如何解决参数缺失或值为空:消息
我使用 Sendgrid 在我的 rails 应用程序上构建了一个联系表单。填写联系表单时,显示此错误消息:
ActionController::ParameterMissing in MessagesController#create
参数缺失或值为空:消息
Started POST "/messages" for ::1 at 2020-12-30 16:41:11 +0100
Processing by MessagesController#create as HTML
Parameters: {"utf8"=>"✓","authenticity_token"=>"uCP2fAxAwk/i8678+LkKyg8LVDpRhrb8CY3sng1z+G7fDMsBzm07IGlG/5Kcqm/GZyzygu0+LKvvUKyVtNuEuA==","/messages"=>{"name"=>"Coline","email"=>"test@yopmail.com","phone_number"=>"0606060606","message"=>"jhsjhfjqshf"},"commit"=>"Envoyer"}
Completed 400 Bad Request in 4ms (ActiveRecord: 0.0ms)
谁能帮我找出原因?
我的消息模型:
class Message
include ActiveModel::Model
attr_accessor :name,:email,:phone_number,:body
validates :name,:body,presence: true
end
我的消息控制器:
class MessagesController < ApplicationController
def new
@message = Message.new
end
def create
@message = Message.new message_params
if @message.valid?
MessageMailer.contact(@message).deliver_Now
flash[:success] = "Votre message a bien été envoyé !"
redirect_to root_path
else
flash[:danger] = "Votre message n'a pas pu être envoyé."
redirect_to root_path
end
end
private
def message_params
params.require(:message).permit(:name,:body)
end
end
class MessageMailer < ApplicationMailer
def contact(message)
@body = message.body
mail(to: 'myemail@yopmail.com',subject: 'Nouveau message !')
end
end
我的邮件邮件视图(在 html.erb 和 text.erb 中):
<%= @body %>
我的联系表格:
<%= form_for messages_path,url: messages_path do |f| %>
<div class="row">
<div class="col-lg-4 col-md-4 col-sm-12">
<%= f.text_field :name,required: true,class: "form-control",placeholder: "Votre nom" %><br>
</div>
<div class="col-lg-4 col-md-4 col-sm-12">
<%= f.text_field :email,placeholder: "Votre email" %><br>
</div>
<div class="col-lg-4 col-md-4 col-sm-12">
<%= f.text_field :phone_number,placeholder: "Votre numéro de téléphone" %><br>
</div>
</div>
<%= f.text_area :message,rows: 8,cols: 40,placeholder: "Votre message"%><br>
<%= f.submit 'Envoyer',class: 'btn btn-secondary' %>
<% end %>
在我的 config/environment.rb 以及我的 config/environments/production.rb 和 config/environments/development.rb(SENDGRID_LOGIN 和 SENDGRID_PWD 都在我的 .env 文件中):
ActionMailer::Base.smtp_settings = {
:user_name => ENV['SENDGRID_LOGIN'],:password => ENV['SENDGRID_PWD'],:domain => 'mydomain.fr',:address => 'smtp.sendgrid.net',:port => 587,:authentication => :plain,:enable_starttls_auto => true
}
我已尝试删除控制器的 message_params 中的“require(:message)” --> 浏览器中没有错误消息,但我没有收到电子邮件,并且我的终端说我有未经许可的参数:>
Started POST "/messages" for ::1 at 2020-12-30 16:02:17 +0100
Processing by MessagesController#create as HTML
Parameters: {"utf8"=>"✓","authenticity_token"=>"x+dJYWSNThRzlmLBj9KrUD1ZEkzX1wa67jvOvwNh4vKgyHQcpqC3e/gjM6/rwc5cVX609GtvnO0I5o60usmeJA==","message"=>"jhwsdiufhsukjhdfkdbvf"},"commit"=>"Envoyer"}
Unpermitted parameters: :utf8,:authenticity_token,:/messages,:commit
Redirected to http://localhost:3000/
Completed 302 Found in 5ms (ActiveRecord: 0.0ms)
解决方法
错误来自 params.require(:message)
,因为您传入的 params
不包含 :message
键(它有 "/messages"
)。
这源于您的视图 - 您将 messages_path
(即 "/messages"
)代替字段名称/模型传递给 form_for
。试试:
form_for :message,url: messages_path do |f|
...
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