![]() I believe you need a new Participant table that has a many-to-one relationship with User, and a one-to-one relationship with Project. But you're also using it to represent the concept of a "Participant" of a project. So start by adding a many-to-many relation method to your Projects Model called roles, and run your query like this: app(Projects::class)->with('roles')->wherePivot('user_id', Auth::user()->getKey())->get()Īs for the structure, I think you have a little bit of a single-responsibility violation there. This can only be done if the Projects model is your entry point as opposed to your User. your desired datagram shows the project data to be top-level with nested 'roles'.). But what you're looking for is to go from the Project to the Role through that pivot table. And you can go from the User to the Role through your pivot table. So, you can go from the User to the Project through the pivot table. I'll get into some thoughts on that after actually answering your question though. There's a little awkwardness in your DB structure too, in that your pivot table is joining three tables instead of two. The problem is, the data from the pivot table isn't coming from a top-level Model class, so there isn't anything in the way of a relationship method for you to reference. You're essentially asking for an eager-load on a pivot table. Now I can easily get projects of authenticated user like that: $user = Auth::user() īut I would like to "inject" information about user role into response likat that: [ Return $this->belongsToMany('App\Library\Models\Project', 'project_user_role')->withPivot() My User, Project and Role models got defined belongsToMany relation like that: //User model example See image for screenshot from MySQL Workbench. Pivot table contains user_id, project_id and role_id columns. There is m:n relation between them so I have also pivot table called project_user_role. Now, let's imagine we want to retrieve ActivityFeed instances and eager load the parentable parent models for each ActivityFeed instance.In my Laravel app I have three database tables called users, projects and roles. Additionally, let's assume that Photo models "have many" Tag models and Post models "have many" Comment models. We will assume the ActivityFeed model defines a "morph to" relationship named parentable that allows us to retrieve the parent Photo or Post model for a given ActivityFeed instance. In this example, let's assume that Photo and Post models may create ActivityFeed models. If you would like to eager load a "morph to" relationship, as well as related model counts for the various entities that may be returned by that relationship, you may utilize the with method in combination with the morphTo relationship's morphWithCount method. We can summarize the relationship's table structure like so:Ĭounting Related Models On Morph To Relationships In order to provide support for roles being assigned to multiple users, the role_user table is needed. This would mean that a role could only belong to a single user. ![]() Remember, since a role can belong to many users, we cannot simply place a user_id column on the roles table. This table is used as an intermediate table linking the users and roles. The role_user table is derived from the alphabetical order of the related model names and contains user_id and role_id columns. ![]() To define this relationship, three database tables are needed: users, roles, and role_user. So, a user has many roles and a role has many users. For example, a user may be assigned the role of "Author" and "Editor" however, those roles may also be assigned to other users as well. An example of a many-to-many relationship is a user that has many roles and those roles are also shared by other users in the application. Many-to-many relations are slightly more complicated than hasOne and hasMany relationships. Return $this -> throughEnvironments () -> hasDeployments () Eloquent makes managing and working with these relationships easy, and supports a variety of common relationships: For example, a blog post may have many comments or an order could be related to the user who placed it. Counting Related Models On Morph To Relationshipsĭatabase tables are often related to one another.Defining Custom Intermediate Table Models.Ordering Queries Via Intermediate Table Columns. ![]()
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