Data Retrieval and Manipulation // Statamic 3 Docs

Consider the various aspects of Statamic: Entries, Terms, Globals, and Assets. They are all Data. Data can have variables/fields that you can get, set, etc.

Facade Primer

In most cases, the first point of contact with Statamic functionality will be through a Facade.

You can find more details on which ones to use later, but you will find them all in the Statamic\Facades namespace. Of course there are exceptions, but in most cases you will be looking for a Facade.

Each facade will proxy method calls to another class. You can see which class by looking for the getFacadeAccessor method.

Some will simple, direct class mappings, like the YAML facade.

Statamic\Facades\YAML::parse();
// This calls the `parse` method on an instance of `Statamic\Yaml\Yaml`

Some reference a contract, which could change depending on how an application is configured, like the Entry facade. This class references the EntryRepository contract, which by default is bound to the Stache implementation, but could be changed to use databases, etc.

Statamic\Facades\Entry::make();
// This calls the `make` method on an instance of `Statamic\Contracts\Entries\EntryRepository`
// By default it's `Statamic\Stache\Repositories\EntryRepository`, but could change.

The facades will have a @see annotation in their docblock to give you a hint on where to look.

Retrieving Data

You should retrieve data using Facade methods. If you’ve used Laravel, it should feel similar to Eloquent. If it helps, try thinking of each data type mentioned above as a Model. We have a Facade for each of those.

For example, this will find an entry with an ID of f6d5a87.

$entry = \Statamic\Facades\Entry::find('f6d5a87');

Each data type may have more methods for retrieving data. You can also find an entry by it’s slug or URI:

Entry::findBySlug('shoes', 'clothing');
Entry::findByUri('/clothing/shoes');
Entry::findByUri('/vetements/chaussures', 'french'); // For multisite

Like Laravel, if you’re expecting a collection of models, you will receive a collection. However, Statamic will give you a subclass like EntryCollection which will do everything Illuminate\Support\Collection does (docs), with a few more contextual methods at your disposal should you need them.

If you’re expecting a single model you’ll get the corresponding class. (In the example above, you’ll get a Statamic\Entries\Entry instance).

Once you have your objects, you may get data out of them in a handful of ways.

Manipulating Data

Once you have a data instance, you can go to town on it.

$entry->set('foo', 'bar');

This is like adding foo: bar to the front-matter of the entry file.

Once you’re done, go ahead and save it.

$entry->save();

Now it’ll be written to file. Nice.

Events

When you are saving or creating your data instance, the EntrySaving, EntryCreated and the EntrySaved events are dispatched. In some cases, you would rather suppress those events. For example, to prevent causing an infinite loop of EntrySaved events.

$entry->saveQuietly();

Creating Data

Of course, the data had to get there somehow. You can also create data using the corresponding facades.

Each of them has a make method that will give you a new instance. Once you have an instance, you can manipulate it using various methods the same way as if it already existed. Most of the time, these are chainable to give you a nice fluent interface:

use Statamic\Facades\Entry;

$entry = Entry::make()
            ->published()
            ->data(['title' => 'About us', 'subtitle' => 'We are awesome'])
            ->etc(); // and so on...

$entry->save();

Make sure to use the make method, rather than simply new’ing up a class. For example, if a user has customized their application to store entries in a database, they will have a different Entry class. Using Entry::make() will make sure to get the right class.

Getting Field Data

Data

This would be the data defined directly on the item, like what you’d find in an entry’s YAML front-matter. (Some specific keys may be stripped out, like an entry’s id).

id: 123
title: My post
content: The post content

$entry->data();
// Illuminate\Support\Collection([
//    'title' => 'My post', 
//    'content' => 'The post content'
// ])

You can use the get method to get a single field’s data.

$entry->get('title') // 'My post'

More often than not, you’ll want to be using values or value instead.

Values

The “values” are similar to data, except they will also inherit from any originating items. For example, if an entry has been localized from another entry.

id: 123
title: My post
content: The post content

id: 456
origin: 123
title: My localized post

$entry->values();
// Illuminate\Support\Collection([
//    'title' => 'My localized post', 
//    'content' => 'The post content'
// ])

You can use the value method to get a single field’s value.

$entry->value('title'); // 'My localized post'

Augmented Values

Items that support augmentation (e.g. entries) will be able to provide an augmented version of themselves.