GroupedFor ViewHelper <f:groupedFor>¶

Grouped loop ViewHelper. Loops through the specified values.

The groupBy argument also supports property paths.

Using this ViewHelper can be a sign of weak architecture. If you end up using it extensively you might want to fine-tune your "view model" (the data you assign to the view).

<f:groupedFor each="{0: {name: 'apple', color: 'green'}, 1: {name: 'cherry', color: 'red'}, 2: {name: 'banana', color: 'yellow'}, 3: {name: 'strawberry', color: 'red'}}"
    as="fruitsOfThisColor" groupBy="color"
>
    <f:for each="{fruitsOfThisColor}" as="fruit">
        {fruit.name}
    </f:for>
</f:groupedFor>

apple cherry strawberry banana

<ul>
    <f:groupedFor each="{0: {name: 'apple', color: 'green'}, 1: {name: 'cherry', color: 'red'}, 2: {name: 'banana', color: 'yellow'}, 3: {name: 'strawberry', color: 'red'}}" as="fruitsOfThisColor" groupBy="color" groupKey="color">
        <li>
            {color} fruits:
            <ul>
                <f:for each="{fruitsOfThisColor}" as="fruit" key="label">
                    <li>{label}: {fruit.name}</li>
                </f:for>
            </ul>
        </li>
    </f:groupedFor>
</ul>

<ul>
    <li>green fruits
        <ul>
            <li>0: apple</li>
        </ul>
    </li>
    <li>red fruits
        <ul>
            <li>1: cherry</li>
        </ul>
        <ul>
            <li>3: strawberry</li>
        </ul>
    </li>
    <li>yellow fruits
        <ul>
            <li>2: banana</li>
        </ul>
    </li>
</ul>

Source code

Go to the source code of this ViewHelper: GroupedForViewHelper.php (GitHub).

Arguments

The following arguments are available for the groupedFor ViewHelper:

each ¶

Type

array

Required

1

The array or \SplObjectStorage to iterated over

as ¶

Type

string

Required

1

The name of the iteration variable

groupBy ¶

Type

string

Required

1

Group by this property

groupKey ¶

Type

string

Default

'groupKey'

The name of the variable to store the current group