On Fri, Sep 07, 2007 at 03:11:27PM +0100, David Herbert wrote: > I have a requirement to apply a property filter to a WFS layer of my map > e.g: > > <Filter> > <PropertyIsEqualTo> > <PropertyName>species</PropertyName> > <Literal>chinstrap penguin</Literal> > </PropertyIsEqualTo> > </Filter> > > for a WFS layer displaying bird colonies. Looking at the docs at: > > http://dev.openlayers.org/docs/files/OpenLayers/Layer/WFS-js.html > > leads me to believe a method called mergeNewParams is available, which > will modify the layer parameters and redraw it. I am using OL 2.4 > stable. However, trying to use this method results in "mergeNewParams > is not a function" errors. Looking at WFS.js, I see this method is not > there. Should it be? If not, what's the best approach to filtering > layers this way? Should I remove the layer and recreate with new > parameters? Or is there a better way?
mergeNewParams is only in trunk. But if you're not changing the filtero n the fly, you don't need to use it anyway: simply add a 'filter':'myfilterstring' in the parameters when you construct your layer. The parameters are the third argument to the WFS constructor. If you do need to do on-the-fly filtering, then you'll need to either go to trunk, or you'll need to destroy the layer and re-add it with a new filter when it changes. Regards, -- Christopher Schmidt MetaCarta _______________________________________________ Users mailing list [email protected] http://openlayers.org/mailman/listinfo/users
