# Trying to figure out what the relationship between my post topic and post like would be

**URL:** <https://forum.djangoproject.com/t/trying-to-figure-out-what-the-relationship-between-my-post-topic-and-post-like-would-be/34614>\
**Category:** Using the ORM\
**Created:** [September 8, 2024, 10:25pm UTC](https://forum.djangoproject.com/t/trying-to-figure-out-what-the-relationship-between-my-post-topic-and-post-like-would-be/34614 "2024-09-08T22:25:06Z")\
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<div class="post-metadata">

**Author:** ![warnersmith](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.djangoproject.com/warnersmith/32/23772_2.png) [@warnersmith](https://forum.djangoproject.com/u/warnersmith)\
**Post date:** [September 9, 2024, 11:00am UTC](https://forum.djangoproject.com/t/trying-to-figure-out-what-the-relationship-between-my-post-topic-and-post-like-would-be/34614/4 "2024-09-09T11:00:19Z")

</div>

The relationship between your models for post likes and users is already defined correctly using a `ManyToManyField` . Here’s a breakdown:

- **Model:** `PostLike`
- **Relationship with User:** This is a **Many-to-Many** relationship. One user can like many posts, and one post can be liked by many users. This is reflected by the `ManyToManyField` on the `user` field in the `PostLike` model.
- **Relationship with Post:** Similar to the user, this is also a **Many-to-Many** relationship. A `PostLike` instance connects a specific user to a specific post they liked. This is reflected by the `ForeignKey` on the `post` field in the `PostLike` model.

```auto
classDiagram
  User <-->|likes| PostLike
  PostLike -->|liked by| Post
end classDiagram

```

In this diagram:

- Rectangles represent classes (models) with their names inside.
- Lines represent relationships between classes.
- Crow’s feet (`<-->` ) represent a Many-to-Many relationship.
- An arrow (`->` ) represents a One-to-Many or ForeignKey relationship. Here, it shows a `PostLike` instance belongs to a single `User` and a single `Post` .
- Labels on the lines describe the relationship (“likes” and “liked by”).

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