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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,68 @@ | ||
| <?php | ||
|
|
||
| use Illuminate\Database\Schema\Blueprint; | ||
| use Illuminate\Support\Facades\Schema; | ||
| use Lunar\Base\Migration; | ||
| use Lunar\Models\Attribute; | ||
| use Lunar\Models\AttributeGroup; | ||
| use Lunar\Models\ProductOption; | ||
| use Lunar\Models\ProductOptionValue; | ||
|
|
||
| return new class extends Migration { | ||
| /** | ||
| * Run the migrations. | ||
| */ | ||
| public function up(): void | ||
| { | ||
| /** | ||
| * Model's with position | ||
| */ | ||
| $models = [ | ||
| Attribute::class, | ||
| AttributeGroup::class, | ||
| ProductOption::class, | ||
| ProductOptionValue::class, | ||
| ]; | ||
| /** | ||
| * Ensure that all position values are unique | ||
| */ | ||
| foreach ($models as $model) { | ||
| $model = app($model); | ||
| Schema::table($model->getTable(), function (Blueprint $table) use ($model) { | ||
| DB::table($model->getTable()) | ||
| ->select(array_merge( | ||
| [$model->getKeyName()], | ||
| $model->positionUniqueConstraints() | ||
| )) | ||
| ->orderBy('position') | ||
| ->orderBy('id') | ||
| ->get() | ||
| ->groupBy(fn (stdClass $row, int $key) => | ||
| collect($row) | ||
| ->only($model->positionUniqueConstraints()) | ||
| ->except('position') | ||
| ->join('-') | ||
| )->each | ||
| ->each(fn(stdClass $row, int $key) => $row->position = $key + 1); | ||
| }); | ||
| } | ||
| /** | ||
| * Add unique position index under consideration of | ||
| * the model's position constraints | ||
| */ | ||
| foreach ($models as $model) { | ||
| $model = app($model); | ||
| Schema::table($model->getTable(), function (Blueprint $table) use ($model) { | ||
| $schema = Schema::getConnection() | ||
| ->getDoctrineSchemaManager() | ||
| ->introspectTable($model->getTable()); | ||
| $uniqueIndex = $this->prefix . $table->getTable() . '_unique_position'; | ||
| $uniqueConstraints = array_merge($model->positionUniqueConstraints(), ['position']); | ||
| $table->unsignedBigInteger('position')->default(null)->index()->change(); | ||
| if (!$schema->hasIndex($uniqueIndex)) { | ||
| $table->unique($uniqueConstraints, $uniqueIndex); | ||
| } | ||
| }); | ||
| } | ||
| } | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| <?php | ||
| namespace Lunar\Base\Traits; | ||
| use Illuminate\Database\Eloquent\Builder; | ||
| use Illuminate\Database\Eloquent\Model; | ||
| use Illuminate\Support\Collection; | ||
| use Illuminate\Support\Str; | ||
|
|
||
| trait HasPosition | ||
| { | ||
|
|
||
| final public static function initializeHasPosition(): void | ||
| { | ||
| static::saving(function (Model $model) { | ||
| if ( | ||
| $model->isDirty($model->positionUniqueConstraints()) | ||
| || !(intval($model->position) > 0) | ||
| || $model->query() | ||
| ->where($model->getKeyName(), '!=', $model->getKey()) | ||
| ->wherePosition( | ||
| $model->position, | ||
| $model->getAttributes() | ||
| ) | ||
| ->exists() | ||
| ) { | ||
| $model->position = $model->query() | ||
| ->where($model->getKeyName(), '!=', $model->getKey()) | ||
| ->wherePositionUniqueConstraints( | ||
| $model->getAttributes() | ||
| ) | ||
| ->max('position') + 1; | ||
| } | ||
| }); | ||
| } | ||
|
|
||
| final public function positionUniqueConstraints(): array | ||
| { | ||
| $constraints = ['position']; | ||
|
|
||
| if (!property_exists($this, 'positionUniqueConstraints') | ||
| || !is_array($this->positionUniqueConstraints)) | ||
| { | ||
| return $constraints; | ||
| } | ||
|
|
||
| return array_merge($this->positionUniqueConstraints, $constraints); | ||
| } | ||
|
|
||
| final public function scopeWherePosition(Builder $query, int $position, array|Collection $constraints = []): void | ||
| { | ||
| $query | ||
| ->where('position', $position) | ||
| ->wherePositionUniqueConstraints($constraints); | ||
| } | ||
|
|
||
| final public function scopeWherePositionUniqueConstraints(Builder $query, array|Collection $constraints = []): void | ||
| { | ||
| $constraints = collect($constraints)->except('position'); | ||
| $modelConstraints = collect($this->positionUniqueConstraints())->reject('position'); | ||
|
|
||
| if (count($modelConstraints) && !$constraints->hasAny($modelConstraints->toArray())) { | ||
| throw new \InvalidArgumentException( | ||
| sprintf( | ||
| 'Position constraints "%s" for "%s" not defined!', | ||
| $modelConstraints->diff($constraints)->join('", "', '" and "'), | ||
| get_class($this) | ||
| ) | ||
| ); | ||
| } | ||
|
|
||
| $modelConstraints->each( | ||
| function ($attribute) use ($query, $constraints) { | ||
| if (method_exists($query, Str::camel('scope_' . $attribute))) { | ||
| $method = Str::camel($attribute); | ||
| } else { | ||
| $method = Str::camel('where_' . $attribute); | ||
| } | ||
| $query->{$method}($constraints[$attribute]); | ||
| } | ||
| ); | ||
| } | ||
|
|
||
| public function scopePosition(Builder $query, int $position, ...$constraints): void | ||
| { | ||
| $query->wherePosition($position, $constraints); | ||
| } | ||
|
|
||
| } |
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