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Add ".[key]" to the abstract namespaces [ci skip] #50860

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Jan 29, 2024
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Add ".[key]" to the abstract namespaces [ci skip] #50860

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Add ".[key]" to the abstract namespaces [ci skip]
yykamei Jan 24, 2024
6f56e37
Move abstract key list after :blank examples
yykamei Jan 28, 2024
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23 changes: 12 additions & 11 deletions guides/source/i18n.md
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Original file line number Diff line number Diff line change
Expand Up @@ -915,17 +915,7 @@ class User < ApplicationRecord
end
```

The key for the error message in this case is `:blank`. Active Record will look up this key in the namespaces:

```
activerecord.errors.models.[model_name].attributes.[attribute_name]
activerecord.errors.models.[model_name]
activerecord.errors.messages
errors.attributes.[attribute_name]
errors.messages
```

Thus, in our example it will try the following keys in this order and return the first result:
The key for the error message in this case is `:blank`. Thus, in our example it will try the following keys in this order and return the first result:

```
activerecord.errors.models.user.attributes.name.blank
Expand All @@ -935,6 +925,17 @@ errors.attributes.name.blank
errors.messages.blank
```

To explain it more abstractly, it returns the first key that matches in the order of the following list.

```
activerecord.errors.models.[model_name].attributes.[attribute_name].[key]
activerecord.errors.models.[model_name].[key]
activerecord.errors.messages.[key]
errors.attributes.[attribute_name].[key]
errors.messages.[key]
```


When your models are additionally using inheritance then the messages are looked up in the inheritance chain.

For example, you might have an Admin model inheriting from User:
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