udm_add_search_limit
(PHP 4 >= 4.0.5)
udm_add_search_limit -- Add various search limits
Description
bool udm_add_search_limit ( resource agent, int var, string
val)
udm_add_search_limit() adds search restrictions. Returns
TRUE on success or FALSE on failure.
agent - a link to Agent, received after call to udm_alloc_agent().
var - defines parameter, indicating limit.
val - defines the value of the current parameter.
Possible var values:
UDM_LIMIT_URL - defines document URL limitations to limit
the search through subsection of the database. It supports
SQL % and _ LIKE wildcards, where % matches any number of
characters, even zero characters, and _ matches exactly
one character. E.g. http://www.example.___/catalog may stand
for http://www.example.com/catalog and http://www.example.net/catalog.
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.
UDM_LIMIT_LANG - defines document language limitations.
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.
UDM_LIMIT_DATE - defines limitation by date the document
was modified.
Format of parameter value: a string with first character
< or >, then with no space - date in unixtime format,
for example:
Example 1.
<?php
Udm_Add_Search_Limit($udm, UDM_LIMIT_DATE, "<908012006");
?>
If > character is used, then the search will be restricted
to those documents having a modification date greater than
entered, if <, then smaller.
