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What if you've added a view, and it's not being found?
What if you've added a view and
it's not being found.
0:00
When we visit the Edit form for a pet and
update a pet to have a blank name
0:03
we should be redirected back to
the form to fix the name but
0:09
instead we get a Template
is missing error.
0:12
If we look in
the app/views/pets directory.
0:15
We'll see an edit.html.erb.
0:23
So what's the problem?
0:26
Well let's look at the error
in the browser again.
0:27
It says Missing template pets/edits.
0:30
Note the s on the end.
0:33
There's just one method
in the stack trace,
0:35
the update method on
pets_controller line 38.
0:37
So let's open
app/controllers/pets_controller and
0:42
go to line 38.
0:46
And there we see the code render :edits
where the view name, edits, is plural.
0:46
Let's look at the components of the error
message to determine what template
0:52
filename Rails is looking for.
0:56
We can see that it's looking
in the app/views folder.
0:58
And because our call to render
is in the pets controller
1:01
it's looking in the pets sub folder.
1:04
But because we're calling render edits,
plural, it's looking for
1:06
a template named edits.html.erb.
1:10
Our actual template file
is named edit.html.erb.
1:14
So let's change our controller code
from render :edits to render :edit,
1:19
save, and reload the page.
1:24
If we're asked to confirm
the form resubmission, we can.
1:27
We should get redirected back to
the Edit page to fix the pet name and
1:30
the template loads.
1:34
If we go look at the rails log,
we see that it rendered pets/edit.html.erb
1:35
instead of pets/edits.html.erb,
the plural.
1:40
Fixing our code allowed it to
load the views template file.
1:45
Now, you have some general tips on how to
troubleshoot problems with your views.
1:48
Next, we'll look at how to fix issues
you can encounter while loading
1:53
model data from your database.
1:56
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