[Qgis-user] QGIS + Postgis table problem
Hi, I'm getting the following error when importing a Postgis table: 1 estado de cursor perdido. SQL: CLOSE qgisf3 Resulta: 7 (ERROR: current transaction is aborted, commands ignored until end of transaction block ) Does anyone know what it means and how to solve it? thanks - Cumprimentos, Pedro Ferreira -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/QGIS-Postgis-table-problem-tp7158069p7158069.html Sent from the qgis-user mailing list archive at Nabble.com. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] New Labeling: conditional labels
Hi On Thu, Dec 29, 2011 at 11:33 AM, Nathan Woodrow madman...@gmail.com wrote: It would be handy to add condition statements to QgsExpression so we can support this kind of thing, Martin would be the guy to talk to about adding this kind of thing. He knows the most about QgsExpression. SQL recognizes CASE statement with following alternate syntax: 1. if equivalent: CASE WHEN x 10 THEN 'big' ELSE 'small' END 2. switch equivalent: CASE x WHEN 5 THEN 'five' WHEN 6 THEN 'six' ELSE 'something else' END The else is not required, if there is no matching when then NULL is returned. Some SQL engines add further functions for convenience: - MySQL [1]: IF(), IFNULL(), NULLIF() - PostgreSQL [2]: COALESCE(), NULLIF() I would suggest to implement the CASE statement to stay compliant with SQL syntax (although I find It a bit verbose). Regards Martin [1] http://dev.mysql.com/doc/refman/5.0/en/control-flow-functions.html [2] http://www.postgresql.org/docs/8.1/static/functions-conditional.html ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Hard Coded Encodings
This is a prayer for the plugin programmers! First of all thank you for your contributions! Qgis in it self is able to read and save shapefiles with many different encodings, but some plugins seems to be hardcoded saving files in a specific encoding. One example is the ShapeFileSplitter. Even if I give an ISO8859-15 encoded shapefile as input the resulting splitted files are in UTF-8. And it is a bit troublesome when working with national characters. I fully support another thread suggesting adding a .cpg file for storing the encoding! - Regards Morten (Qgis 1.7.3 standalone and Win 7) -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/Hard-Coded-Encodings-tp7158372p7158372.html Sent from the qgis-user mailing list archive at Nabble.com. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Hard Coded Encodings
Il 06/01/2012 14:17, magerlin ha scritto: This is a prayer for the plugin programmers! Please open a ticket. Thanks. -- Paolo Cavallini - Faunalia www.faunalia.eu Full contact details at www.faunalia.eu/pc ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] New Labeling: conditional labels
On Fri, Jan 6, 2012 at 1:25 PM, Martin Dobias wonder...@gmail.com wrote: SQL recognizes CASE statement with following alternate syntax: 1. if equivalent: CASE WHEN x 10 THEN 'big' ELSE 'small' END Just pushed a commit implementing that. The syntax is: CASE WHEN cond1 THEN exp1 [WHEN cond2 THEN exp2]* [ELSE exp3] END There may be one or more WHEN/THEN clauses. If no condition matches, the expression from ELSE is evaluated - if none is specified then NULL is returned. Note: the other syntax with base expression (CASE x WHEN y THEN z ... END) is not supported yet. Have fun! Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] New Labeling: conditional labels
Love your work Martin! I'll add syntax highlighting for it tonight/tomorrow sometime. - Nathan On Sat, Jan 7, 2012 at 10:31 AM, Martin Dobias wonder...@gmail.com wrote: On Fri, Jan 6, 2012 at 1:25 PM, Martin Dobias wonder...@gmail.com wrote: SQL recognizes CASE statement with following alternate syntax: 1. if equivalent: CASE WHEN x 10 THEN 'big' ELSE 'small' END Just pushed a commit implementing that. The syntax is: CASE WHEN cond1 THEN exp1 [WHEN cond2 THEN exp2]* [ELSE exp3] END There may be one or more WHEN/THEN clauses. If no condition matches, the expression from ELSE is evaluated - if none is specified then NULL is returned. Note: the other syntax with base expression (CASE x WHEN y THEN z ... END) is not supported yet. Have fun! Martin ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
