/stripe/webhook/route.ts (0 hunks)
  • packages/database/prisma/migrations/20241217102725_create_guest_users/migration.sql (1 hunks)
  • packages/database/prisma/migrations/20241217113050_remove_orphaned_rows/migration.sql (1 hunks)
  • packages/database/prisma/migrations/20241218160237_create_guest_users/migration.sql (1 hunks)
  • packages/database/prisma/migrations/20241222105146_update_susubscription_delete/migration.sql (1 hunks)
  • packages/database/prisma/schema.prisma (6 hunks)
💤 Files with no reviewable changes (1)
  • apps/web/src/app/api/stripe/webhook/route.ts
🚧 Files skipped from review as they are similar to previous changes (5)
  • apps/web/src/app/api/stripe/checkout/route.ts
  • packages/database/prisma/migrations/20241217113050_remove_orphaned_rows/migration.sql
  • packages/database/prisma/migrations/20241218160237_create_guest_users/migration.sql
  • packages/database/prisma/migrations/20241217102725_create_guest_users/migration.sql
  • packages/database/prisma/schema.prisma
🔇 Additional comments (1)
packages/database/prisma/migrations/20241222105146_update_susubscription_delete/migration.sql (1)

1-5: LGTM! Well-structured foreign key modification.

The changes to the foreign key constraint are well-designed:

  • ON DELETE SET NULL appropriately handles subscription deletions without orphaning user records
  • ON UPDATE CASCADE maintains referential integrity if subscription IDs change

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