https://github.com/dimaip/dimaip.groupby

FlowQuery groupBy operation to group arrays by EEL discriminator
https://github.com/dimaip/dimaip.groupby

neoscms

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FlowQuery groupBy operation to group arrays by EEL discriminator

• Host: GitHub
• URL: https://github.com/dimaip/dimaip.groupby
• Owner: dimaip
• License: gpl-3.0
• Created: 2016-09-27T18:35:06.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2023-09-28T12:07:56.000Z (almost 3 years ago)
• Last Synced: 2025-03-18T18:02:29.609Z (over 1 year ago)
• Topics: neoscms
• Language: PHP
• Size: 48.8 KB
• Stars: 6
• Watchers: 3
• Forks: 4
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# Dimaip.GroupBy

FlowQuery groupBy operation to group arrays by EEL discriminator

Once upon a time I had a list of persons nodes, and I needed to group them by first letter.

So I decided there should be a generic way to group array of nodes into subgroups, based on an EEL expression... And here it is!

## TL;DR

Install: `composer require dimaip/groupby`

Use:

```

groupedNodesByFirstLetterOfLastName = ${q(nodes).groupBy('String.substring(node.properties.lastName, 0, 1)')}

```

## Full example

Once you have grouped the nodes, you can render them any way you like: with Fluid (yikes!) or with Fusion (yay!).

```

prototype(Name.Space:GroupedList) < prototype(TYPO3.TypoScript:Collection) {

	@process.tmpl = ${'
' + value + '
'}

	@context.nodes = ${q(site).find('[instanceof Name.Space:Person]')}

	collection = ${nodes.groupBy('String.substring(node.properties.lastName, 0, 1)')}

	itemName = 'nodes'

	itemKey = 'firstLetter'

	itemRenderer = TYPO3.TypoScript:Collection {

		@process.tmpl = ${'


' + firstLetter + '

' + value + '

'}

		collection = ${nodes}

		itemName = 'node'

		itemRenderer = ${'
' + node.properties.firstName + ' ' + node.properties.lastName + '
'}

	}

}

```


In a similar way you can group nodes based on a very complex EEL expressions, let your imagination fly!

## Credit

Initial development sponsored by Stefan Johänntgen