Great!, I will try
I was wondering if there is a sample code for it..
Thank v much..
regards,
Ary Sucaya
----- Original Message ----
From: "Kenneth, GEOGRAF A/S" <[EMAIL PROTECTED]>
To: MapGuide Users Mail List <[email protected]>
Sent: Wednesday, January 2, 2008 8:46:05 AM
Subject: Re: [mapguide-users] Sql For Data Filter
I don't have a list of what the different providers support.
I have used the OGR provider, and it supports PostGIS and limited SQL.
My approach to your problem would be to start out with the layer hidden.
When you want to display the correct district, you read out the WKT of the
feature (district) you want to perform the intersection test with.
Then you update the filter on the layer to reflect this:
GeoColumn Intersects GEOMFROMTEXT('....wkt....')
Then show the layer.
You should copy the layer into the session repository before altering it.
If you want to theme it, you can create multiple copies of the layer and apply
theming to the individual layers.
Regards, Kenneth, GEOGRAF A/S
ary sucaya skrev:
Thank for your reply,
Can you pls inform me what provider support full sql syntax? I use postgis and
it seem to be not support full sql syntax.
In my case, i can't use join tables because i need spatial relationship between
2 tables. For examples in Mapguide sample there are 11 districts. At first
time, i want to hide parcels. Then i want to make a query to show parcels in
particular distric and i want maps show parcels which are in that query result.
In this case, join between two tables may not help me. I make use spatial
relationship such as intersects or within in this case.
Regards,
Ary Sucaya
----- Original Message ----
From: "Kenneth, GEOGRAF A/S" <[EMAIL PROTECTED]>
To: MapGuide Users Mail List <[email protected]>
Sent: Tuesday, January 1, 2008 5:25:05 PM
Subject: Re: [mapguide-users] Sql For Data Filter
That depends on the provider. Some providers supports full SQL syntax.
I can't see how you can join tables with a filter, as that is the equvalent of
the SQL WHERE construct.
You can try to setup a Join on the featuresource, but I have had limited
success with joins.
Regards, Kenneth, GEOGRAF A/S
ary sucaya skrev:
Hello,
I was wondering if i can put a complex sql statement at 'Filter applied to
data' textbox on Layer Editor. I need to show some data from my postgis table
and sql to select this data involving 2 or more table.
Regs,
ary sucaya
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