Question

当我转到用户个人资料页面时，如何让它自动提取当前用户名。就像我点击“给我发消息”按钮而不是拉动网站上的所有用户，我想让它自动拉动我正在看的用户。

现在当我按下“给我发消息”按钮时，它会拉起所有用户，我必须选择发送消息的用户。我能做什么？我可以使用<%= user.name %>来提升用户，但这对我没有帮助。

<button type="button" class="btn btn-info" data-toggle="modal" data-target="#exampleModal" data-whatever="<%= @user.name%>">Message Me</button>

<%= f.collection_select (:recipients, User.all.collect {|p| [ p.name, p.id ] }, {}, { multiple: true , class: "chosen-select form-control" })%>

完整代码：

<div class="modal fade" id="exampleModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
  <div class="modal-dialog">
      <%= form_for :conversation, url: :conversations, html: { class: "" } do |f| %>

    <div class="panel2-signup">
        <div class="panel-body-signup">

      <div class="modal-body">
        <form>

    <div class="form-group">
        To <%= f.collection_select (:recipients, User.all.collect {|p| [ p.name, p.id ] }, {}, { multiple: true , class: "chosen-select form-control" })%>

      Subject:
        <%= f.text_field :subject, class: "form-control" %>

      Message:
      <%= f.text_area :body, class: 'form-control', placeholder: "Type your message here", rows: 4  %>
    </div>

</div>

这是db info

    class CreateMailboxer < ActiveRecord::Migration
  def self.up    
  #Tables
    #Conversations
    create_table :mailboxer_conversations do |t|
      t.column :subject, :string, :default => ""
      t.column :created_at, :datetime, :null => false
      t.column :updated_at, :datetime, :null => false
    end    
    #Receipts
    create_table :mailboxer_receipts do |t|
      t.references :receiver, :polymorphic => true
      t.column :notification_id, :integer, :null => false
      t.column :is_read, :boolean, :default => false
      t.column :trashed, :boolean, :default => false
      t.column :deleted, :boolean, :default => false
      t.column :mailbox_type, :string, :limit => 25
      t.column :created_at, :datetime, :null => false
      t.column :updated_at, :datetime, :null => false
    end    
    #Notifications and Messages
    create_table :mailboxer_notifications do |t|
      t.column :type, :string
      t.column :body, :text
      t.column :subject, :string, :default => ""
      t.references :sender, :polymorphic => true
      t.column :conversation_id, :integer
      t.column :draft, :boolean, :default => false
      t.string :notification_code, :default => nil
      t.references :notified_object, :polymorphic => true
      t.column :attachment, :string
      t.column :updated_at, :datetime, :null => false
      t.column :created_at, :datetime, :null => false
      t.boolean :global, default: false
      t.datetime :expires
    end    


  #Indexes
    #Conversations
    #Receipts
    add_index "mailboxer_receipts","notification_id"

    #Messages  
    add_index "mailboxer_notifications","conversation_id"

  #Foreign keys    
    #Conversations
    #Receipts
    add_foreign_key "mailboxer_receipts", "mailboxer_notifications", :name => "receipts_on_notification_id", :column => "notification_id"
    #Messages  
    add_foreign_key "mailboxer_notifications", "mailboxer_conversations", :name => "notifications_on_conversation_id", :column => "conversation_id"
  end

  def self.down
  #Tables   
    remove_foreign_key "mailboxer_receipts", :name => "receipts_on_notification_id"
    remove_foreign_key "mailboxer_notifications", :name => "notifications_on_conversation_id"

  #Indexes
    drop_table :mailboxer_receipts
    drop_table :mailboxer_conversations
    drop_table :mailboxer_notifications
  end
end

ConversationsController.rb

class ConversationsController < ApplicationController
  before_action :authenticate_user!
  before_action :get_mailbox

  def new
  end

    def index
    end

  def create
    recipients = User.where(id: conversation_params[:recipients]) 
        if 
            conversation = current_user.send_message(recipients, conversation_params[:body], conversation_params[:subject]).conversation
            flash[:notice] = "Your message was successfully sent!"
            redirect_to conversation_path(conversation)
        else
            flash[:alert] = "Error. Message was not created"
            redirect_to new_conversation_path
        end


  end


  def show
    @receipts = conversation.receipts_for(current_user).order("created_at ASC")
    # mark conversation as read
    conversation.mark_as_read(current_user)

  end


  def reply
    current_user.reply_to_conversation(conversation, message_params[:body])
    flash[:notice] = "Your reply message was successfully sent!"
    redirect_to conversation_path(conversation)

  end

  def trash
    conversation.move_to_trash(current_user)
    redirect_to mailbox_inbox_path
  end

  def untrash
    conversation.untrash(current_user)
    redirect_to mailbox_inbox_path
  end

        def delete
        @mailbox.trash.each do |conversation|
        conversation.receipts_for(current_user).update_all(deleted: true)
    end
    flash[:notice] = 'Your trash was cleaned!'
        redirect_to mailbox_inbox_path
    end


  private

  def conversation_params
    params.require(:conversation).permit(:subject, :body,recipients:[])
  end

      def get_mailbox
    @mailbox ||= current_user.mailbox
                 if  @user = current_user
            @post = current_user.posts.build
        else
        end
                  if  @user = current_user
            @post = current_user.posts.build
            @purchased = Sale.where(buyer_email: current_user.email).order("created_at DESC").order("created_at DESC").paginate(page:params[:page], per_page: 1 )
      @sales = Sale.where(seller_email: current_user.email).order("created_at DESC").order("created_at DESC").paginate(page:params[:page], per_page: 1 )
        else
        end
  end

  def message_params
    params.require(:message).permit(:body, :subject)
  end
end

Answer 1

查看您的操作过滤器，看起来您正在使用devise gem进行用户管理。

要在设计中获取当前经过身份验证的用户，您可以使用辅助方法current_user。

Rails：如何选择当前用户而不是所有用户？

1 个答案: