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Package trex-collection
Short Description Helpers to manipulate collections
License MIT
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Informations about the package trex-collection
TRex Collection
Install
$ composer require raphhh/trex-collection
Usages
Collection
Collection is just an ArrayObject implementing some additional methods.
Because Collection is just a facade, you can keep coding with ArrayObject (or any object castable into an array) and implement some TRex traits by yourself:
Filter
Provide methods to filter a collection.
Filter values with a callback: filter
Apply a callback to the values: each
Extract a part of the list: extract
Comparator
Merge any collections: merge, mergeA
Find the difference between any collections: diff, diffA, diffK
Find the intersection between any collections: intersect, intersectA, intersectK
Sorter
Reindex collection: reindex
Sort collection: sort
Group by specific values: groupBy
Values
Retrieve first value: first
Retrieve last value: last
Check is has value: has
Keys
Search keys: search
Extract keys: keys
Sorter
Sort a collection by a property or a method result.
You need to extends the class TRex\Collection\AbstractSorter.
In the method invoke, you have to return the value to sort for each object the collection content.
Note that the TRex sorter implements duck typing. You should create a sorter by key to access to the data, and not by type of collection content. For example, if you want to sort a collection of objects by them property '$foo', you should call your sorter 'FooSorter', anyway the objects the collection content.
Filter
You need to extends the class TRex\Collection\AbstractFilter.
In the method invoke, you have to return the value to compare for each object the collection content.
Note that the TRex filter implements duck typing. You should create a filter by key to access to the data, and not by type of collection content. For example, if you want to sort a collection of objects by them property '$foo', you should call your sorter 'FooSorter', anyway the objects the collection content.
