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1 |
1 | <?php |
2 | |
3 | namespace Baril\Bonsai\Relations; |
4 | |
5 | use Baril\Bonsai\TreeException; |
6 | use Illuminate\Database\Eloquent\Model; |
7 | use Illuminate\Database\Eloquent\Relations\BelongsToMany; |
8 | |
9 | class Closure extends BelongsToMany |
10 | { |
11 | protected $depth = null; |
12 | |
13 | public function orderByDepth($direction = 'asc') |
14 | { |
15 | return $this->orderBy($this->table . '.depth', $direction); |
16 | } |
17 | |
18 | public function upToDepth($depth) |
19 | { |
20 | $this->depth = $depth; |
21 | return $this->wherePivot('depth', '<=', $depth); |
22 | } |
23 | |
24 | public function excludingSelf() |
25 | { |
26 | $this->pivotWheres[] = ['depth', '>', 0]; |
27 | return $this->whereRaw("$this->table.depth > 0"); // whereRaw makes it easier to remove the clause if needed |
28 | } |
29 | |
30 | public function includingSelf() |
31 | { |
32 | foreach ($this->pivotWheres as $k => $where) { |
33 | if ($where === ['depth', '>', 0]) { |
34 | unset($this->pivotWheres[$k]); |
35 | } |
36 | } |
37 | $this->pivotWheres = array_values($this->pivotWheres); |
38 | |
39 | $query = $this->getBaseQuery(); |
40 | $sql = "$this->table.depth > 0"; |
41 | foreach ($query->wheres as $k => $where) { |
42 | if ($where === ['type' => 'raw', 'sql' => $sql, 'boolean' => 'and']) { |
43 | unset($query->wheres[$k]); |
44 | } |
45 | } |
46 | $query->wheres = array_values($query->wheres); |
47 | return $this; |
48 | } |
49 | |
50 | /** |
51 | * Get the pivot attributes from a model. |
52 | * |
53 | * @param \Illuminate\Database\Eloquent\Model $model |
54 | * @return array |
55 | */ |
56 | protected function migratePivotAttributes(Model $model) |
57 | { |
58 | $values = parent::migratePivotAttributes($model); |
59 | if (array_key_exists('depth', $values) && $this->depth !== null) { |
60 | $values['_remaining_depth'] = $this->depth - $values['depth']; |
61 | } |
62 | |
63 | return $values; |
64 | } |
65 | |
66 | // Since the Closure relation is read-only, all the methods below will |
67 | // throw an exception. |
68 | |
69 | protected function readOnly() |
70 | { |
71 | throw new TreeException("The $this->relationName relation is read-only!"); |
72 | } |
73 | |
74 | public function save(Model $model, array $pivotAttributes = [], $touch = true) |
75 | { |
76 | $this->readOnly(); |
77 | } |
78 | |
79 | public function saveMany($models, array $pivotAttributes = []) |
80 | { |
81 | $this->readOnly(); |
82 | } |
83 | |
84 | public function create(array $attributes = [], array $joining = [], $touch = true) |
85 | { |
86 | $this->readOnly(); |
87 | } |
88 | |
89 | public function createMany(iterable $records, array $joinings = []) |
90 | { |
91 | $this->readOnly(); |
92 | } |
93 | |
94 | public function toggle($ids, $touch = true) |
95 | { |
96 | $this->readOnly(); |
97 | } |
98 | |
99 | public function syncWithoutDetaching($ids) |
100 | { |
101 | $this->readOnly(); |
102 | } |
103 | |
104 | public function sync($ids, $detaching = true) |
105 | { |
106 | $this->readOnly(); |
107 | } |
108 | |
109 | public function attach($id, array $attributes = [], $touch = true) |
110 | { |
111 | $this->readOnly(); |
112 | } |
113 | |
114 | public function detach($ids = null, $touch = true) |
115 | { |
116 | $this->readOnly(); |
117 | } |
118 | } |