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Add API smwbrowse module #2696

merged 1 commit into from Sep 23, 2017


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mwjames commented Sep 23, 2017

This PR is made in reference to: #

This PR addresses or contains:

  • Adds smwbrowse as API module (required for an upcoming feature) and currently supports the search for
    • properties
    • categories
    • concepts
  • Does a similar thing like browsebyproperty but that module was not easily extendable therefore rewrote it from scratch, eventually it will be deprecated and removed
  • It is expected to incorporate browsebysubject at a later state so that this module can be scrapped as well
  • Classes and responsibilities are split into:
    • Browse (API, MediaWiki)
    • ListLookup (primary selector),
    • ListAugmentor (adding additional field components) with
      • property to support:
        • description to pull the Has property description in a selected language
        • prefLabal to fetch the Has preferred property label in a selected language
        • usageCount retrieve the usage count of the property
    • LookupCache caches each request for 1 h (can be changed using smwgCacheUsage and api.browse) and by this avoids to introduce some complex invalidation strategy, yet keeping requests close to up-to-date information


'api.php?action=smwbrowse&browse=property&params={ "limit": 10, "offset": 0, "search": "Date" }',
'api.php?action=smwbrowse&browse=property&params={ "limit": 10, "offset": 0, "search": "Date", "description": true }',
'api.php?action=smwbrowse&browse=property&params={ "limit": 10, "offset": 0, "search": "Date", "description": true, "prefLabel": true }',
'api.php?action=smwbrowse&browse=property&params={ "limit": 10, "offset": 0, "search": "Date", "description": true, "prefLabel": true, "usageCount": true }',
'api.php?action=smwbrowse&browse=category&params={ "limit": 10, "offset": 0 }',
'api.php?action=smwbrowse&browse=category&params={ "limit": 10, "offset": 0, "search": "Date" }',
'api.php?action=smwbrowse&browse=concept&params={ "limit": 10, "offset": 0 }'
'api.php?action=smwbrowse&browse=concept&params={ "limit": 10, "offset": 0, "search": "Date" }'


    "query": {
        "Has_description": {
            "label": "Has description",
            "key": "Has_description",
            "description": {
                "en": "Simple descriptive explanatory text property."
            "prefLabel": {
                "en": ""
        "_PDESC": {
            "label": "Has property description",
            "key": "_PDESC",
            "description": {
                "en": ""Has property description" is a predefined prop..."
            "prefLabel": {
                "en": ""
    "query-continue-offset": 0,
    "version": 1,
    "meta": {
        "type": "property",
        "limit": 10,
        "count": 2,
        "isFromCache": "",
        "queryTime": 0.00051

This PR includes:

  • Tests (unit/integration)
  • CI build passed

Fixes #

@mwjames mwjames added this to the SMW 3.0.0 milestone Sep 23, 2017

@mwjames mwjames merged commit d3930bf into master Sep 23, 2017

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@mwjames mwjames deleted the api-smwbrowse branch Sep 23, 2017


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kghbln commented Sep 24, 2017

@kghbln kghbln added enhancement and removed wikidocu missing labels Sep 24, 2017

mwjames added a commit that referenced this pull request Jul 28, 2018

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