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Do not render views when mail() isn't called. (NullMail refactoring)

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1 parent 2e44dda commit b786f065d3fc6b0869f7f485042e8667e71ff66d @senny senny committed
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5 actionmailer/CHANGELOG.md
@@ -1,5 +1,10 @@
## Rails 4.0.0 (unreleased) ##
+* Do not render views when mail() isn't called.
+ Fix #7761
+
+ *Yves Senn*
+
* Support `Mailer.deliver_foo(*args)` as a synonym for
`Mailer.foo(*args).deliver`. This makes it easy to write e.g.
`Mailer.expects(:deliver_foo)` when testing code that calls
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14 actionmailer/lib/action_mailer/base.rb
@@ -510,7 +510,19 @@ def initialize(method_name=nil, *args)
def process(*args) #:nodoc:
lookup_context.skip_default_locale!
- super
+
+ generated_mail = super
+ unless generated_mail
+ @_message = NullMail.new
+ end
+ end
+
+ class NullMail #:nodoc:
+ def body; '' end
+
+ def method_missing(*args)
+ nil
+ end
end
def mailer_name
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6 actionmailer/test/base_test.rb
@@ -499,6 +499,12 @@ def teardown
end
end
+ test 'the view is not rendered when mail was never called' do
+ mail = BaseMailer.without_mail_call
+ assert_equal('', mail.body.to_s.strip)
+ mail.deliver
+ end
+
# Before and After hooks
class MyObserver
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1 actionmailer/test/fixtures/base_mailer/without_mail_call.erb
@@ -0,0 +1 @@
+<% raise 'the template should not be rendered' %>
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3 actionmailer/test/mailers/base_mailer.rb
@@ -115,4 +115,7 @@ def different_layout(layout_name='')
def email_with_translations
mail body: render("email_with_translations", formats: [:html])
end
+
+ def without_mail_call
+ end
end

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