Conversation
WalkthroughThe PR introduces a program-level locking mechanism and refactors component update operations across multiple helpers. It adds a new Changes
Sequence Diagram(s)sequenceDiagram
participant Caller
participant executeWithProgramLock
participant programLocks Map
participant programQueries
participant DB
Caller->>executeWithProgramLock: executeWithProgramLock(programId, asyncFn)
executeWithProgramLock->>programLocks: check for existing lock
alt Lock exists
executeWithProgramLock->>programLocks: wait for lock release
end
executeWithProgramLock->>programLocks: acquire lock
executeWithProgramLock->>programQueries: programsDocument (fetch components)
programQueries->>DB: query with projection
DB-->>programQueries: program data
programQueries-->>executeWithProgramLock: components array
executeWithProgramLock->>Caller: execute asyncFn (calculate order, prepare update)
Caller->>programQueries: updateOne(filterData, updateData)
programQueries->>DB: atomic update with $addToSet
DB-->>programQueries: result
programQueries-->>Caller: update result
Caller-->>executeWithProgramLock: return
executeWithProgramLock->>programLocks: release lock
executeWithProgramLock-->>Caller: return result
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~25 minutes The changes introduce new concurrent-access logic (locking mechanism) and refactor multiple update patterns across different files. While the lock implementation and database method are straightforward, the refactored component update flows require understanding the atomic read-then-update semantics and verifying correctness across two distinct code paths that follow a consistent pattern. Possibly related PRs
Suggested reviewers
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Pre-merge checks and finishing touches❌ Failed checks (1 warning, 1 inconclusive)
✅ Passed checks (1 passed)
✨ Finishing touches
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…service into ProgramUpdateFix
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Actionable comments posted: 4
Caution
Some comments are outside the diff and can’t be posted inline due to platform limitations.
⚠️ Outside diff range comments (1)
module/project/templates/helper.js (1)
1292-1304: Use programExternalId from programDetails instead of programId ObjectId at line 1301.The concern is valid and substantiated. At line 1301,
programExternalIdis being set tonewProjectTemplateTask.programId, which is an ObjectId (confirmed in models/solutions.js). However,programExternalIdmust be a String (confirmed in models/solutions.js:30 and verified at line 1028 where it's populated fromprogramDetails.programExternalId).Fix: Change line 1301 from:
programExternalId: newProjectTemplateTask.programId,to:
programExternalId: newProjectTemplateTask.programExternalId,The field is available on
newProjectTemplateTask(line 1028) and contains the correct String value.
🧹 Nitpick comments (1)
generics/helpers/utils.js (1)
1013-1035: Replace busy-wait lock with a fair async queue; consider timeout and multi-process note.Current while+sleep polling is wasteful and can pile up timers under load. Queueing promises per programId serializes work without polling and is fair.
-async function executeWithProgramLock(programId, fn) { - // Wait until any existing lock for this program ID is released - while (programLocks.get(programId)) { - await new Promise((res) => setTimeout(res, 50)) // wait for previous update - } - programLocks.set(programId, true) - try { - return await fn() - } finally { - programLocks.delete(programId) - } -} +async function executeWithProgramLock(programId, fn) { + const prev = programLocks.get(programId) || Promise.resolve() + const run = prev.then(fn, fn) + // keep tail promise to maintain the chain + programLocks.set( + programId, + run.finally(() => { + if (programLocks.get(programId) === run) programLocks.delete(programId) + }) + ) + return run +}Note: This is in‑memory only; it won’t serialize across processes/pods. If cross‑instance serialization is required, consider a distributed lock (Mongo unique “lease” doc, Redis SET NX PX, etc.).
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro
📒 Files selected for processing (4)
databaseQueries/programs.js(1 hunks)generics/helpers/solutionAndProjectTemplateUtils.js(1 hunks)generics/helpers/utils.js(3 hunks)module/project/templates/helper.js(2 hunks)
🧰 Additional context used
🪛 ESLint
generics/helpers/solutionAndProjectTemplateUtils.js
[error] 141-141: 'UTILS' is not defined.
(no-undef)
[error] 145-145: 'updateResult' is assigned a value but never used.
(no-unused-vars)
databaseQueries/programs.js
[error] 90-98: Unnecessary try/catch wrapper.
(no-useless-catch)
[error] 93-93: 'database' is not defined.
(no-undef)
| /** | ||
| * update one program document. | ||
| * @method | ||
| * @name updateOne | ||
| * @param {Object} [filterData={}] - Filter criteria to match the program document. | ||
| * @param {Object} [updateData={}] - Fields to update in the program document. | ||
| * @param {Object} [options={}] - Optional settings for the update operation (e.g., upsert, new). | ||
| * @returns {Object} Update result. | ||
| */ | ||
| static async updateOne(filterData = {}, updateData = {}, options = {}) { | ||
| try { | ||
| const queryObject = filterData !== 'all' ? filterData : {} | ||
|
|
||
| const result = await database.models.programs.updateOne(queryObject, updateData, options) | ||
|
|
||
| return result | ||
| } catch (error) { | ||
| throw error | ||
| } | ||
| } |
There was a problem hiding this comment.
🧩 Analysis chain
Harden updateOne: prevent empty-filter writes; remove useless catch; fix docs/options.
- Calling updateOne with filterData 'all' or {} risks updating an arbitrary document. Block empty filters.
- The try/catch just rethrows (no-useless-catch).
- JSDoc mentions option 'new' which doesn’t apply to updateOne; return type is a write result, not the updated doc.
- ESLint no-undef for database: ensure the global is available at runtime or import it consistently.
Apply this minimal fix:
- static async updateOne(filterData = {}, updateData = {}, options = {}) {
- try {
- const queryObject = filterData !== 'all' ? filterData : {}
-
- const result = await database.models.programs.updateOne(queryObject, updateData, options)
-
- return result
- } catch (error) {
- throw error
- }
- }
+ static async updateOne(filterData = {}, updateData = {}, options = {}) {
+ const queryObject = filterData !== 'all' ? filterData : {}
+ if (Object.keys(queryObject).length === 0) {
+ throw new Error('Refusing to call updateOne() with an empty filter.')
+ }
+ return database.models.programs.updateOne(queryObject, updateData, options)
+ }Also update the JSDoc to remove 'new' and clarify that this returns the Mongo write result. If callers need the updated document, prefer findOneAndUpdate with { new: true, lean: true }.
Run a quick grep to ensure no call site relies on updateOne returning a document:
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#!/bin/bash
rg -nP --type=js -C2 '\bprogramQueries\.updateOne\('Length of output: 1153
Harden updateOne: prevent empty-filter writes; remove useless catch; fix JSDoc.
Verified that all concerns are valid:
- Empty filter {} on
updateOnematches the first document in the collection, risking arbitrary updates. The code must block this. - The try/catch block only rethrows—ESLint no-useless-catch applies.
- JSDoc incorrectly mentions option 'new'; MongoDB's
updateOnereturns a WriteResult object, not the updated document. The 'new' option applies only tofindOneAndUpdate. - No call site uses the return value (line 145 in solutionAndProjectTemplateUtils.js assigns to
updateResultbut never references it; the other two call sites don't assign at all). The proposed fix is safe.
Apply the suggested diff to databaseQueries/programs.js lines 80–99:
- Add validation to reject empty filters
- Remove the useless try/catch block
- Update JSDoc to reflect actual return type (WriteResult metadata)
🧰 Tools
🪛 ESLint
[error] 90-98: Unnecessary try/catch wrapper.
(no-useless-catch)
[error] 93-93: 'database' is not defined.
(no-undef)
🤖 Prompt for AI Agents
In databaseQueries/programs.js around lines 80–99, update the updateOne method
to (1) validate the incoming filterData and refuse empty filters (e.g., reject
{} or undefined unless explicitly allowed) by throwing a clear error to prevent
accidental multi-doc/first-doc updates, (2) remove the useless try/catch that
only rethrows, and (3) update the JSDoc to remove the incorrect 'new' option and
state the method returns MongoDB write-result metadata (not the updated
document); keep calling database.models.programs.updateOne(queryObject,
updateData, options) after the validation.
| UTILS.executeWithProgramLock(programData[0]._id.toString(), async () => { | ||
| const newprogramData = await programQueries.programsDocument(programMatchQuery, ['components']) | ||
|
|
||
| const order = (newprogramData[0].components?.length || 0) + 1 | ||
| const updateResult = await programQueries.updateOne(programMatchQuery, { | ||
| $addToSet: { | ||
| components: { _id: solutionCreation._id, order }, | ||
| }, | ||
| }) | ||
| }) |
There was a problem hiding this comment.
🧩 Analysis chain
Missing await means the lock doesn’t serialize; drop unused variable; ensure UTILS is in scope.
- UTILS.executeWithProgramLock is async but not awaited, so the createSolution flow proceeds without waiting. This defeats the serialization goal and drops errors.
- updateResult is assigned but unused.
- ESLint: UTILS no-undef. If UTILS isn’t a guaranteed global here, import it.
Apply:
- UTILS.executeWithProgramLock(programData[0]._id.toString(), async () => {
+ await UTILS.executeWithProgramLock(programData[0]._id.toString(), async () => {
const newprogramData = await programQueries.programsDocument(programMatchQuery, ['components'])
const order = (newprogramData[0].components?.length || 0) + 1
- const updateResult = await programQueries.updateOne(programMatchQuery, {
+ await programQueries.updateOne(programMatchQuery, {
$addToSet: {
components: { _id: solutionCreation._id, order },
},
})
})If UTILS isn’t globally injected, add at top:
+const UTILS = require(GENERICS_FILES_PATH + '/helpers/utils')Use this to confirm there are no other un-awaited calls:
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---
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---
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Fix missing await, remove unused variable, and verify UTILS import.
The review findings are confirmed:
- executeWithProgramLock is async (defined in utils.js line 1024) but not awaited at line 141, breaking serialization and error handling.
- updateResult is assigned but never used—confirmed by search showing only one reference.
- UTILS is not imported in solutionAndProjectTemplateUtils.js but used multiple times, indicating a missing import or reliance on global injection.
Apply the suggested fixes:
- Add
awaitbeforeUTILS.executeWithProgramLock - Remove
const updateResult =assignment, keeping onlyawait programQueries.updateOne(...) - Verify or add the UTILS import if not globally injected
🧰 Tools
🪛 ESLint
[error] 141-141: 'UTILS' is not defined.
(no-undef)
[error] 145-145: 'updateResult' is assigned a value but never used.
(no-unused-vars)
🤖 Prompt for AI Agents
In generics/helpers/solutionAndProjectTemplateUtils.js around lines 141 to 150,
the call to UTILS.executeWithProgramLock is not awaited (breaking
serialization/error propagation), updateResult is assigned but never used, and
UTILS appears not to be imported; fix by adding await before
UTILS.executeWithProgramLock, change the update call to await
programQueries.updateOne(...) (remove the unused const updateResult =), and
ensure UTILS is properly imported at the top of the file (or confirm it’s
intentionally provided globally) so the symbol is defined.
module/project/templates/helper.js
Outdated
There was a problem hiding this comment.
🧩 Analysis chain
Serialize OBSERVATION component append; avoid race on order.
Two requests can compute the same length and write identical order values. Wrap read+update in a program lock and await it.
- let observationPrograms = await programQueries.programsDocument(
+ await UTILS.executeWithProgramLock(newProjectTemplateTask.programId.toString(), async () => {
+ let observationPrograms = await programQueries.programsDocument(
{
_id: newProjectTemplateTask.programId,
},
['components']
)
let observationComponentOrder =
observationPrograms && observationPrograms.length > 0
? observationPrograms[0]?.components?.length || 0
: 0
- if (observationPrograms) {
- await programQueries.updateOne(
+ if (observationPrograms) {
+ await programQueries.updateOne(
{
_id: newProjectTemplateTask.programId,
'components._id': { $ne: newProjectTemplateTask.solutionDetails._id },
},
{
$addToSet: {
components: {
_id: newProjectTemplateTask.solutionDetails._id,
order: ++observationComponentOrder,
},
},
}
)
- }
+ }
+ })Optional: eliminate read/compute by using a MongoDB aggregation‑pipeline update to atomically append with order: {$add: [{$size:"$components"}, 1]}. I can provide a patch if desired.
I'll verify the review comment by examining the codebase to confirm the race condition exists and validate the suggested fix.
---
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fd -e js 'helper\.js' | grep -i project | head -5
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rg -n 'executeWithProgramLock' --type jsLength of output: 365
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# Search for programQueries.updateOne to understand the update behavior
rg -nA 5 'updateOne' --type js -C 2 | head -50Length of output: 3708
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Wrap read+update in program lock for both observation AND survey component appends; avoid race on order.
Two requests can compute the same component length and write identical order values. The observation block (lines 1330–1355) and the survey block (lines 1388–1410) both have this vulnerability. Wrap each read+update in UTILS.executeWithProgramLock():
+ await UTILS.executeWithProgramLock(newProjectTemplateTask.programId.toString(), async () => {
let observationPrograms = await programQueries.programsDocument(
{
_id: newProjectTemplateTask.programId,
},
['components']
)
let observationComponentOrder =
observationPrograms && observationPrograms.length > 0
? observationPrograms[0]?.components?.length || 0
: 0
if (observationPrograms) {
await programQueries.updateOne(
{
_id: newProjectTemplateTask.programId,
'components._id': { $ne: newProjectTemplateTask.solutionDetails._id },
},
{
$addToSet: {
components: {
_id: newProjectTemplateTask.solutionDetails._id,
order: ++observationComponentOrder,
},
},
}
)
}
+ })Apply the same lock wrapping to the survey block (lines ~1388–1410).
Optional: eliminate read/compute by using MongoDB aggregation-pipeline update with order: {$add: [{$size:"$components"}, 1]} for atomic append without locks.
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| { | |
| _id: newProjectTemplateTask.programId, | |
| }, | |
| { | |
| $addToSet: { | |
| components: { | |
| _id: newProjectTemplateTask.solutionDetails._id, | |
| order: ++nextComponentOrder, | |
| }, | |
| }, | |
| } | |
| ['components'] | |
| ) | |
| let observationComponentOrder = | |
| observationPrograms && observationPrograms.length > 0 | |
| ? observationPrograms[0]?.components?.length || 0 | |
| : 0 | |
| if (observationPrograms) { | |
| await programQueries.updateOne( | |
| { | |
| _id: newProjectTemplateTask.programId, | |
| 'components._id': { $ne: newProjectTemplateTask.solutionDetails._id }, | |
| }, | |
| { | |
| $addToSet: { | |
| components: { | |
| _id: newProjectTemplateTask.solutionDetails._id, | |
| order: ++observationComponentOrder, | |
| }, | |
| }, | |
| } | |
| ) | |
| } | |
| await UTILS.executeWithProgramLock(newProjectTemplateTask.programId.toString(), async () => { | |
| let observationPrograms = await programQueries.programsDocument( | |
| { | |
| _id: newProjectTemplateTask.programId, | |
| }, | |
| ['components'] | |
| ) | |
| let observationComponentOrder = | |
| observationPrograms && observationPrograms.length > 0 | |
| ? observationPrograms[0]?.components?.length || 0 | |
| : 0 | |
| if (observationPrograms) { | |
| await programQueries.updateOne( | |
| { | |
| _id: newProjectTemplateTask.programId, | |
| 'components._id': { $ne: newProjectTemplateTask.solutionDetails._id }, | |
| }, | |
| { | |
| $addToSet: { | |
| components: { | |
| _id: newProjectTemplateTask.solutionDetails._id, | |
| order: ++observationComponentOrder, | |
| }, | |
| }, | |
| } | |
| ) | |
| } | |
| }) |
🤖 Prompt for AI Agents
In module/project/templates/helper.js around lines 1330–1355, the observation
component read+update sequence must be wrapped in UTILS.executeWithProgramLock
to prevent race conditions when computing and writing the component order;
replace the current read (fetching observationPrograms and computing
observationComponentOrder) and subsequent updateOne call with a single
UTILS.executeWithProgramLock(async () => { /* perform the read and update inside
the lock using newProjectTemplateTask.programId as the lock key */ }); and apply
the identical lock wrapping to the survey append block around lines ~1388–1410
so both blocks use the program lock; alternatively you may replace read+update
with an aggregation-pipeline update that sets order: {$add: [{$size:
"$components"}, 1]} for an atomic append without locks.
module/project/templates/helper.js
Outdated
There was a problem hiding this comment.
Same race in SURVEY path; wrap with the lock (and consider atomic pipeline update).
Mirror the OBSERVATION fix here:
- let surveyPrograms = await programQueries.programsDocument(
+ await UTILS.executeWithProgramLock(newProjectTemplateTask.programId.toString(), async () => {
+ let surveyPrograms = await programQueries.programsDocument(
{
_id: newProjectTemplateTask.programId,
},
['components']
)
let surveyComponentOrder =
surveyPrograms && surveyPrograms.length > 0 ? surveyPrograms[0]?.components?.length || 0 : 0
- if (surveyPrograms) {
- await programQueries.updateOne(
+ if (surveyPrograms) {
+ await programQueries.updateOne(
{
_id: newProjectTemplateTask.programId,
'components._id': { $ne: newProjectTemplateTask.solutionDetails._id },
},
{
$addToSet: {
components: {
_id: newProjectTemplateTask.solutionDetails._id,
order: ++surveyComponentOrder,
},
},
}
)
- }
+ }
+ })📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| { | |
| _id: newProjectTemplateTask.programId, | |
| }, | |
| { | |
| $addToSet: { | |
| components: { | |
| _id: newProjectTemplateTask.solutionDetails._id, | |
| order: ++nextComponentOrder, | |
| }, | |
| }, | |
| } | |
| ['components'] | |
| ) | |
| let surveyComponentOrder = | |
| surveyPrograms && surveyPrograms.length > 0 ? surveyPrograms[0]?.components?.length || 0 : 0 | |
| if (surveyPrograms) { | |
| await programQueries.updateOne( | |
| { | |
| _id: newProjectTemplateTask.programId, | |
| 'components._id': { $ne: newProjectTemplateTask.solutionDetails._id }, | |
| }, | |
| { | |
| $addToSet: { | |
| components: { | |
| _id: newProjectTemplateTask.solutionDetails._id, | |
| order: ++surveyComponentOrder, | |
| }, | |
| }, | |
| } | |
| ) | |
| } | |
| await UTILS.executeWithProgramLock(newProjectTemplateTask.programId.toString(), async () => { | |
| let surveyPrograms = await programQueries.programsDocument( | |
| { | |
| _id: newProjectTemplateTask.programId, | |
| }, | |
| ['components'] | |
| ) | |
| let surveyComponentOrder = | |
| surveyPrograms && surveyPrograms.length > 0 ? surveyPrograms[0]?.components?.length || 0 : 0 | |
| if (surveyPrograms) { | |
| await programQueries.updateOne( | |
| { | |
| _id: newProjectTemplateTask.programId, | |
| 'components._id': { $ne: newProjectTemplateTask.solutionDetails._id }, | |
| }, | |
| { | |
| $addToSet: { | |
| components: { | |
| _id: newProjectTemplateTask.solutionDetails._id, | |
| order: ++surveyComponentOrder, | |
| }, | |
| }, | |
| } | |
| ) | |
| } | |
| }) |
🤖 Prompt for AI Agents
In module/project/templates/helper.js around lines 1388 to 1412, the SURVEY
branch suffers the same race as the OBSERVATION code: reading surveyPrograms to
compute surveyComponentOrder and then doing an update is not protected and can
create duplicate/incorrect orders under concurrency. Wrap the read+update in the
same lock used for OBSERVATION (acquire lock on programId, re-fetch components
inside the lock), or replace with a single atomic update pipeline (e.g., use a
findOneAndUpdate with an aggregation pipeline that computes length/next order
and $addToSet if not present) so the check and insert are atomic; release the
lock after the update.
Description
These recommendations are intended to promote code quality and team communication during software development. They cover a variety of topics, including ensuring that pull requests are submitted to the correct branch, documenting new methods, preserving consistency across many services, and avoiding typical blunders like accessing APIs or DB queries within loops. Sensitive data should not be uploaded, and changes to environment variables or database models should be executed consistently. Teams may work more effectively and develop higher-quality software by adhering to these standards.
Type of change
Please choose appropriate options.
Checklist
Summary by CodeRabbit