ItemId - will be used as an id prefix for dynamically added items and as an id suffix for "supporting" HTML elements, such as the add button, item counter, etc. Here is a list of the features we want the dynamic:block tag to support: FunctionĪllow to use a few different dynamic:block tags on the same page dynamicBlocks.js - JavaScript functions for adding / removing the items._add.gsp - the GSP template rendered by the dynamic:block tag that provides supporting HTML elements, such.Parameters and renders a GSP template with HTML elements and JS code If the track number is duplicated in the tags then you can overwrite it. oovy - tag library with the dynamic:block tag which accepts and processes necessary.Then the GSP file may look likeĪnd the dynamic tag library should consist of the following. Assume that you want to allow users to dynamically add inputs toĪ form that contains information about customers (text fields for the first and the last name, and a checkboxįor the "account expired" option), and the form may have from 2 to 5 customers. Let's get to the tag library implementation. HTML blocks to dynamically add and remove (hereinafter called items).This tag eventually should render the following HTML elements: Speeds up the development, since the only thing you need is to specify the tag with necessary parameters. Pure tag library approach helps to avoid HTML and JS clutter in a GSP file and Simple JQuery and pure JavaScript solutions for this feature, but, in general, they are not flexible and cleanĮnough for a Grails application. Right-click on this file, then click on Properties. When you want to give user an option to dynamically add extra inputs for additional information. First, enter the File Explorer (or Windows Explorer) and find the music file that has the metadata you want removed. This post shows how to create Grails tag library for adding and removing identical HTML blocks, which can be used
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