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<?php
namespace Laravel\Scout\Engines;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Support\Arr;
use Illuminate\Support\LazyCollection;
use Illuminate\Support\Str;
use Laravel\Scout\Builder;
class CollectionEngine extends Engine
{
/**
* Create a new engine instance.
*
* @return void
*/
public function __construct()
{
//
}
/**
* Update the given model in the index.
*
* @param \Illuminate\Database\Eloquent\Collection $models
* @return void
*/
public function update($models)
{
//
}
/**
* Remove the given model from the index.
*
* @param \Illuminate\Database\Eloquent\Collection $models
* @return void
*/
public function delete($models)
{
//
}
/**
* Perform the given search on the engine.
*
* @param \Laravel\Scout\Builder $builder
* @return mixed
*/
public function search(Builder $builder)
{
$models = $this->searchModels($builder);
return [
'results' => $models->all(),
'total' => count($models),
];
}
/**
* Perform the given search on the engine.
*
* @param \Laravel\Scout\Builder $builder
* @param int $perPage
* @param int $page
* @return mixed
*/
public function paginate(Builder $builder, $perPage, $page)
{
$models = $this->searchModels($builder);
return [
'results' => $models->forPage($page, $perPage)->all(),
'total' => count($models),
];
}
/**
* Get the Eloquent models for the given builder.
*
* @param \Laravel\Scout\Builder $builder
* @return \Illuminate\Database\Eloquent\Collection
*/
protected function searchModels(Builder $builder)
{
$query = $builder->model->query()
->when(! is_null($builder->callback), function ($query) use ($builder) {
call_user_func($builder->callback, $query, $builder, $builder->query);
})
->when(! $builder->callback && count($builder->wheres) > 0, function ($query) use ($builder) {
foreach ($builder->wheres as $key => $value) {
if ($key !== '__soft_deleted') {
$query->where($key, $value);
}
}
})
->when(! $builder->callback && count($builder->whereIns) > 0, function ($query) use ($builder) {
foreach ($builder->whereIns as $key => $values) {
$query->whereIn($key, $values);
}
})
->orderBy($builder->model->getKeyName(), 'desc');
$models = $this->ensureSoftDeletesAreHandled($builder, $query)
->get()
->values();
if (count($models) === 0) {
return $models;
}
$columns = array_keys($models->first()->toSearchableArray());
return $models->filter(function ($model) use ($builder, $columns) {
if (! $model->shouldBeSearchable()) {
return false;
}
foreach ($columns as $column) {
$attribute = $model->{$column};
if (! is_string($attribute)) {
continue;
}
if (Str::contains(Str::lower($attribute), Str::lower($builder->query))) {
return true;
}
}
return false;
})->values();
}
/**
* Ensure that soft delete handling is properly applied to the query.
*
* @param \Laravel\Scout\Builder $builder
* @param \Illuminate\Database\Query\Builder $query
* @return \Illuminate\Database\Query\Builder
*/
protected function ensureSoftDeletesAreHandled($builder, $query)
{
if (Arr::get($builder->wheres, '__soft_deleted') === 0) {
return $query->withoutTrashed();
} elseif (Arr::get($builder->wheres, '__soft_deleted') === 1) {
return $query->onlyTrashed();
} elseif (in_array(SoftDeletes::class, class_uses_recursive(get_class($builder->model))) &&
config('scout.soft_delete', false)) {
return $query->withTrashed();
}
return $query;
}
/**
* Pluck and return the primary keys of the given results.
*
* @param mixed $results
* @return \Illuminate\Support\Collection
*/
public function mapIds($results)
{
$results = $results['results'];
return count($results) > 0
? collect($results)->pluck($results[0]->getKeyName())->values()
: collect();
}
/**
* Map the given results to instances of the given model.
*
* @param \Laravel\Scout\Builder $builder
* @param mixed $results
* @param \Illuminate\Database\Eloquent\Model $model
* @return \Illuminate\Database\Eloquent\Collection
*/
public function map(Builder $builder, $results, $model)
{
$results = $results['results'];
if (count($results) === 0) {
return $model->newCollection();
}
$objectIds = collect($results)
->pluck($model->getKeyName())
->values()
->all();
$objectIdPositions = array_flip($objectIds);
return $model->getScoutModelsByIds(
$builder, $objectIds
)->filter(function ($model) use ($objectIds) {
return in_array($model->getScoutKey(), $objectIds);
})->sortBy(function ($model) use ($objectIdPositions) {
return $objectIdPositions[$model->getScoutKey()];
})->values();
}
/**
* Map the given results to instances of the given model via a lazy collection.
*
* @param \Laravel\Scout\Builder $builder
* @param mixed $results
* @param \Illuminate\Database\Eloquent\Model $model
* @return \Illuminate\Support\LazyCollection
*/
public function lazyMap(Builder $builder, $results, $model)
{
$results = $results['results'];
if (count($results) === 0) {
return LazyCollection::empty();
}
$objectIds = collect($results)
->pluck($model->getKeyName())
->values()->all();
$objectIdPositions = array_flip($objectIds);
return $model->queryScoutModelsByIds(
$builder, $objectIds
)->cursor()->filter(function ($model) use ($objectIds) {
return in_array($model->getScoutKey(), $objectIds);
})->sortBy(function ($model) use ($objectIdPositions) {
return $objectIdPositions[$model->getScoutKey()];
})->values();
}
/**
* Get the total count from a raw result returned by the engine.
*
* @param mixed $results
* @return int
*/
public function getTotalCount($results)
{
return $results['total'];
}
/**
* Flush all of the model's records from the engine.
*
* @param \Illuminate\Database\Eloquent\Model $model
* @return void
*/
public function flush($model)
{
//
}
/**
* Create a search index.
*
* @param string $name
* @param array $options
* @return mixed
*
* @throws \Exception
*/
public function createIndex($name, array $options = [])
{
//
}
/**
* Delete a search index.
*
* @param string $name
* @return mixed
*/
public function deleteIndex($name)
{
//
}
}