对 Eloquent 的 SQL 查询

Question

to implement a basic relationship system I followed this model suggested from a website:

user_relationship:
------------------
- user_1
- user_2
- status
- user_action

Where user_1 , user_2 , user_action are foreign keys that references users.id and user_1 < user_2 to avoid duplicate tuples.

However I'm finding it difficult to write this SQL query in Eloquent (Laravel 5.5):

SELECT user_1, user_2
FROM user_relationships
WHERE (user_1 = :user OR user_2 = :user) AND status = 'friends'

This query should return all the tuples where user is either user_1 or user_2 .

I have a very basic knowledge of Eloquent so I'm having a hard time making this work, but since I've seen many people saying that it's better to use Eloquent whenever possible I'd like to use it.

Answer 1

You do in wrong way. Better solution is to use relations in model. You can make relations such as:

• One To One
• One To Many
• Many To Many
• Has Many Through
• Polymorphic Relations
• Many To Many Polymorphic Relations

This will save your time, read it: https://laravel.com/docs/5.5/eloquent-relationships