Diff: Help/SemanticSearchPlugin

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Newer page:	version 4	Last edited on 22 May 2014 3:01	by harold	Revert
Older page:	version 3	Last edited on 9 September 2007 0:16	by harold	Revert

@@ -1,27 +1,102 @@

-~~_short description_~~

+Search for relations/attributes and its values.

-~~! Usage~~

-~~<verbatim>~~

- ~~<?plugin SemanticSearch ?>~~

-~~</verbatim~~ >

+page - relation::object. e.g list all cities: is_a::city = > relation=is_a&s=city

-~~! Arguments~~

+We search for both a relation and if the search is valid for attributes also, and OR combine the result.

-~~page _(default: current~~ pagename~~)_:~~

- ~~The page to execute upon~~ .

+An attribute has just a value, which is a number, and which is for sure no pagename, and its value goes through some units unification . (not yet)

-~~! Example~~

+We can also do numerical comparison and unit lifting with attributes:

+* population > 1000000

+* population > 1 million

-~~<verbatim>~~

-<~~?plugin SemanticSearch ?~~ >

-~~</verbatim>~~

+Limitation:

+* The backends can already do simple AND/OR combination of multiple relations and attributes to search for. Just the UI not. TODO: implement the AND/OR buttons. population < 1 million AND area > 50 km2

+* Due to attribute internals a relation search with matching attribute names will also find those attribute names, but not the values. You must explicitly search for attributes then.

-~~<?plugin SemanticSearch ?~~ >

+The Advanced query can do a freeform query expression with multiple comparison and nesting.

+* "is_a::city and population > 1.000.000 and population < 10.000.000"

+* "(is_a::city or is_a::country) and population < 10.000.000"

-~~! Author~~

-~~PhpWiki:ReiniUrban~~

+== Usage ==

-~~! See Also~~

+{{{

+<<SemanticSearch arguments>>

+}}}

+== Arguments ==

+

+All [[Help:PageList|PageList]] arguments, plus the following ones:

+

+{| class="bordered"

+|-

+! Argument

+! Description

+! Default value

+|-

+| **s**

+| linkvalue query string

+| *

+|-

+| **page**

+| which pages (glob allowed)

+| ~* (all)

+|-

+| **relation**

+| linkname. which relations.

+| all

+|-

+| **attribute**

+| linkname. which attributes.

+| all

+|-

+| **attr_op**

+| a funny written way for equality for pure aesthetic pleasure "All attributes which have this value set"

+| ~:=

+|-

+| **units**

+|

+|-

+| **case_exact**

+|

+| true

+|-

+| **regex**

+| no word splitting, if no regex op is present, defaults to exact match

+| auto

+|-

+| **noform**

+| don't show form with results.

+| false

+|-

+| **noheader**

+| no caption

+| false

+|-

+| **info**

+| valid: pagename, relation, linkto, attribute, value and all other pagelist columns

+| false

+|}

+

+== Example ==

+

+{{{

+<<SemanticSearch>>

+}}}

+

+<<SemanticSearch>>

+

+== Author ==

+* [[Help:Reini Urban|Reini Urban]]

+

+== See Also ==

+* [[Help:TitleSearchPlugin]]

+* [[Help:FullTextSearchPlugin]]

+* [[Help:ExternalSearchPlugin]]

+* [[Help:InterWikiSearchPlugin]]

+

+<noinclude>

----

-PhpWikiDocumentation ~~Help:WikiPlugin~~

+[[ PhpWikiDocumentation]] [[CategoryWikiPlugin]]

+</noinclude>

version 4

Search for relations/attributes and its values.

page - relation::object. e.g list all cities: is_a::city => relation=is_a&s=city

We search for both a relation and if the search is valid for attributes also, and OR combine the result.

An attribute has just a value, which is a number, and which is for sure no pagename, and its value goes through some units unification. (not yet)

We can also do numerical comparison and unit lifting with attributes:

population > 1000000
population > 1 million

Limitation:

The backends can already do simple AND/OR combination of multiple relations and attributes to search for. Just the UI not. TODO: implement the AND/OR buttons. population < 1 million AND area > 50 km2
Due to attribute internals a relation search with matching attribute names will also find those attribute names, but not the values. You must explicitly search for attributes then.

The Advanced query can do a freeform query expression with multiple comparison and nesting.

"is_a::city and population > 1.000.000 and population < 10.000.000"
"(is_a::city or is_a::country) and population < 10.000.000"

Usage

<<SemanticSearch arguments>>

Arguments

All PageList arguments, plus the following ones:

Argument	Description	Default value
s	linkvalue query string	*
page	which pages (glob allowed)	* (all)
relation	linkname. which relations.	all
attribute	linkname. which attributes.	all
attr_op	a funny written way for equality for pure aesthetic pleasure "All attributes which have this value set"	:=
units
case_exact		true
regex	no word splitting, if no regex op is present, defaults to exact match	auto
noform	don't show form with results.	false
noheader	no caption	false
info	valid: pagename, relation, linkto, attribute, value and all other pagelist columns	false