Rails%203%20In%20Action

First steps
Combining redirect_to and flash
You can combine flash and redirect_to by passing the flash as an option to the
redirect_to. If you want to pass a success message, you use the notice flash key;
otherwise you use the alert key. By using either of these two keys, you can use this
syntax:
redirect_to @project,
:notice => "Project has been created."
# or
redirect_to @project,
:alert => "Project has not been created."
If you do not wish to use either notice or alert, you must specify flash as a hash:
redirect_to @project,
:flash => { :success => "Project has been created."}
The show action is responsible for displaying a single record’s information. To retrieve
a record, you need an ID to fetch. You know the URL for this page is going to be something
like /projects/1, but how do you get the 1 from that URL? Well, when you use
resource routing, as you have done, this 1 is available as params[:id], just as
params[:controller] and params[:action] are also automatically made available by
Rails. You can then use this params[:id] parameter in your show action to find a specific
Project object.
Put the code from the following listing into app/controllers/projects_controller.rb
to do this right now.
Listing 3.18 app/controllers/projects_controller.rb
def show
@project = Project.find(params[:id])
end
You pass the params[:id] object to Project.find here, which gives you a single
Project object that relates to a record in the database, which has its id field set to
whatever params[:id] is. If Active Record cannot find a record matching that ID, it
raises an ActiveRecord::RecordNotFound exception.
When you run rake cucumber:ok, you get an error telling you the show action’s
template is missing:
And I press "Create Project"
Missing template projects/show, application/show
with { :handlers=>[:erb, :builder],
:formats=>[:html],
:locale=>[:en, :en]}.
Searched in:
* "/Users/ryanbigg/Sites/book/edge-ticketee/app/views"
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