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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Thinktomorrow\Chief\Relations;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Illuminate\Database\Eloquent\Builder;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Illuminate\Database\Eloquent\Model;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class Relation extends Model  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public $timestamps = false;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public $guarded = [];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Set the keys for a save update query.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * We override the default save setup since we do not have a primary key in relation table.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * There should however always be the parent and child references so we can use  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * those to target the record in database.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param Builder $query  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return Builder  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function setKeysForSaveQuery(Builder $query)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $query->where('parent_type', $this->getMorphClass()) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                ->where('parent_id', $this->getKey()) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                ->where('child_type', $this->child_type) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                ->where('child_id', $this->child_id); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $query;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function parent()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $this->morphTo('parent', 'parent_type', 'parent_id'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function child()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $this->morphTo('child', 'child_type', 'child_id'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function parents($child_type, $child_id)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $relations = static::where('child_type', $child_type) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ->where('child_id', $child_id) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ->orderBy('sort', 'ASC') | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ->get();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $relations->map(function (Relation $relation) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $parent = $relation->parent;  | 
            
                            
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                            $parent->relation = $relation;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return $parent;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        });  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function children($parent_type, $parent_id)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $relations = static::where('parent_type', $parent_type) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                            ->where('parent_id', $parent_id) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                            ->orderBy('sort', 'ASC') | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                            ->get();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $relations->map(function (Relation $relation) use ($parent_type, $parent_id) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            // It could be that the child itself is soft-deleted, if this is the case, we will ignore it and move on.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if (!$child = $relation->child) { | 
            
                            
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                                if (!$relation->child()->withTrashed()->first()) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //                if ((!method_exists($childInstance, 'trashed')) || ! $childInstance->onlyTrashed()->find($relation->child_id)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    // If we cannot retrieve it then he collection type is possibly off, this is a database inconsistency and should be addressed  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    throw new \DomainException('Corrupt relation reference. Related child ['.$relation->child_type.'@'.$relation->child_id.'] could not be retrieved for parent [' . $parent_type.'@'.$parent_id.']. Make sure the morph key can resolve to a valid class.'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                return null;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $child->relation = $relation;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return $child;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        })  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // In case of soft-deleted entries, this will be null and should be ignored. We make sure that keys are reset in case of removed child  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        ->reject(function ($child) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return is_null($child);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        })  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        ->values();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    public function delete()  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return static::where('parent_type', $this->parent_type) | 
            
            
                                                                        
                            
            
                                    
            
            
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                                ->where('parent_id', $this->parent_id) | 
            
            
                                                                        
                            
            
                                    
            
            
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                                ->where('child_type', $this->child_type) | 
            
            
                                                                        
                            
            
                                    
            
            
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                                ->where('child_id', $this->child_id) | 
            
            
                                                                        
                            
            
                                    
            
            
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                                ->delete();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function deleteRelationsOf($type, $id)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $relations = static::where(function ($query) use ($type, $id) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return $query->where('parent_type', $type) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                         ->where('parent_id', $id); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        })->orWhere(function ($query) use ($type, $id) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return $query->where('child_type', $type) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                ->where('child_id', $id); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        })->get();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        foreach ($relations as $relation) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $relation->delete();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function deleteAllChildRelationsOf($type, $id)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $relations = static::where(function ($query) use ($type, $id) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return $query->where('parent_type', $type) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                ->where('parent_id', $id); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        })->get();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        foreach ($relations as $relation) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $relation->delete();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function deleteAllParentRelationsOf($type, $id)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $relations = static::where(function ($query) use ($type, $id) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return $query->where('child_type', $type) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                ->where('child_id', $id); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        })->get();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                                     | 
                
                 | 
                        foreach ($relations as $relation) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    132
                 | 
                                    
                                                     | 
                
                 | 
                            $relation->delete();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    133
                 | 
                                    
                                                     | 
                
                 | 
                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    134
                 | 
                                    
                                                     | 
                
                 | 
                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
                | 
                    135
                 | 
                                    
                                                     | 
                
                 | 
                }  | 
            
            
                                                        
            
                                    
            
            
                | 
                    136
                 | 
                                    
                                                     | 
                
                 | 
                 |