我有N个数组。具有n个grade_items子数组。就是这样。
array:2 [
0 => array:10 [
"id" => 9
"course_id" => 6
"semester_id" => 2
"name" => "Assignment"
"total_score" => 10
"grade_items" => array:1 [
0 => array:7 [
"id" => 5
"gradelist_id" => 9
"student_course_id" => 11
"score" => 8
"created_at" => "2020-04-21T03:31:20.000000Z"
"updated_at" => "2020-04-21T20:04:10.000000Z"
]
]
]
1 => array:10 [
"id" => 10
"course_id" => 6
"semester_id" => 2
"name" => "Pop Quiz"
"total_score" => 20
"grade_items" => array:1 [
0 => array:7 [
"id" => 6
"gradelist_id" => 10
"student_course_id" => 11
"score" => null
"created_at" => "2020-04-22T00:11:17.000000Z"
"updated_at" => "2020-04-22T00:11:17.000000Z"
]
]
]
]
我正在尝试从student_course_id相同的每个数组中添加每个grade_item子数组。如果只有一个grade_item,没有其他一个具有相同的student_course_id,则它仅返回一个值而不是总和。
我已经完成了此thread
但是它进一步弄乱了我头脑中的逻辑。我来这已经好几个星期了。
[当我添加每个grade_item的分数时,我想将该值放入另一个模型中,例如“ result_model”,看起来像:
result_item [
"id" => 1,
"student_course_id" => 11,
"score" => 15 //total of grade_items from all arrays where the student_course_id's were the same
];
帮助!
sum()
功能。您可以遍历该数组,并进行所需的任何检查,例如它是否不是Null等,然后依次进行pluck()和sum()。