Template:Evenodd: Difference between revisions
(I guess caching parameterless templates is a smart thing to do... it just doesn't agree with global variables.) |
(fixed override feature, hopefully) |
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<onlyinclude>{{# | <onlyinclude>{{#switch: {{{1|}}} | ||
| even = {{#vardefineecho:evenodd|even}} | |||
| odd = {{#vardefineecho:evenodd|odd}} | |||
| {{#switch: {{#var:evenodd}} | | {{#switch: {{#var:evenodd}} | ||
| odd = {{#vardefineecho:evenodd|even}} | | odd = {{#vardefineecho:evenodd|even}} | ||
| {{#vardefineecho:evenodd|odd}}<!--includes case "even"--> | |||
}} | }} | ||
}}</onlyinclude> | }}</onlyinclude> | ||
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This template requires a small workaround to avoid the MediaWiki parser caching the template and not persisting the variable properly. It must be called with an empty argument (or any sort of argument), like so: <code><nowiki>{{Evenodd|}}</nowiki></code> - note the pipe. This is placed wherever an "odd" or "even" value is needed that's the opposite of the previous instance of this template on the same page. | This template requires a small workaround to avoid the MediaWiki parser caching the template and not persisting the variable properly. It must be called with an empty argument (or any sort of argument), like so: <code><nowiki>{{Evenodd|}}</nowiki></code> - note the pipe. This is placed wherever an "odd" or "even" value is needed that's the opposite of the previous instance of this template on the same page. | ||
When first called, it returns "odd", unless "even" is passed | When first called, it returns "odd", unless "even" is passed as an argument: {{Usage|even}}. Pass in "even" or "odd" in any instance to override the current value of the variable and start over from that point. | ||
{{Cat|Utility Templates}} | {{Cat|Utility Templates}} | ||
Latest revision as of 04:30, August 28, 2012
odd
Purpose
Each time this template is used within a given page, it toggles the variable "evenodd" between "even" and "odd", returning the resulting value. This can be used to dynamically switch between two different displays, such as rows in a list.
Usage
This template requires a small workaround to avoid the MediaWiki parser caching the template and not persisting the variable properly. It must be called with an empty argument (or any sort of argument), like so: {{Evenodd|}} - note the pipe. This is placed wherever an "odd" or "even" value is needed that's the opposite of the previous instance of this template on the same page.
When first called, it returns "odd", unless "even" is passed as an argument: {{Evenodd| even }}. Pass in "even" or "odd" in any instance to override the current value of the variable and start over from that point.