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This article will talk about the difference between isDirty() and wasChanged() in Laravel data model. I hope it will be helpful to everyone!
Is there a difference between `isDirty()` and `wasChanged()` in the Laravel data model?
Answer: There is a difference.
Related code: github.com/laravel/framework/blob/...
The code of the isDirty function is as follows:
/**
* 判断模型或者任意指定模型属性是否被修改过
*
* @param array|string|null $attributes
* @return bool
*/public function isDirty($attributes = null){
return $this->hasChanges(
$this->getDirty(), is_array($attributes) ? $attributes : func_get_args()
);}
The code of getChanges() and getDirty() functions is as follows
/**
* 获取自从最后一次同步以来，被修改的属性值
*
* @return array
*/public function getDirty(){
$dirty = [];
foreach ($this->getAttributes() as $key => $value) {
if (! $this->originalIsEquivalent($key, $value)) {
$dirty[$key] = $value;
}
}
return $dirty;}/**
* 获取所有已经被修改的属性.
*
* @return array
*/public function getChanges(){
return $this->changes;}
In short.
The answer is quoted from: laracasts.com/discuss/channels/elo...
isDirty (and getDirty) is used for pre-save execution to see which properties have been modified between retrieval from the database and call, while wasChanged (and getChanges) is used for post-save execution to see Whether the property was modified or updated in the last save (from code to database).
Original address: https://stackoverflow.com/questions/58312036/incoherence-between-eloquent -isdirty-and-getchanges
Translation address: https://learnku.com/laravel/t/61576
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