Follow-up to #39620.
This commit changes a few overlooked code fences to `bash`, and changes
a few IRB session snippets to be only Ruby code with a `ruby` fence.
In the past, we sometimes hit missing `Symbol#start_with?` and
`Symbol#end_with?`.
63256bc5d7a8e812964d
So I proposed `Symbol#start_with?` and `Symbol#end_with?` to allow duck
typing that methods for String and Symbol, then now it is available in
Ruby 2.7.
https://bugs.ruby-lang.org/issues/16348
Using `String#starts_with?` and `String#ends_with?` could not be gained
that conveniency, so it is preferable to not use these in the future.
Mark private constants
Display alternative for deprecation removal warning
Annotate Error's attributes
More emphasis on adding an error instead of message
Rewrite scaffold template using new errors API
Set first and last with behavior change deprecation
Update more doc and example
Add inspect for easier debugging
Using words such as 'just', 'simply' and 'easy' implies to the reader
that the tasks they are trying to accomplish are tasks that anyone can
do, which might then frustrate them if they find it difficult to
complete.
This commit rephrases some usage of these words to aid understanding in
the readers without making them feel belittled.
[ci skip]
Accessing the MySQL manual without a specific version number will redirect to the latest version of the manual.
Remove non functional id from a comment in favor an explicit message
I think that it is not clear what means that _an association is
present_. Add that it is checking that the foreign key is not empty and
that the referenced object exists to clarify it.
As `Lambdas` are a type of `Proc`, they can also be used in the
`if`/`unless` option of a validation to decide when the validation is
executed. Add this case to the guide for clarification.
Closes https://github.com/rails/rails/issues/33212
The Active Record validations guide's section on custom contexts appears
to be incomplete. the code sample shows a context being added to
validations, but not being used.
Add to the sample code for this section by showing validations being run
with and without the custom context. Add a second sample code block
showing that validations with no context are also run, when a context is
used.
As discussed in #33203 rails command already looks for, and runs,
bin/rails if it is present.
We were mixing recommendations within guides and USAGE guidelines,
in some files we recommended using rails, in others bin/rails and
in some cases we even had both options mixed together.
[ci skip] A regular expression was used to find a lot of missing Oxford
commas and add them. The regular expression was as follows.
", ([a-zA-Z0-9.\`:'\"]+ ){1,6}(or|and) "
This warning became obsolete when the regular expression was changed to
use `\z` instead of `\Z` in fce9c4e5e1ecb31cff2ca43a04fbe332816c3c45.
"-1234\n" =~ /\A[+-]?\d+\Z/ => 0
"-1234\n" =~ /\A[+-]?\d+\z/ => nil
[ci skip]
- Improve CHANGELOG entry for #18439.
- The documentation is updated as per changes in PR #18439 to the
`accept` option.
- The explanation about the virtual attribute is moved at the end so
that the arity of `accept` option is explained first.
- Added a note that `message` can also be passed to `validates_acceptance_of`.
It's pretty common for folks to monkey patch `ActiveRecord::Base` to
work around an issue or introduce extra functionality. Instead of
shoving even more stuff in `ActiveRecord::Base`, `ApplicationRecord` can
hold all those custom work the apps may need.
Now, we don't wanna encourage all of the application models to inherit
from `ActiveRecord::Base`, but we can encourage all the models that do,
to inherit from `ApplicationRecord`.
Newly generated applications have `app/models/application_record.rb`
present by default. The model generators are smart enough to recognize
that newly generated models have to inherit from `ApplicationRecord`,
but only if it's present.
