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>udm_add_search_limit</H1
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><P
> (PHP 4 >= 4.0.5)</P
>udm_add_search_limit -- Add various search limits</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN45946"
></A
><H2
>Description</H2
>int <B
CLASS="methodname"
>udm_add_search_limit</B
> ( int agent, int var, string val)<BR
></BR
><P
> <B
CLASS="function"
>udm_add_search_limit()</B
> returns <TT
CLASS="constant"
><B
>TRUE</B
></TT
> on success,
<TT
CLASS="constant"
><B
>FALSE</B
></TT
> on error. Adds search restrictions.
</P
><P
> <TT
CLASS="parameter"
><I
>agent</I
></TT
> - a link to Agent, received after call to
<A
HREF="function.udm-alloc-agent.html"
><B
CLASS="function"
>udm_alloc_agent()</B
></A
>.
</P
><P
> <TT
CLASS="parameter"
><I
>var</I
></TT
> - defines parameter, indicating limit.
</P
><P
> <TT
CLASS="parameter"
><I
>val</I
></TT
> - defines value of the current parameter.
</P
><P
> Possible <TT
CLASS="parameter"
><I
>var</I
></TT
> values:
</P
><P
></P
><UL
><LI
><P
> UDM_LIMIT_URL - defines document URL limitations to limit search
through subsection of database. It supports SQL % and _ LIKE wildcards,
where % matches any number of characters, even zero characters,
and _ matches exactly one character. E.g. http://my.domain.__/catalog
may stand for http://my.domain.ru/catalog and http://my.domain.ua/catalog.
</P
></LI
><LI
><P
> UDM_LIMIT_TAG - defines site TAG limitations. In indexer-conf you can
assign specific TAGs to various sites and parts of a site. Tags in
mnoGoSearch 3.1.x are lines, that may contain metasymbols % and _.
Metasymbols allow searching among groups of tags.
E.g. there are links with tags ABCD and ABCE, and search restriction
is by ABC_ - the search will be made among both of the tags.
</P
></LI
><LI
><P
> UDM_LIMIT_LANG - defines document language limitations.
</P
></LI
><LI
><P
> UDM_LIMIT_CAT - defines document category limitations. Categories are
similar to tag feature, but nested. So you can have one category inside
another and so on. You have to use two characters for each level. Use a
hex number going from 0-F or a 36 base number going from 0-Z.
Therefore a top-level category like 'Auto' would be 01. If it has a
subcategory like 'Ford', then it would be 01 (the parent category) and then
'Ford' which we will give 01. Put those together and you get 0101. If 'Auto'
had another subcategory named 'VW', then it's id would be 01 because it
belongs to the 'Ford' category and then 02 because it's the next category.
So it's id would be 0102. If VW had a sub category called 'Engine' then it's
id would start at 01 again and it would get the 'VW' id 02 and 'Auto' id of
01, making it 010201. If you want to search for sites under that category
then you pass it cat=010201 in the url.
</P
></LI
><LI
><P
> UDM_LIMIT_DATE - defines limitation by date document was modified.
</P
><P
> Format of parameter value: a string with first character < or >,
then with no space - date in unixtime format, for example:
</P
><P
> Udm_Add_Search_Limit($udm,UDM_LIMIT_DATE,"<908012006");
</P
><P
> If > character is used, then search will be restricted to those
documents having modification date greater than entered. If <, then smaller.
</P
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