| Commit message (Collapse) | Author | Age | Files | Lines |
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Closes #13650, #13672
This is an alternate implementation to solve #13650. Currently form fields
contain the enum value (eg. "1"). This breaks because the setter `enum=`
expects the label (eg. "active").
ActiveRecord::Enum allows you to use labels in your application but store numbers.
We should make sure that all parts after AR are dealing with labels and not the
underlying mapping to a number.
This patch defines `_before_type_cast` on every enum column to return the label.
This method is later used to fetch the value to display in form fields.
I deliberately copied the implementation of the enum getter instead of delegating to it.
This allows you to overwrite the getter and for example return a `Value Object` but have it
still work for form fields.
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Previously, this would give an `ArgumentError`:
class Issue < ActiveRecord::Base
enum :status, [:open, :finished]
end
Issue.open.build # => ArgumentError: '0' is not a valid status
Issue.open.create # => ArgumentError: '0' is not a valid status
PR #13542 muted the error, but the issue remains. This commit fixes
the issue by allowing the enum value to be written directly via the
setter:
Issue.new.status = 0 # This now sets status to :open
Assigning a value directly via the setter like this is not part of the
documented public API, so users should not rely on this behavior.
Closes #13530.
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Add a mention about the automatic generation of scopes based on the
allowed values of the field on the enum documentation.
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Previously, the writer methods would simply check whether the passed
argument was the symbol representing the integer value of an enum field.
Therefore, it was not possible to specify the numeric value itself but
the dynamically defined scopes generate where clauses relying on this
kind of values so a chained call to a method like `find_or_initialize_by`
would trigger an `ArgumentError`.
Reference #13530
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This allows to assign both `String` and `Symbol` values to the enum
without having to call `to_sym`, which is a security problem.
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Commit 6e4a810f51b9ed2468b92247ef5568cc9d6dbcc0 changed the implementation
from class_eval to define_method, but missed the access to the constant
versus the access to the constant name.
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https://github.com/rails/rails/commit/db41eb8a6ea88b854bf5cd11070ea4245e1639c5#commitcomment-4502683
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map to integers in the database, but can be queried by name
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