# Inch CI

A belongs_to association.

## Create

A new struct of the associated model can be created with `struct/2`.

    defmodule Comment do
      use Ecto.Model

      schema "comments" do
        belongs_to :post, Post
      end
    end

    comment = %Comment{} 
    struct(comment.post, []) #=> %Post{}

## Reflection

Any association module will generate the `__assoc__` function that can be
used for runtime introspection of the association.

* `__assoc__(:loaded, assoc)` - Returns the loaded entities or `:not_loaded`;
* `__assoc__(:loaded, value, assoc)` - Sets the loaded entities;
* `__assoc__(:target, assoc)` - Returns the model where the association was
                                defined;
* `__assoc__(:name, assoc)` - Returns the name of the association field on the
                              model;
* `__assoc__(:new, name, target)` - Creates a new association with the given
                                    name and target;