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@@ -1,6 +1,27 @@
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# Migration from 2.x to 3.x: Shims
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+Shims ease migration as complete parts of the code, such as validation and other model property settings
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+can be reused immediatelly without refactoring them right away.
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-## Session
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+Note: It does not hurt to have them, if you don't use them. The overhead is minimal.
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+
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+## Model
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+The following can be used in 3.x via shim support:
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+
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+### Table
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+- $order property
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+- $validate property
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+- relations (hasX, belongsTo)
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+- $displayField
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+- $primaryKey
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+- Timestamp behavior added by default (if modified or created exists)
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+
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+### Entity
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+- Enums via enum() are ported in entity, if you used them before.
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+
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+
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+## Component
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+
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+### Session
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The session component of the core is deprecated and will throw a warning as it will soon be removed.
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Better use the plugin one right away. It is a 1:1 clone of it.
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```php
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@@ -15,14 +36,3 @@ class AppController extends Controller {
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}
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```
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It also contains the new consume() method.
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-
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-## Model
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-The following can be used in 3.x via shim support:
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-
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-### Used to be on models => now on tables
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-- $order property
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-- $validate property
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-- relations (hasX, belongsTo)
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-- $displayField
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-- $primaryKey
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-- Timestamp behavior added by default (if modified or created exists)
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