105 lines
1.8 KiB
Elixir
105 lines
1.8 KiB
Elixir
defmodule Bcit.Schools do
|
|
@moduledoc """
|
|
The Schools context.
|
|
"""
|
|
|
|
import Ecto.Query, warn: false
|
|
alias Bcit.Repo
|
|
|
|
alias Bcit.Schools.Student
|
|
|
|
@doc """
|
|
Returns the list of students.
|
|
|
|
## Examples
|
|
|
|
iex> list_students()
|
|
[%Student{}, ...]
|
|
|
|
"""
|
|
def list_students do
|
|
Repo.all(Student)
|
|
end
|
|
|
|
@doc """
|
|
Gets a single student.
|
|
|
|
Raises `Ecto.NoResultsError` if the Student does not exist.
|
|
|
|
## Examples
|
|
|
|
iex> get_student!(123)
|
|
%Student{}
|
|
|
|
iex> get_student!(456)
|
|
** (Ecto.NoResultsError)
|
|
|
|
"""
|
|
def get_student!(id), do: Repo.get!(Student, id)
|
|
|
|
@doc """
|
|
Creates a student.
|
|
|
|
## Examples
|
|
|
|
iex> create_student(%{field: value})
|
|
{:ok, %Student{}}
|
|
|
|
iex> create_student(%{field: bad_value})
|
|
{:error, %Ecto.Changeset{}}
|
|
|
|
"""
|
|
def create_student(attrs) do
|
|
%Student{}
|
|
|> Student.changeset(attrs)
|
|
|> Repo.insert()
|
|
end
|
|
|
|
@doc """
|
|
Updates a student.
|
|
|
|
## Examples
|
|
|
|
iex> update_student(student, %{field: new_value})
|
|
{:ok, %Student{}}
|
|
|
|
iex> update_student(student, %{field: bad_value})
|
|
{:error, %Ecto.Changeset{}}
|
|
|
|
"""
|
|
def update_student(%Student{} = student, attrs) do
|
|
student
|
|
|> Student.changeset(attrs)
|
|
|> Repo.update()
|
|
end
|
|
|
|
@doc """
|
|
Deletes a student.
|
|
|
|
## Examples
|
|
|
|
iex> delete_student(student)
|
|
{:ok, %Student{}}
|
|
|
|
iex> delete_student(student)
|
|
{:error, %Ecto.Changeset{}}
|
|
|
|
"""
|
|
def delete_student(%Student{} = student) do
|
|
Repo.delete(student)
|
|
end
|
|
|
|
@doc """
|
|
Returns an `%Ecto.Changeset{}` for tracking student changes.
|
|
|
|
## Examples
|
|
|
|
iex> change_student(student)
|
|
%Ecto.Changeset{data: %Student{}}
|
|
|
|
"""
|
|
def change_student(%Student{} = student, attrs \\ %{}) do
|
|
Student.changeset(student, attrs)
|
|
end
|
|
end
|