laurenfackler
To quickly test changes to email template copy and styling, I created a couple routes that are only accessible in the dev environment:
if Mix.env() == :dev do
get("/email_previews", EmailPreviewController, :index)
get("/email_previews/:email", EmailPreviewController, :show)
end
However, this now means that there is a template file that references a path helper function that doesn’t exist in other environments:
<ul>
<%= for email <- @emails do %>
<li><a href="<%= email_preview_path(@conn, :show, to_string(email)) %>"><%= email %></a></li>
<% end %>
</ul>
which prevents the app from compiling:
** (CompileError) lib/my_app_web/templates/email_preview/index.html.eex:9: undefined function email_preview_path/3
How can I get the app to compile?
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andrejsm
Simply don’t use the compiled path functions. Instead type them as strings and interpolate values.
Also Liked
mudasobwa
When one needs different modules to be compiled in different environments, it’d be better to explicitly define these module sets, instead of polluting the source code with conditionals.
For the modules to be available in
:testonly, the common approach is to createtest/supportfolder, and modify yourmix.exsin the following way:Mix.Project.project/0callback to include the following key/value pair:testenvironment there.That way all of them will be compiled in
testand discarded in all other environments.If you need some modules to exist in
:prodonly, declare compile paths appropriately.benwilson512
Right, the
if Mix.env == :dev docall in the router happens at compile time because it’s in the module body.benwilson512
You don’t want to do
Mix.envcalls at runtime. Does theemail_preview_pathexist in a view that only is needed in dev?Last Post!
laurenfackler
Right, yes. I am already using that feature of Swoosh. However, I wanted a slightly different solution where I could quickly preview any email without having to manually go through the user flows within my application (e.g. filling out forms). Unless, I’m completely missing something in the README…
What I created, allows me to visit http://localhost:4000/email_previews and see a list of links to preview all my apps emails:
I also created a gist for anyone else who might stumble across this thread and want the same: