如何在Rails中查询数组列？ 在哪里条件？

Question

i am having the following columns in my table t.string :appr_status , type: Array, default: [] and t.integer :employee_id and my current query is

     @reg_req = AttendanceChangeRequest.where("employee_id IN (?)", emp_id_arr).to_a

where emp_id_arr is an array like [1,2,3] . and i want to change the above query to this.

    AttendanceChangeRequest.where('(employee_id IN = ? AND appr_status contain= ?) ', emp_id_arr , appr_array )

where appr_array = ["1_app","2_app", "3_appr","4_appr"] is this. i want to get all the records when any one of the employee id is present in the passing array that is emp_id_arr and appr_status column should contain all values which are present in the passing array to the query (that is in appr_array ) if one value is also not present then i dont want that record. how to write this query?

Answer 1

u need to like

AttendanceChangeRequest.where("'1_app' = ANY (appr_status)")

This will work correctly.

Answer 2

Try this:

AttendanceChangeRequest.where(employee_id: emp_id_arr,appr_status: appr_array)

This is what you are looking?

Answer 3

AttendanceChangeRequest.where("array_to_string(appr_status, '||') ILIKE :name", name: "%your desire search able value here%")

This is what you are looking? what this query ll do.

• this ll find the record from table where colum of appr_status having datatype array contain your desire given value. For example appr_status col has array [1,2,3,4] user want to fatch record from appr_status col where each array of appr_status contain integer 3 here 3 will be your desire given value you can put it via variable or hardcot