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tarioug MA
4,489 PointsWhy get("/:title") did store the title of the page in the symbol title ?
Hi everybody,
I'm really confused about this line :
get "/:title" do...
How is it possible for sinatra to recognize that the string put in the url has to be stored in :title ?
I hope my question is clear.
Thank's a lot
Tarioug
3 Answers
Jose Soto
23,407 Pointsget "/:title" do
params[:title]
end
The above code is another way of saying, "when you go to the url /something, the string something, will be available in the variable params[:title]. In the above case, it will simply display the string when you hit that route. It's similar to using GET request parameters like localhost/?title=something.
tarioug MA
4,489 PointsThank you for your response Jose.
But why I can't write this :
get "/title" do
params[title]
end
Jose Soto
23,407 PointsThat route will only be called when you visit the url localhost/title. For example, if you only have that route and you go to localhost/foobar, Sinatra will error out because you do not have a route for get "/foobar".
Adding the colon before title tells Sinatra that whatever the user enters for that route will be placed into a variable for use in your program.
Ahmed Mohamed Fouad
11,735 PointsI think because params is a hash and the ":title" is a symbol, so when returning "params[:title]" you're returning the params hash symbol value
tarioug MA
4,489 PointsOk it's clear. Thank you Jose