|
What is advanced search?
Advanced search is an application that offers all of the
options of standard search, plus two more:
- Searching within specific fields, such as title, keywords
or description
- Applying Boolean operators
A program or region would typically have a simple search
box on all of their HTML pages, but only one or a few advanced search
pages. If you have an advanced search page for your area, you should
add the areasearchurl parameter to all of your basic search pages, so
that the "Advanced Search" link in the search results will
point to your advanced search page.
The easiest way to build an advanced search page for your area is
to copy the public access or intranet advanced search page:
http://www.epa.gov/epahome/search.html
http://intranet.epa.gov/agcyintr/search.html
and add the filter, fld and areaname parameters for your area
(see "
Coding the basic search box").
Fields available to advanced search
| Field name | Notes |
|---|
| audience | For future expansion – the intended
audience for this page |
| author | Populated from author metatag |
| epa_collection | "metaboth" or
"all". Metaboth indicates document is in WEBI or
iWEBI. |
| epa_group | Populated from "group"
metatag |
| epa_title | Untruncated preferred title |
| homepage | 1 if designated as homepage in WEBI,
otherwise blank or 0 |
| keyword | Keywords from metatags + WEBI
keywords if found |
| metacoll | For future use |
| object-type | Full MIME-Type of document |
| rating | WEBI page rating |
| searchfirst | Composite field used internally
|
| searchsecond | Composite field used internally
|
| textw | Words anywhere in the document |
| tssms | Account code for document |
| url | Preferred URL |
Coding the advanced search form
Advanced search is implemented as a separate servlet in the
epasearch webapp. For public access, the action parameter of your
form should point to
http://nlquery.epa.gov/epasearch/advanced. For intranet, the
URL is
http://nlintrasearch.epa.gov/epasearch/advanced.
All of the parameters and rules for basic search apply to
advanced search with one exception – there is no querytext
parameter. Instead, query text is specified using four pairs of
parameters. The first of each pair is a text box into which the
user types his search terms. The second of each pair is the name
of the field to search in. This is typically implemented using a
dropdown.
In most cases, you should provide a textbox of each of the
four text fields, each paired with a dropdown for selecting the
field to search. The default fieldname is textw (fulltext).
| Text field | Operator | Fieldname
field |
|---|
| anyquery | Any of these terms | anyin |
| allquery | All of these terms | allin |
| nonequery | None of these terms | nonein
|
| phrasequery | Exact phrase | phrasein |
Sample 1. – Region 13 advanced search on public access.
<form method="get" action=http://nlquery.epa.gov/
epasearch/epasearch>
<input type="hidden" name="typeofsearch"
value="area">
<input type="hidden" name="areaname"
value="Region 13">
<input type="hidden" name="filter"
value="samplefilt.hts">
<input type="hidden" name="fld"
value="region13">
<input type="hidden" name="result_template"
value="epafiles_defaults.xsl">
Any of these words: <input name="anyquery"
value="" size="30" />
<select name="anyin">
<option value="textw" selected=
"selected">anywhere in the document</option>
<option value="title">in the title<
/option>
<option value="keywords">in the
keywords</option>
<option value="description">in the
description</option>
<option value="url">in the url
</option>
</select>
<input type="submit" value="Go">
<input type="reset" value="Reset">
All of these words: <input name="allquery"
value="" size="30" />
<select name="allin">
<option value="textw"
selected="selected">anywhere in the document<
/option>
<option value="title">in the
title</option>
<option value="keywords">in the
keywords</option>
<option value="description">in
the description</option>
<option value="url">in the url<
/option>
</select>
None of these words: <input name="nonequery"
value="" size="30" />
<select name="nonein">
<option value="textw" selected="
selected">anywhere in the document</option>
<option value="title">in the
title</option>
<option value="keywords">in the
keywords</option>
<option value="description">in
the description</option>
<option value="url">in the url<
/option>
</select>
This exact phrase: <input name="phrasequery"
value="" size="30" />
<select name="phrasein">
<option value="textw"
selected="selected">anywhere in the document<
/option>
<option value="title">in the
title</option>
<option value="keywords">in
the keywords</option>
<option value="description">
in the description</option>
<option value="url">in the
url</option>
</select>
Document type:
<input type="checkbox" name="doctype"
value="html" checked="checked" />HTML
<input type="checkbox" name="doctype"
value="pdf" checked="checked" />PDF
<input type="checkbox" name="doctype"
value="plain" checked="checked" />Text
<input type="checkbox" name="doctype"
value="msword" checked="checked" />Word
Sort by:
<input type="radio" name="sort"
value="term_relevancy" checked="checked"
/>Relevance
<input type="radio" name="sort"
value="date" />Date
</form>
|
|