Codeigniter - Getting Value from a Secondary Table - php

Question

I have 3 tables in my DB: ‘workouts’, ‘exercises’ and ‘exercise_list’.
workouts: | id | datetime | misc1 | misc2 |
exercises: | id | ex_id | wo_id | weight | reps | wo_order |
exercise_list: | id | title |
So far I have generated a view which grabs details of a specific workout (myurl.com/workouts/view/<datetime>)
I have built a query that grabs the fields from ‘workouts’ and also it grabs any ‘exercises’ entries that correspond to that workout (by get_where using wo_id).
I build a view which lists the exercises for that workout, but I can only get as far as foreach’ing out the ‘id’ of the exercise. I need to somehow have a further query that grabs the ‘title’ of each exercise that is associated with that workout ‘id’.
So I currently have a table (html):
| Exercise | Weight | Reps |
| 1 | 50 | 8 | ...
I need ‘1’ to become the title of the exercise in ‘exercise_list’ with an ‘id’ of ‘1’.
My solution
May not be perfect but it works:
public function get_exercises($wo_id)
{
$this->db->select('exercises.wo_id,
exercises.weight,
exercises.reps,
exercise_list.title');
$this->db->from('exercises');
$this->db->join('exercise_list','exercises.ex_id= exercise_list.id');
$this->db->where('exercises.wo_id',$wo_id);
$q = $this->db->get();
$query = $q->result_array();
return $query;
}
Not sure about the bestway to do the last few lines. This is in my model, so I needed to return the array. I am going tobet there is a way to do it better than the last 3 lines.

Answer 1

You can use joins and select title from your exercise_list table
$this->db->select('w.*,el.title')
->from('workouts w')
->join('exercises e','w.id = e.wo_id')
->join('exercise_list el','el.id = e.ex_id')
->where('e.wo_id',$yourid)
->get()
->result();