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<?php |
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namespace Bmatovu\Publishable; |
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/** |
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* @method static static|\Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Query\Builder withDrafts() |
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* @method static static|\Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Query\Builder onlyDrafts() |
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* @method static static|\Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Query\Builder onlyPublished() |
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*/ |
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trait Publishable |
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{ |
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/** |
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* Boot the has-drafts trait for a model. |
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* |
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* @return void |
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*/ |
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public static function bootPublishable() |
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{ |
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static::addGlobalScope(new PublishedScope); |
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} |
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/** |
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* Initialize this trait for an instance. |
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* |
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* @return void |
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*/ |
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public function initializePublishable() |
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{ |
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$this->dates[] = $this->getPublishedAtColumn(); |
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} |
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/** |
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* Save instance of this model as published. |
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* |
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* @param array $options |
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* |
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* @return bool |
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*/ |
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View Code Duplication |
public function publish(array $options = []) |
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{ |
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// https://laravel-news.com/laravel-model-events-getting-started |
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// https://gist.github.com/scrubmx/7fc20663ce2b3ac103a2879915b572be |
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// https://www.google.com/search?q=laravel+register+fire+model+event&oq=laravel+register+fire+model+event |
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// If the "publishing" event returns false we bail out immediately and return false, |
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// indicating that the save failed. This provides a chance for any |
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// listeners to cancel save operations if validations fail or whatever. |
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if ($this->fireModelEvent('publishing') === false) { |
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return false; |
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} |
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$this->{$this->getPublishedAtColumn()} = $this->freshTimestamp(); |
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$saved = parent::save($options); |
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if ($saved) { |
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$this->fireModelEvent('published', false); |
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} |
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return $saved; |
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} |
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/** |
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* Toogle model instance state to non-published. |
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* |
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* @param array $options |
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* |
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* @return bool |
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*/ |
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View Code Duplication |
public function unpublish(array $options = []) |
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{ |
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if ($this->fireModelEvent('unpublishing') === false) { |
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return false; |
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} |
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$this->{$this->getPublishedAtColumn()} = null; |
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$saved = parent::save($options); |
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if ($saved) { |
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$this->fireModelEvent('unpublished', false); |
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} |
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return $saved; |
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} |
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/** |
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* Save instance of this model as a draft. |
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* @param array $options |
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* |
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* @return bool |
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*/ |
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public function draft(array $options = []) |
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{ |
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return $this->unpublish($options); |
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} |
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/** |
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* Register a "publishing" model event callback with the dispatcher. |
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* |
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* @param \Closure|string $callback |
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* |
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* @return void |
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*/ |
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public static function publishing($callback) |
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{ |
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static::registerModelEvent('publishing', $callback); |
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} |
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/** |
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* Register a "published" model event callback with the dispatcher. |
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* |
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* @param \Closure|string $callback |
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* |
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* @return void |
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*/ |
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public static function published($callback) |
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{ |
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static::registerModelEvent('published', $callback); |
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} |
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/** |
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* Register a "unpublishing" model event callback with the dispatcher. |
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* |
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* @param \Closure|string $callback |
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* |
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* @return void |
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*/ |
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public static function unpublishing($callback) |
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{ |
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static::registerModelEvent('unpublishing', $callback); |
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} |
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/** |
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* Register a "unpublished" model event callback with the dispatcher. |
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* |
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* @param \Closure|string $callback |
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* |
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* @return void |
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*/ |
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public static function unpublished($callback) |
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{ |
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static::registerModelEvent('unpublished', $callback); |
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} |
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/** |
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* Determine if the model instance is published. |
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* |
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* @return bool |
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*/ |
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public function isPublished() |
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{ |
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return ! is_null($this->{$this->getPublishedAtColumn()}); |
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} |
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/** |
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* Get the name of the "published at" column. |
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* |
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* @return string |
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*/ |
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public function getPublishedAtColumn() |
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{ |
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return defined('static::PUBLISHED_AT') ? static::PUBLISHED_AT : 'published_at'; |
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} |
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/** |
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* Get the fully qualified "published at" column. |
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* @return string |
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*/ |
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public function getQualifiedPublishedAtColumn() |
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{ |
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return $this->qualifyColumn($this->getPublishedAtColumn()); |
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} |
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} |
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In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: