WFS GetFeature Filter multiplicity

[Yewondwossen Assefa]

Tom,

  The OR operator can only have 2 conditions. In your case you should
change your filter to something like <OR><OR>condition1
condition2</OR>condition3</OR>.

Later,

Kralidis,Tom [Burlington] wrote:

> Hi,
>
> Can MapServer WFS Server handle filter with multiple conditions within
> logical operators?
>
> I find that if I try a PropertyIsLike query within an Or block, it only
> handles up to two PropertyIsLike conditions.
>
> This works:
>
> <Filter>
>  <PropertyIsLike wildCard='*' singleChar='.' escape='!'>
>   <PropertyName>abstract</PropertyName>
>   <Literal>mercalli</Literal>
>  </PropertyIsLike>
> </Filter>
>
> This works:
>
> <Filter>
>  <Or>
>   <PropertyIsLike wildCard='*' singleChar='.' escape='!'>
>    <PropertyName>title</PropertyName>
>    <Literal>mercalli</Literal>
>   </PropertyIsLike>
>   <PropertyIsLike wildCard='*' singleChar='.' escape='!'>
>    <PropertyName>abstract</PropertyName>
>    <Literal>mercalli</Literal>
>   </PropertyIsLike>
>  </Or>
> </Filter>
>
> This does not work:
>
> <Filter>
>  <Or>
>   <PropertyIsLike wildCard='*' singleChar='.' escape='!'>
>    <PropertyName>title</PropertyName>
>    <Literal>mercalli</Literal>
>   </PropertyIsLike>
>   <PropertyIsLike wildCard='*' singleChar='.' escape='!'>
>    <PropertyName>abstract</PropertyName>
>    <Literal>mercalli</Literal>
>   </PropertyIsLike>
>   <PropertyIsLike wildCard='*' singleChar='.' escape='!'>
>    <PropertyName>keywords</PropertyName>
>    <Literal>mercalli</Literal>
>   </PropertyIsLike>
>  </Or>
> </Filter>
>
>
> It looks like the third PropertyIsLike condition is totally ignored and
> not queried.  That is, if I enter a search term which I know will only
> satisfy the 3rd PropertyIsLike condition, I get no results.
>
> I haven't tried this with the other operators, but I'm guessing the
> behaviour would be the same.
>
> ..Tom
>
>


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Assefa Yewondwossen
Software Analyst

Email: assefa at dmsolutions.ca
http://www.dmsolutions.ca/

Phone: (613) 565-5056 (ext 14)
Fax:   (613) 565-0925
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