Other parameters: Difference between revisions

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Note that the wiki text may be a parser function call which evaluates to an empty string.

The special word ''geturlargs'' can be used as a wiki text to transform URL arguments into variables which can then be accessed via #var (if the Variables extension is installed) or via #dplvar.

The special word ''geturlargs'' can be used as a wiki text to transform URL arguments starting with <code>DPL_</code> into variables which can then be accessed via #var (if the Variables extension is installed) or via #dplvar.

Purpose:

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A typical use would look like this (note the double pipe symbols within the #if.

Calling the following page with &~~cat~~=Country would list countries, omitting the &cat parameter would trigger the error text ~~mnessage~~ (without DPL going to the database):

Calling the following page with &DPL_cat=Country would list countries, omitting the &cat parameter would trigger the error text message (without DPL going to the database):

{{#dpl:

| execandexit = {{#if:{{#dplvar:~~cat~~}}||please specify a category via &~~cat~~= in the URL!}}

| execandexit = {{#if:{{#dplvar:DPL_cat}}||please specify a category via &DPL_cat= in the URL!}}

| resultsheader = pages in category {{#dplvar:~~cat~~}}:\n

| resultsheader = pages in category {{#dplvar:DPL_cat}}:\n

| noresultsheader = there are no pages in category {{#dplvar:~~cat~~}}.\n

| noresultsheader = there are no pages in category {{#dplvar:DPL_cat}}.\n

| count = 5

| category = {{#dplvar:~~cat~~}}

| category = {{#dplvar:DPL_cat}}

}}

</nowiki></pre>