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Ruby Rails Routes and Resources Routes to Create Actions Controller Action to Create Pages

Joey Zheng
Joey Zheng
19,319 Points
Posted by Joey Zheng
Joey Zheng
19,319 Points

Why can't I use redirect_to method to redirect to an object?

I use this code in my pages controller:

def create
    params_page = params.require(:page).permit(:title, :body, :slug)
    @page = Page.new(params_page)
    @page.save
    redirect_to @page
end

However when I clicked submit button, it said:

NoMethodError in PagesController#create 
undefined method `page_url' for #<PagesController:0x9c9d0b0>
Extracted source (around line #18): 
16  @page = Page.new(params_page)
17  @page.save
18  redirect_to @page
19  end
20
21  end

What is the problem? Thanks.

1 Answer

Jay McGavren
STAFF
Jay McGavren
Treehouse Teacher
Jay McGavren
Jay McGavren
Treehouse Teacher

redirect_to @page requires that a page_url method be defined that takes a Page object as an argument.

There are a couple different ways to define that method. One is to ensure your routes.rb file has a line like this:

get    '/pages/:id',      to: 'pages#show', as: 'page'

The as: 'page' part is what names the route and generates the page_url method.