Thanks Even and Jukka for the feedback, I'd be a bit hesitant about adding a new keyword QUERYABLE as this would require updating a lot of existing Mapfiles.
It looks like MapContext and SOS (Sensor Observation Service) both set LAYER TEMPLATE to a value if missing, so maybe this is something to consider for OGC Features API (and possibly WFS?). The LAYER would be hidden if "gml_include_items" and "gml_featureid" aren't set (again the gml usage is somewhat confusing naming in non-GML contexts). Seth -- web:https://geographika.net & https://mapserverstudio.net mastodon: @geographika@mastodon.social On Sun, Jan 26, 2025, at 9:32 PM, Rahkonen Jukka wrote: > Hi, > > I think that having a keyword QUERYABLE=yes/no with default value "no" > would be easy to understand. TEMPLATE would be preserved for the > text/html output. > > -Jukka Rahkonen- > > > TEMPLATE would > -----Alkuperäinen viesti----- > Lähettäjä: MapServer-dev <mapserver-dev-boun...@lists.osgeo.org> > Puolesta Seth G via MapServer-dev > Lähetetty: sunnuntai 26. tammikuuta 2025 10.47 > Vastaanottaja: MapServer Devs <mapserver-dev@lists.osgeo.org> > Aihe: [MapServer-dev] Remove requirement for TEMPLATE keyword? > > Hi devs, > > One of the issues I've run into when explaining MapServer to colleagues > is the TEMPLATE keyword. The docs don't really explain its purpose, or > mention how it makes a layer "queryable" [1]. I also ran into myself > this week when a layer wasn't displaying in the OGC Features API as I > forgot to add TEMPLATE to the LAYER definition. > > Should dropping the requirement to add a TEMPLATE to a LAYER to make it > queryable be considered in a future release? > > There are more and more examples of the following, which is hard to > explain to new users: > > LAYER > TEMPLATE "ttt" > # or > # TEMPLATE VOID > ... > > There are also many cases in the codebase where this is set > automatically anyway: > > layer->template = msStrdup("ttt"); > > The only problem I can see is that it could accidentally allow feature > attributes to "leak" out, e.g. for LAYERs with a "select * from tbl", > but there is a prevalence of examples when TEMPLATE is set to a fake > value anyway. > Are there any other side-effects if it were set to be "on" by default? > > Seth > > > [1] https://mapserver.org/mapfile/layer.html#mapfile-layer-template > > -- > web:https://geographika.net/ & https://mapserverstudio.net/ > mastodon: @geographika@mastodon.social > _______________________________________________ > MapServer-dev mailing list > MapServer-dev@lists.osgeo.org > https://lists.osgeo.org/mailman/listinfo/mapserver-dev _______________________________________________ MapServer-dev mailing list MapServer-dev@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/mapserver-dev
