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phalcon:model 事件与事件管理器
事件与事件管理器（Events and Events Manager）¶
Models allow you to implement events that will be thrown when performing an insert/update/delete. They help define business rules for a certain model. The following are the events supported by Phalcon\Mvc\Model and their order of execution:
| Operation | Name | Can stop operation? | Explanation |
|---|---|---|---|
| Inserting/Updating | beforeValidation | YES | Is executed before the fields are validated for not nulls/empty strings or foreign keys |
| Inserting | beforeValidationOnCreate | YES | Is executed before the fields are validated for not nulls/empty strings or foreign keys when an insertion operation is being made |
| Updating | beforeValidationOnUpdate | YES | Is executed before the fields are validated for not nulls/empty strings or foreign keys when an updating operation is being made |
| Inserting/Updating | onValidationFails | YES (already stopped) | Is executed after an integrity validator fails |
| Inserting | afterValidationOnCreate | YES | Is executed after the fields are validated for not nulls/empty strings or foreign keys when an insertion operation is being made |
| Updating | afterValidationOnUpdate | YES | Is executed after the fields are validated for not nulls/empty strings or foreign keys when an updating operation is being made |
| Inserting/Updating | afterValidation | YES | Is executed after the fields are validated for not nulls/empty strings or foreign keys |
| Inserting/Updating | beforeSave | YES | Runs before the required operation over the database system |
| Updating | beforeUpdate | YES | Runs before the required operation over the database system only when an updating operation is being made |
| Inserting | beforeCreate | YES | Runs before the required operation over the database system only when an inserting operation is being made |
| Updating | afterUpdate | NO | Runs after the required operation over the database system only when an updating operation is being made |
| Inserting | afterCreate | NO | Runs after the required operation over the database system only when an inserting operation is being made |
| Inserting/Updating | afterSave | NO | Runs after the required operation over the database system |
phalcon:model 事件与事件管理器
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