How to display results from two tables using JOIN in codeigniter?

Question

So I have 3 tables that are going to be used for this problem.

Table Name: users

columns: USER_ID(INT & PRIMARY KEY), USER_EMAIL(VARCHAR)

Table Name: teams

columns: TEAM_ID(INT & PRIMARY KEY), TEAM_NAME(VARCHAR)

Table Name: user_teams

columns: USER_TEAM_ID(INT & PRIMARY KEY), USER_ID(INT & FOREIGN KEY from users ), TEAM_ID(INT & FOREIGN KEY from teams )

I am trying to display everyone's email or USER_EMAIL that is on a team.

For example:

Team 1

user with the USER_IDs 6 and 8 are on the team

TEAM_ID: 1

I want to echo the user's emails associated with those USER_IDs on Team 1.

I feel that I would have to use a JOIN to make this happen but am unsure of how to go about doing it with codeigniter.

Any help is appreciated, thank you.

Answer 1

This is actually pretty straight forward. In your model,

$this->db->select('users.USER_EMAIL')
->from('users')
->join('user_teams', 'users.USER_ID = user_teams.USER_ID')
->join('teams', 'teams.TEAM_ID = user_teams.TEAM_ID')
->where('teams.TEAM_ID', $teamID); //In your case 1 here
$query = $this->db->get();
return $query->result_array();