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fix #3057 #3537

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fix #3057 #3537

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40 changes: 21 additions & 19 deletions packages/mongodb/src/adapter.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -129,17 +129,30 @@ export class MongoDbAdapter<
}

/* TODO: Remove $out and $merge stages, else it returns an empty cursor. I think its safe to assume this is primarily for querying. */
async aggregateRaw(params: ServiceParams) {
const model = await this.getModel(params)
parsePipeline(params: ServiceParams) {
const pipeline = params.pipeline || []
const index = pipeline.findIndex((stage: Document) => stage.$feathers)
const before = index >= 0 ? pipeline.slice(0, index) : []
const feathersPipeline = this.makeFeathersPipeline(params)
const after = index >= 0 ? pipeline.slice(index + 1) : pipeline
return { before, after }
}

async aggregateRaw(params: ServiceParams) {
const model = await this.getModel(params)
const { before, after } = this.parsePipeline(params)
const feathersPipeline = this.makeFeathersPipeline(params)

return model.aggregate([...before, ...feathersPipeline, ...after], params.mongodb)
}

async countAggregate(params: ServiceParams) {
const model = await this.getModel(params)
const { before, after } = this.parsePipeline(params)

const res = await model.aggregate([...before, ...after, { $count: 'total' }], params.mongodb).then((result) => result.toArray())
return res?.pop()?.totla ?? 0
}

makeFeathersPipeline(params: ServiceParams) {
const { filters, query } = this.filterQuery(null, params)
const pipeline: Document[] = [{ $match: query }]
Expand Down Expand Up @@ -210,21 +223,6 @@ export class MongoDbAdapter<
const { useEstimatedDocumentCount } = this.getOptions(params)
const { query } = this.filterQuery(null, params)

if (params.pipeline) {
const aggregateParams = {
...params,
query: {
...params.query,
$select: [this.id],
$sort: undefined,
$skip: undefined,
$limit: undefined
}
}
const result = await this.aggregateRaw(aggregateParams).then((result) => result.toArray())
return result.length
}

const model = await this.getModel(params)

if (useEstimatedDocumentCount && typeof model.estimatedDocumentCount === 'function') {
Expand Down Expand Up @@ -294,6 +292,10 @@ export class MongoDbAdapter<
return result.then((result) => result.toArray())
}

const getTotal = () => {
return params.pipeline ? this.countAggregate(params) : this.countDocuments(params)
}

if (paginationDisabled) {
if (filters.$limit === 0) {
return [] as Result[]
Expand All @@ -311,7 +313,7 @@ export class MongoDbAdapter<
}
}

const [data, total] = await Promise.all([getData(), this.countDocuments(params)])
const [data, total] = await Promise.all([getData(), getTotal()])

return {
total,
Expand Down
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