CODEWITHSUNDEEP
javagrails
Straightfw
Straightfw

Reputation: 2211

Controlling the number of items on a page in Grails' scaffolding view

Is there any built-in way to allow the user to control the number of items to show simultaneously in Grails' scaffolding view? If not, what is the best way (Grails conventions-wise) of doing this?

Since the parameter max (like offset) is passed in the URL when using the default pagination and changing it is enough to have various list sizes work, I began to wonder if there's some built in way to allow the user to control it through interface? Right now, I'm using a naive brute-force approach of something like this in the generated index.gsp view:

    <a href="index?max=10">10</a>
    <a href="index?max=20">20</a>
    <a href="index?max=50">50</a>

...but I reckon this surely isn't the Grail-ish way of doing this but I couldn't find anything about either a built-in or a cleaner custom (in case of lack of the former) approach. As for the version, I'm using Grails 3.3.8.

Upvotes: 0

Views: 56

Answers (1)

andi
andi

Reputation: 361

There shurely be more grails-ish ways to do it. But I think this comes close.

First use grails install-templates to install the Templates. Then edit the newly generated index.gsp template and add 

<g:if test="\${${propertyName}Count > 10}">
    <g:link action="index" params="\${params + [max:10]}">10</g:link>
    <g:link action="index" params="\${params + [max:20]}">20</g:link>
    <g:link action="index" params="\${params + [max:50]}">50</g:link>
</g:if>

somewhere, perhaps below the g:paginate tag.

Other relevant links:
grails generate-views
The link tag in the gsp docs

Upvotes: 1

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