BookStack/app/Entity.php
2016-11-12 13:21:16 +00:00

218 lines
6.1 KiB
PHP

<?php namespace BookStack;
class Entity extends Ownable
{
/**
* Compares this entity to another given entity.
* Matches by comparing class and id.
* @param $entity
* @return bool
*/
public function matches($entity)
{
return [get_class($this), $this->id] === [get_class($entity), $entity->id];
}
/**
* Checks if an entity matches or contains another given entity.
* @param Entity $entity
* @return bool
*/
public function matchesOrContains(Entity $entity)
{
$matches = [get_class($this), $this->id] === [get_class($entity), $entity->id];
if ($matches) return true;
if (($entity->isA('chapter') || $entity->isA('page')) && $this->isA('book')) {
return $entity->book_id === $this->id;
}
if ($entity->isA('page') && $this->isA('chapter')) {
return $entity->chapter_id === $this->id;
}
return false;
}
/**
* Gets the activity objects for this entity.
* @return \Illuminate\Database\Eloquent\Relations\MorphMany
*/
public function activity()
{
return $this->morphMany(Activity::class, 'entity')->orderBy('created_at', 'desc');
}
/**
* Get View objects for this entity.
*/
public function views()
{
return $this->morphMany(View::class, 'viewable');
}
/**
* Get the Tag models that have been user assigned to this entity.
* @return \Illuminate\Database\Eloquent\Relations\MorphMany
*/
public function tags()
{
return $this->morphMany(Tag::class, 'entity')->orderBy('order', 'asc');
}
/**
* Get this entities restrictions.
*/
public function permissions()
{
return $this->morphMany(EntityPermission::class, 'restrictable');
}
/**
* Check if this entity has a specific restriction set against it.
* @param $role_id
* @param $action
* @return bool
*/
public function hasRestriction($role_id, $action)
{
return $this->permissions()->where('role_id', '=', $role_id)
->where('action', '=', $action)->count() > 0;
}
/**
* Check if this entity has live (active) restrictions in place.
* @param $role_id
* @param $action
* @return bool
*/
public function hasActiveRestriction($role_id, $action)
{
return $this->getRawAttribute('restricted') && $this->hasRestriction($role_id, $action);
}
/**
* Get the entity jointPermissions this is connected to.
* @return \Illuminate\Database\Eloquent\Relations\MorphMany
*/
public function jointPermissions()
{
return $this->morphMany(JointPermission::class, 'entity');
}
/**
* Allows checking of the exact class, Used to check entity type.
* Cleaner method for is_a.
* @param $type
* @return bool
*/
public static function isA($type)
{
return static::getType() === strtolower($type);
}
/**
* Get entity type.
* @return mixed
*/
public static function getType()
{
return strtolower(static::getClassName());
}
/**
* Get an instance of an entity of the given type.
* @param $type
* @return Entity
*/
public static function getEntityInstance($type)
{
$types = ['Page', 'Book', 'Chapter'];
$className = str_replace([' ', '-', '_'], '', ucwords($type));
if (!in_array($className, $types)) {
return null;
}
return app('BookStack\\' . $className);
}
/**
* Gets a limited-length version of the entities name.
* @param int $length
* @return string
*/
public function getShortName($length = 25)
{
if (strlen($this->name) <= $length) return $this->name;
return substr($this->name, 0, $length - 3) . '...';
}
/**
* Perform a full-text search on this entity.
* @param string[] $fieldsToSearch
* @param string[] $terms
* @param string[] array $wheres
* @return mixed
*/
public function fullTextSearchQuery($fieldsToSearch, $terms, $wheres = [])
{
$exactTerms = [];
$fuzzyTerms = [];
$search = static::newQuery();
foreach ($terms as $key => $term) {
$term = htmlentities($term, ENT_QUOTES);
$term = preg_replace('/[+\-><\(\)~*\"@]+/', ' ', $term);
if (preg_match('/&quot;.*?&quot;/', $term) || is_numeric($term)) {
$term = str_replace('&quot;', '', $term);
$exactTerms[] = '%' . $term . '%';
} else {
$term = '' . $term . '*';
if ($term !== '*') $fuzzyTerms[] = $term;
}
}
$isFuzzy = count($exactTerms) === 0 && count($fuzzyTerms) > 0;
// Perform fulltext search if relevant terms exist.
if ($isFuzzy) {
$termString = implode(' ', $fuzzyTerms);
$fields = implode(',', $fieldsToSearch);
$search = $search->selectRaw('*, MATCH(name) AGAINST(? IN BOOLEAN MODE) AS title_relevance', [$termString]);
$search = $search->whereRaw('MATCH(' . $fields . ') AGAINST(? IN BOOLEAN MODE)', [$termString]);
}
// Ensure at least one exact term matches if in search
if (count($exactTerms) > 0) {
$search = $search->where(function ($query) use ($exactTerms, $fieldsToSearch) {
foreach ($exactTerms as $exactTerm) {
foreach ($fieldsToSearch as $field) {
$query->orWhere($field, 'like', $exactTerm);
}
}
});
}
$orderBy = $isFuzzy ? 'title_relevance' : 'updated_at';
// Add additional where terms
foreach ($wheres as $whereTerm) {
$search->where($whereTerm[0], $whereTerm[1], $whereTerm[2]);
}
// Load in relations
if ($this->isA('page')) {
$search = $search->with('book', 'chapter', 'createdBy', 'updatedBy');
} else if ($this->isA('chapter')) {
$search = $search->with('book');
}
return $search->orderBy($orderBy, 'desc');
}
}