我正在尝试学习包含 Ecto.Model 的 Phoenix 表单系统,但我遇到了一个无法通过的问题。我创建了一个表格:
<div class="jumbotron">
<%= form_for @changeset, user_path(@conn, :create), fn f -> %>
<label>
Login: <%= text_input f, :login %>
</label>
<label>
Password: <%= password_input f, :password %>
</label>
<label>
Name: <%= text_input f, :name %>
</label>
<label>
Surname: <%= text_input f, :name %>
</label>
<label>
Email: <%= email_input f, :name %>
</label>
<label>
Class: <%= text_input f, :name %>
</label>
<label>
Phone: <%= text_input f, :name %>
</label>
<%= submit "Submit" %>
<% end %>
</div>
这是由控制器提供的服务:
def index(conn, _params) do
changeset = User.changeset(%User{})
render conn, "index.html", changeset: changeset
end
def create(conn, _params) do
IO.inspect(_params)
render conn, "index.html"
end
和模型:
defmodule Kpsz.Model.User do
use Kpsz.Web, :model
schema "users" do
field :login, :string
field :password, :string
field :email, :string
field :role, :integer
field :name, :string
field :surname, :string
field :class, :string
field :phone_number, :string
has_many :presences, Kpsz.Model.Presence
end
@required_fields ~w(login,password,email,name,surname,class,phone_number)
@optional_fields ~w(role)
def changeset(user, params \\ :empty) do
case params do
:empty -> cast(user,params, ~w(),~w())
_ -> user
|> cast(params, @required_fields, @optional_fields)
|> validate_format(:email, ~r/@/)
|> unique_constraint(:email)
end
end
end
我已经对参数进行了模式匹配,因为我在创建空变更集以将其传递到表单时遇到了一堆错误。有更好的办法吗?
And error I am getting after submiting the form:
谁能指出我做错了什么并提供一些如何解决它的信息?