Configurable data listings

[jamoore]

For users with overwhelming numbers of projects, datasets or similar, it would be useful to be able to overwrite the query used to load the data panels.

See: ​https://www.openmicroscopy.org/community/viewtopic.php?f=6&t=789

[atarkowska]

Since 4.3 this is possible by overriding _getQueryString for particular wrapper.

[jmoore]

Ola, I'm re-opening so we can see if we can flush out exactly what is needed from the CMU group, but your suggestion may just cover it. A sub web-component (i.e. created via OmeroWeb/CreateApp) could override the wrapper that's used? That certainly gets us a good deal of the way there. Alternatively, we may want the definition of the data loading even configurable from the UI (though that may be a stretch).

[jmoore]

Passing to Will as a heads up, just in case this is needed as part of OMERO.search (#6572)

[wmoore]

It may be possible to change the object wrappers used, from within a web-component (app), by doing

class ScreenWrapper (omero.gateway.ScreenWrapper):
    """
    omero_model_ScreenI class wrapper extends OmeroWebObjectWrapper.
    """
    
    annotation_counter = None

    def _getQueryString(self)
        return "......


omero.gateway.ScreenWrapper = ScreenWrapper

omero.gateway.refreshWrappers()        # now, conn.getObject("Screen") will return subclass above.

However, I'm not sure if this gets you all you want in the display of a subset of Projects, Datasets etc.

[wmoore]

Speed of loading tree data has been recently addressed.