Shows how to use the v:or ViewHelper instead of multiple f:if conditions to select the first value that is not empty and use or output it. Explains how the ViewHelper can be used together with f:if (and any other condition ViewHelper) or as an alternative to it.
| Description | Usage of v:or for multiple else-style conditions |
| Author | NamelessCoder |
| Creation date | 2014-08-24T03:27:23.000Z |
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| <div xmlns:v="http://typo3.org/ns/FluidTYPO3/Vhs/ViewHelpers" | |
| xmlns:f="http://typo3.org/ns/fluid/ViewHelpers"> | |
| <!-- v:or can be used for long chains of conditions where the first | |
| not-empty value gets used --> | |
| <!-- If {person} for example can have three different email addresses' | |
| but you only wish to display one of them: --> | |
| Email: {person.workEmail -> v:or(alternative: person.secretaryEmail) -> v:or(alternative: person.homeEmail)} | |
| <!-- Which displays one of the three email addresses with priority | |
| to the workplace email, secondary priority to a secretary's | |
| email and if neither is defined, person's home email --> | |
| <!-- Can also be used as a chain after any other condition to use | |
| the "alternative" value if neither condition case outputs content --> | |
| {f:if(condition: person.workEmail, then: person.workEmail, else: person.secretaryEmail) -> v:or(alternative: person.homeEmail)} | |
| <!-- Which is exactly the same as the above example with two v:or tags | |
| but as you can see, takes less space and is easier to read --> | |
| <!-- Can also be used to deliver default images when no image exists: --> | |
| <f:image src="{myObject.imageFile -> v:or(alternative: settings.defaultImageFile)}" alt="" /> | |
| <!-- All in all, a more compact alternative to multiple f:if tags which | |
| is ideally used as inline syntax in chains. --> | |
| </div> |