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removeMetadata #633

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Mar 17, 2024
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44 changes: 33 additions & 11 deletions src/store.ts
Original file line number Diff line number Diff line change
Expand Up @@ -871,25 +871,47 @@ export default class IndexedFormula extends Formula { // IN future - allow pass
}

/**
* Removes all statements in a doc, along with the related metadata including request/response
* Removes all metadata
* @param doc - The document / graph
*/
removeDocument(doc: Quad_Graph): IndexedFormula {
const meta = this.sym('chrome://TheCurrentSession') // or this.rdfFactory.namedNode('chrome://TheCurrentSession')
const linkNamespaceURI = 'http://www.w3.org/2007/ont/link#' // alain
// remove request/response and metadata
const requests = this.statementsMatching(undefined, this.sym(`${linkNamespaceURI}requestedURI`), this.rdfFactory.literal(doc.value), meta).map(st => st.subject)
removeMetadata(doc: Quad_Graph): IndexedFormula {
// temporary until the issue on COLLECTION is resolved see https://github.com/linkeddata/rdflib.js/issues/631
const meta = this.fetcher?.appNode // this.sym('chrome://TheCurrentSession')
const linkNamespaceURI = 'http://www.w3.org/2007/ont/link#'
const kb = this
// removeMatches() --> removeMany() --> remove() fails on Collection
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Wouldn't it be better to fix the remove() function to work with Collection instead of applying a workarround here?

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Yes it would. I did not find howto.

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What goes wrong with when one f the nodes being removed is a collection?

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@bourgeoa bourgeoa Feb 10, 2024

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@timbl
This is I hope is a detailed enough issue #631

function removeBySubject (subject) {
const sts = kb.statementsMatching(subject, null, null, meta)
// console.log(sts)
for (var i = 0; i < sts.length; i++) {
kb.removeStatement(sts[i])
}
}
const requests = this.statementsMatching(null, this.sym(`${linkNamespaceURI}requestedURI`), this.rdfFactory.literal(doc.value), meta).map(st => st.subject)
for (var r = 0; r < requests.length; r++) {
const request = requests[r]
if (request !== undefined) {
this.removeMatches(request, null, null, meta)
if (request != null) { // null or undefined
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The comment says "or undefined" but the code onyl checks for null. Why?

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Loose inequality does it
It is used in other places in rdflib

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I think Angelo is correct. If you remove line 884 which checks for undefined, the !=null will throw an undefined error if request is undefined.

const response = this.any(request, this.sym(`${linkNamespaceURI}response`), null, meta) as Quad_Subject
if (response !== undefined) { // ts
this.removeMatches(response, null, null, meta)
// console.log('REQUEST ' + request.value)
removeBySubject(request)
if (response != null) { // null or undefined
// console.log('RESPONSE ' + response.value)
removeBySubject(response)
}
}
}
this.removeMatches(this.sym(doc.value), null, null, meta) // content-type
// console.log('DOCTYPE ' + doc.value)
removeBySubject(doc)
return this
}

/**
* Removes all statements in a doc, along with the related metadata including request/response
* @param doc - The document / graph
*/
removeDocument(doc: Quad_Graph): IndexedFormula {
// remove request/response and metadata
this.removeMetadata(doc)

// remove document
var sts: Quad[] = this.statementsMatching(undefined, undefined, undefined, doc).slice() // Take a copy as this is the actual index
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15 changes: 11 additions & 4 deletions tests/unit/update-manager-test.js
Original file line number Diff line number Diff line change
Expand Up @@ -223,6 +223,17 @@ describe('UpdateManager', () => {
expect(updater.editable(doc1)).to.equal(undefined)
})

it('Should not detect a document is editable from metadata after removeMetadata', () => {
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How are these tests related to the changes? I would have expected a test that assures that Collections are now working.

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@bourgeoa bourgeoa Feb 7, 2024

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They test the new function removeMetadata

loadMeta(updater.store)
updater.store.removeMetadata(doc1)
expect(updater.editable(doc1)).to.equal(undefined)
})

it('Should not detect a document is editable from metadata after removeDocument', () => {
loadMeta(updater.store)
updater.store.removeDocument(doc1)
expect(updater.editable(doc1)).to.equal(undefined)
})

it('Async version should detect a document is editable from metadata', async () => {
loadMeta(updater.store)
Expand All @@ -233,13 +244,9 @@ describe('UpdateManager', () => {

it('Async version should not detect a document is editable from metadata after flush', async () => {
loadMeta(updater.store)

expect(updater.editable(doc1)).to.equal('SPARQL')

updater.flagAuthorizationMetadata()

const result = await updater.checkEditable(doc1)

expect(result).to.equal(undefined)
})

Expand Down
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