回答編集履歴
1
追記
answer
CHANGED
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@@ -2,7 +2,7 @@
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2
2
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$depts = Dept::with(['staffs.area'])->get()
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3
3
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->map(function(Dept $dept){
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4
4
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$temp = [];
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5
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-
$dept->staffs->each(function(Staff $staff) use ($temp) {
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5
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+
$dept->staffs->each(function(Staff $staff) use (&$temp) {
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6
6
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if (isset($temp[$staff->area->id])) {
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7
7
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$temp[$staff->area->id]['id'] = $staff->area->id;
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8
8
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$temp[$staff->area->id]['name'] = $staff->area->name;
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