批量更新*職位的所有*意見，但拒絕取消

Question

Post has_many :comments 
Comment belongs_to :post 

我想批量更新（批准）不在cancelled帖子的所有意見。如果選擇了取消的評論，則顯示通知，否則批准評論。

def make_comments_approved 
    comment_ids = params[:comment_ids] 

    if comment_ids 
     posts = Post.includes(:comments). 
     where(comments: { id: comment_ids.keys }) 

     comments = posts.comments 

     cancelled_comments = posts. 
     where(comments: { status: :cancelled }).comments 

     comments_to_update = comments - cancelled_comments 

     if cancelled_comments.any? 
     flash[:error] = "Cannot approve cancelled comments: #{cancelled_comments.pluck(:number)}" 
     else 
     approve_comments(comments_to_update) 
     flash[:notice] = 
      "#{pluralize(comments.count, 'comment')} successfully approved" 
     end 
    else 
     flash[:error] = 'Select comments to update' 
    end 
    redirect_to :back 
    end 

private 

    def approve_comments(comments) 
    # approve here 
    end 

Answer 1

使用update_all進行批量更新。例如：

comments.update_all(approved: true) 

但是，要小心，因爲它不會觸發驗證或回調。

Answer 2

如果你有comment_ids與你，如果你使用的是search-logic寶石做以下

cancelled_comment = Comment.where(id: comment_ids.keys, status: :cancelled) 
if cancelled_comment.count > 0 
    flash[:error] = "Cannot approve cancelled comments: #{cancelled_comments.pluck(:number)}" 
else 
    comments = Comment.where(id: comment_ids.keys).update_all() 
    flash[:notice] = "#{pluralize(comments.count, 'comment')} successfully approved" 
end 

Answer 3

，你可以做以下的（語法是軌道2）

Comment.status_ne("cancelled").update_all(:approved => true)