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I came across a problem while using python mapscript's queryByAttribute
function. I have a layer containing the fieldname "STATE" amongst
others. Issuing:
<BR>
<pre class="wiki">try:<br> layer.queryByAttribute(map,"STA","AZ",MS_MULTIPLE)<br>except:<br> print "attribute error"<br> pass<br></pre>
By now the mapserver exception is caught for the faulty attribute. If a draw function is now issued:
<BR>
<pre class="wiki">map.draw()<br></pre>
The following error occurs:
<BR>
<pre class="wiki"><class '_mapscript.MapServerError'>: msDrawMap(): Image handling error. Failed to draw layer named 'countries'. msDBFGetItemIndex(): DBASE file error. Item 'STA' not found.<br></pre>I reproduced it many times and in many occasions. I tried to
clear any result cache but in vain. Shouldn;t mapserver handle the
situation more logically?
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