Yii database Add, modify, delete related Operations summary _php tutorial

Yii database Add, modify, delete related Operations summary

In this paper, we summarize the data in Yii, modify the data, delete the relevant operation of data, just learned a few days, only recorded some, later slowly enrich, there is a need for friends to see.

Ways to add data

(1) Save method (Object form operation)

$user =new User;
$user->username= ' phpernote ';
$user->password= ' 123456 ';
if ($user->save () >0) {
Echo ' Add success ';
}else{
Echo ' Add failed ';
}

(2) Insert method (array-type operation)

Yii::app ()->dbname->createcommand ()->insert (' Tbl_user ',
Array
' Username ' = ' phpernote ',
' Password ' = ' 123456 '
)
);

(3) Insert method (object form operation)

$user =new User ();
$user->username= ' phpernote ';
$user->password= ' 123456 ';
if ($user->insert ()) {
Echo ' Add success ';
}else{
Echo ' Add failed ';
}

Ways to modify data

(1) Post::model ()->updateall ($attributes, $condition, $params);

$count =user::model ()->updateall (Array (' username ' = ' phpernote ', ' password ' = ' 123456 '), ' Id=:id ', Array (': ID ' = $id));
if ($count >0) {
Echo ' modification succeeded ';
}else{
Echo ' modification failed ';
}

(2) Post::model ()->updatebypk ($PK, $attributes, $condition, $params);

$count =user::model ()->updatebypk (1,array (' username ' = ' admin ', ' password ' = ' 123456 '));

Or

$count =user::model ()->updatebypk (array), Array (' username ' = ' admin ', ' password ' = ' 123456 '), ' username =:name ', Array (': Name ' = ' admin '));
if ($count >0) {
Echo ' modification succeeded ';
}else{
Echo ' modification failed ';
}
$PK represents a primary key, which can be either a collection, $attributes represents a collection of fields to modify, $condition represents a condition, $params an incoming value

(3) Post::model ()->updatecounters ($counters, $condition, $params);

$count =user::model ()->updatecounters (Array (' status ' =>1), ' Username=:name ', Array (': Name ' = ' admin '));
if ($count >0) {
Echo ' modification succeeded ';
}else{
Echo ' modification failed ';
}
The array (' status ' =>1) represents the admin table in the database based on the condition username= ' admin ', and all the results that are queried automatically add 1 to the Status field.

User::model ()->updatecounters (Array (' Count ' =>1), ' id= '. User::model ()->id);//Auto Overlay 1

User::model ()->updatecounters (Array (' Count ' =>-1), ' id= '. User::model ()->id);//auto-decrement 1

(4) Yii::app ()->dbname->createcommand ()->update ($attributes, $condition, $params);

Yii::app ()->dbname->createcommand ()->update (' Tbl_user ',
Array
' Username ' = ' phpernote '
),
' Id=:id ',
Array
': Id ' =>3
)
);

Ways to delete data

(1) Post::model ()->deleteall ($condition, $params);

For example:

$count =user::model ()->deleteall (' Username=:name and password=:p ", Array (': Name ' = ' phpernote ', ':p ' > ' 123456 '));

Or:

$count =user::model ()->deleteall (' ID in (") '); Delete data with ID for these
if ($count >0) {
Echo ' Delete succeeded ';
}else{
Echo ' delete failed ';
}

(2) Post::model ()->deletebypk ($PK, $condition, $params);

For example:

$count =user::model ()->deletebypk (1);

Or:

$count =user::model ()->deletebypk (array), ' Username=:name ', Array (': Name ' = ' admin '));
if ($count >0) {
Echo ' Delete succeeded ';
}else{
Echo ' delete failed ';
}

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