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使用Laravel 5.4。爲什麼我不能更新數組中的這個字段?重載元素的間接修改對陣列沒有影響
在我的控制器中,我有一個受保護的字段$game
。
我然後取它的數據
$this->game = GameProgress::where('id', '=', $id)->lockForUpdate()->first();
一些屬性是JSON
列,如regions
字段,集合的一部分是:
#attributes: array:22 [
"id" => 13
"name" => "DEBUGfdsf"
"creator_id" => 1
"game_id" => 1
"difficulty_id" => 2
"players_total" => 2
"round_number" => 1
"stage_name" => "setup"
"active_player_id" => 2
"active_player_turn_id" => 1
"winner_id" => 0
"game_points" => 0
"locked" => 0
"players" => "[{"id": 2, "name": "The Damage Hot", "cards": [{"id": 3, "type": "Armored", "image": "chad.png", "strength": 4, "region_id": 10, "type_image": "armored.png", "region_owned_adder": 2}, {"id": 2, "type": "Infantry", "image": "china.png", "strength": 2, "region_id": 13, "type_image": "infantry.png", "region_owned_adder": 1}, {"id": 2, "type": "Infantry", "image": "kazakhstan.png", "strength":........
我然後訪問/更新這樣的數據:
$this->game['regions'][$region_id - 1]['strength'] = $region_adder + $this->game['regions'][$region_id - 1]['strength'];
但我得到這個:
Indirect modification of overloaded element of App\Models\GameProgress has no effect
我似乎無法解決這個問題。如何操作數組中的字段內容?
似乎'$ this-> game'是一個'GameProgress'實例。它的API是什麼?它提供了一種操縱數據的方式嗎? – Phil
$ this->遊戲是控制器全局可用的受保護變量。它包含GameProgress集合的一個實例。 – TheRealPapa