Re: [Semediawiki-user] Question on semantic query search engine

[Karsten K. <kru...@my...>]

Hi Natalja,

one way is the use of the extension
variables<http://www.mediawiki.org/wiki/Extension:Variables>

You can define three variables (one for every operation) which will be
filled depending on the selected operation. Then you test, which operation
was set.

In a switch routine you define what should be done for every operation.

For example:

<!-- Set the variables -->
{{#if: {{{opGreaterThan|}}} | {{#vardefine:checkGreaterThan|1}}
|{{#vardefine:checkGreaterThan|0}} }}
{{#if: {{{opSmallerThan|}}} | {{#vardefine:checkSmallerThan|1}}
|{{#vardefine:checkSmallerThan|0}} }}
{{#if: {{{opEqual|}}} | {{#vardefine:checkEqual1}}
|{{#vardefine:checkEqual|0}} }}

<!-- Create check variable -->
{{#vardefine:check|{{#var:checkGreaterThan}}{{#var:checkSmallerThan}}{{#var:checkEqual}}}}

<!-- Switch routine -->
{{#switch:{{#var:check}}
|100=
{{#ask:[[Mass::>{{{mass|}}}]]
|?Mass
}}
|010=
{{#ask:[[Mass::<{{{mass|}}}]]
|?Mass
}}
|001=
{{#ask:[[Mass::+{{{mass|}}}]]
|?Mass
}}
}}


best regards
Karsten

2012/10/17 Natalia Ortiz <nat...@gm...>

> Hi all,
>
> I just have one more question to ask. Do you know if it would be possible
> to make the operator (>) variable? Maybe creating a property  (string or
> code) with the values <,>,= and put something like:
>
> {{#ask:[[Mass::{{{operator|}}}{{{mass|}}}]]
> |?Mass
> }}
>
> Kind regards,
> Natalia
>
>
> 2012/10/17 Natalia Ortiz <nat...@gm...>
>
>> It worked!
>> Thank you very much for your help.
>>
>> Natalia
>>
>>
>> 2012/10/17 Karsten Krumrück <kru...@my...>
>>
>>> Hi Natalia,
>>>
>>> sorry for late answer.
>>>
>>> I´ve tried to create a query form which allows the usage of <>= for
>>> numbers.
>>>
>>> And in in my test for my local wiki the following was successful:
>>>
>>> [[ArticleYear::>{{{ArticleYear|}}}]]
>>>
>>> So in your case the right expression should be:
>>>
>>> {{#ask:[[Mass::>{{{mass|}}}]]
>>> |?Mass
>>> }}
>>>
>>> This expression shows all records with Mass greather than the value
>>> which is given in the query form.
>>>
>>> If you want to search for records where mass is equal to the value from
>>> the query form, the expression should be:
>>>
>>> {{#ask:[[Mass::+{{{mass|}}}]]
>>> |?Mass
>>> }}
>>>
>>> best regards
>>>
>>> Karsten Krumrück
>>>
>>>
>>> 2012/10/16 Natalia Ortiz <nat...@gm...>
>>>
>>>> Hi all,
>>>>
>>>> basically what I would like to do is the same as shown in this example (
>>>>
>>>> http://discoursedb.org/wiki/Special:RunQuery/Item_query?ItemQuerier%5Bauthor%5D=A&ItemQuerier%5Bsource%5D=New&wpRunQuery=true
>>>> )
>>>> - create my page with my own queries but to look for numbers and be
>>>> able to
>>>> use >,<,= of parameters.
>>>>
>>>> That is where I am having problems:
>>>>
>>>> {{#ask:[[Mass::{{{mass|}}}]]
>>>> |?Mass
>>>> }}
>>>>
>>>> This already gives me a warning. So I have to problems:
>>>> - I am not able to look for numeric parameters
>>>> - Introduce >,<,= in the code above somehow.
>>>>
>>>> Thanks for your help!
>>>>
>>>> Natalia
>>>>
>>>> 2012/10/16 Yaron Koren <ya...@wi...>
>>>>
>>>> > Hi,
>>>> >
>>>> > Any queries can be run - Special:RunQuery doesn't have any effect on
>>>> the
>>>> > contents of pages; it just provides a framework to display them.
>>>> >
>>>> > -Yaron
>>>> >
>>>> >
>>>> > On Tue, Oct 16, 2012 at 5:59 AM, Yury Katkov <kat...@gm...
>>>> >wrote:
>>>> >
>>>> >> Hi Natalia!
>>>> >>
>>>> >> we have the comparators available in semantic queries
>>>> >>
>>>> >>
>>>> http://semantic-mediawiki.org/wiki/Help:Selecting_pages#Greater_than.2C_less_than
>>>> >> ,
>>>> >> but I don't know whether you can use them in Query Forms or not.
>>>> >> Guys, any ideas?
>>>> >>
>>>> >> -----
>>>> >> Yury Katkov, WikiVote
>>>> >>
>>>> >>
>>>> >>
>>>> >>
>>>> >> On Mon, Oct 15, 2012 at 7:48 PM, Natalia Ortiz <nat...@gm...>
>>>> >> wrote:
>>>> >>
>>>> >> > Hi all,
>>>> >> >
>>>> >> > I am trying to make a "search page" using queries in a wiki. I
>>>> would
>>>> >> like
>>>> >> > to let the user search text (system engineer in the example) and
>>>> numbers
>>>> >> > (mass)  >,< or = to a value and I am having some trouble to
>>>> achieve the
>>>> >> > query for numbers (>,<, = are not numeric characters).
>>>> >> >
>>>> >> > In the template I wrote this query following the example shown in (
>>>> >> >
>>>> >> >
>>>> >>
>>>> http://discoursedb.org/wiki/Special:RunQuery/Item_query?ItemQuerier%5Bauthor%5D=A&ItemQuerier%5Bsource%5D=New&wpRunQuery=true
>>>> >> > ).
>>>> >> > The ~* seems to be only right for text values but not for numeric
>>>> >> values.
>>>> >> > What is the right way to ask for a numeric parameter? And how
>>>> could I
>>>> >> > introduce the >,<,= in the query? So that the search is more
>>>> flexible
>>>> >> for
>>>> >> > the user.
>>>> >> >
>>>> >> > {{#ask:[[System
>>>> Engineer::~*{{{sysengineer|}}}*]][[Mass::{{{mass|}}}]]
>>>> >> > |?System Engineer
>>>> >> > |?Mass
>>>> >> > }}
>>>> >> >
>>>> >> > and then in the form I wrote this for the search:
>>>> >> >
>>>> >> > {| class="formtable"
>>>> >> > ! System Engineer:
>>>> >> > | {{{field|sysengineer}}}
>>>> >> > |-
>>>> >> > ! Mass:
>>>> >> > | {{{field|mass}}}
>>>> >> > |}
>>>> >> > {{{end template}}}
>>>> >> >
>>>> >> > Thanks a lot!
>>>> >> >
>>>> >> > Natalia
>>>> >> >
>>>> >> >
>>>> >>
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>>>> >>
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>>>>
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>>>
>>>
>>
>