Extension:Page Forms/Creating query forms/es

Los formularios también se pueden utilizar para hacer consultas, en lugar de añadir o editar datos. To do so, use the  page, which displays a form in a manner similar to , but with no associated 'target page'. En cambio, cuando el usuario envia el formulario pulsando el botón "ejecutar respuesta" ve como se ve la plantilla cuando se muestra con los valores que ingresó.

The template that the form uses should most likely contain one or more queries (using Semantic MediaWiki inline queries, Cargo queries, External Data queries, etc.) to query data using values that the user entered. You can see an example of a query form here.



El boton "Ejecutar respuesta"
By default, a button called "Run query" shows up at the bottom of forms if they are accessed via. You can change the location and text of this button, using the tag " " (or " ", etc.) within the form definition.

Consulte la parte etiqueta "entrada estándar" (manual Definición de formularios) para obtener más información.



Formularios de respuesta en la parte superior
If you add the parameter " " to the  tag, the query input field will show up at the top of the results page, instead of the bottom.



creando enlaces para formularios de consulta
Una vez que se ha creado un formulario de consulta puede vincularlo usando una sintaxis similar a esta:



However, the preferred solution, because it's easier and more powerful, is to use the  parser function. A basic call to that function would look like:



Here's the complete syntax of :



Los parámetros son casi idénticos a los utilizados por ; para una explicación completa de los parámetres, vea Special:MyLanguage/Extension:Page Forms/Linking to forms (Special:MyLanguage/Extension:Page Forms/Linking to forms Crear vínculos con los formularios manual).



Incrustar formularios de consulta
You can also embed a query form within another page. Para hacerveso, agregue lo siguiente en una página donde desee que aparezca el formulario de consulta:



De manera similar, puede insertar varios formularios de  en la misma página.



Recargando datos en la consulta
In case query data needs to be pre-loaded, the  should follow the convention:



For example, like this:



The construction   might cause a problem in connection with the wiki markup, and therefore the square brackets—  and   —can be replaced with either   and , or   and  ).

Finally, make sure that the case in the query string matches the declaration in the form (e.g.,  must match   and   must match.

Alternatively, you can preload data by using the  parameter for form fields.

Displaying results automatically
The above technique will produce pre-selected values in the form, but the user will still has to press the "Run query" button to see the results of the query. If you want the results to be displayed automatically as well, you simply have to add  to the query string, like the following:



You can see a live example of this here.

As before, the recommended way to link to such a page internally is with ; such a call would look as follows: