aboutsummaryrefslogtreecommitdiffstats
path: root/guides/source
diff options
context:
space:
mode:
Diffstat (limited to 'guides/source')
-rw-r--r--guides/source/active_support_core_extensions.md3
-rw-r--r--guides/source/routing.md2
2 files changed, 5 insertions, 0 deletions
diff --git a/guides/source/active_support_core_extensions.md b/guides/source/active_support_core_extensions.md
index f08a85770f..834c94e2ec 100644
--- a/guides/source/active_support_core_extensions.md
+++ b/guides/source/active_support_core_extensions.md
@@ -1631,6 +1631,9 @@ Given a string with a qualified constant name, `demodulize` returns the very con
"Product".demodulize # => "Product"
"Backoffice::UsersController".demodulize # => "UsersController"
"Admin::Hotel::ReservationUtils".demodulize # => "ReservationUtils"
+"::Inflections".demodulize # => "Inflections"
+"".demodulize # => ""
+
```
Active Record for example uses this method to compute the name of a counter cache column:
diff --git a/guides/source/routing.md b/guides/source/routing.md
index eef618f28d..921658a71e 100644
--- a/guides/source/routing.md
+++ b/guides/source/routing.md
@@ -694,6 +694,8 @@ namespace :admin do
end
```
+NOTE: Request constraints work by calling a method on the <a href="action_controller_overview.html#the-request-object">Request object</a> with the same name as the hash key and then compare the return value with the hash value. Therefore, constraint values should match the corresponding Request object method return type. For example: `constraints: { subdomain: 'api' }` will match an `api` subdomain as expected, however using a symbol `constraints: { subdomain: :api }` will not, because `request.subdomain` returns `'api'` as a String.
+
### Advanced Constraints
If you have a more advanced constraint, you can provide an object that responds to `matches?` that Rails should use. Let's say you wanted to route all users on a blacklist to the `BlacklistController`. You could do: