如何在cakephp 3.0中在同一控制器和不同控制器中编写查询。
在用户控制器中 $ data = $ this-＆gt; Users-＆gt; find（'all'）; PR（$数据）;
Out Put：
Cake\ORM\Query Object
(
[_hasFields:protected] =>
[_autoFields:protected] =>
[_hydrate:protected] => 1
[_counter:protected] =>
[_eagerLoader:protected] =>
[_beforeFindFired:protected] =>
[_connection:protected] => Cake\Database\Connection Object
(
[_config:protected] => Array
(
[driver] => Cake\Database\Driver\Mysql
[persistent] =>
[host] => localhost
[username] => root
[password] =>
[database] => lenders
[encoding] => utf8
[timezone] => UTC
[cacheMetadata] => 1
[log] =>
[quoteIdentifiers] =>
[name] => default
)
[_driver:protected] => Cake\Database\Driver\Mysql Object
(
[_baseConfig:protected] => Array
(
[persistent] => 1
[host] => localhost
[username] => root
[password] =>
[database] => cake
[port] => 3306
[flags] => Array
(
)
[encoding] => utf8
[timezone] =>
[init] => Array
(
)
)
[_config:protected] => Array
(
[driver] => Cake\Database\Driver\Mysql
[persistent] =>
[host] => localhost
[username] => root
[password] =>
[database] => lenders
[encoding] => utf8
[timezone] => UTC
[cacheMetadata] => 1
[log] =>
[quoteIdentifiers] =>
[name] => default
[port] => 3306
[flags] => Array
(
)
[init] => Array
(
)
)
[_autoQuoting:protected] =>
[_startQuote:protected] => `
[_endQuote:protected] => `
[_schemaDialect:protected] => Cake\Database\Schema\MysqlSchema Object
(
[_driver:protected] => Cake\Database\Driver\Mysql Object
*RECURSION*
)
[_connection:protected] => PDO Object
(
)
)
[_transactionLevel:protected] => 0
[_transactionStarted:protected] =>
[_useSavePoints:protected] =>
[_logQueries:protected] => 1
[_logger:protected] => DebugKit\Database\Log\DebugLog Object
(
[_queries:protected] => Array
(
)
[_logger:protected] =>
[_connectionName:protected] => default
[_totalTime:protected] => 0
[_totalRows:protected] => 0
)
[_schemaCollection:protected] => Cake\Database\Schema\CachedCollection Object
(
[_cache:protected] => _cake_model_
[_connection:protected] => Cake\Database\Connection Object
*RECURSION*
[_dialect:protected] => Cake\Database\Schema\MysqlSchema Object
(
[_driver:protected] => Cake\Database\Driver\Mysql Object
(
[_baseConfig:protected] => Array
(
[persistent] => 1
[host] => localhost
[username] => root
[password] =>
[database] => cake
[port] => 3306
[flags] => Array
(
)
[encoding] => utf8
[timezone] =>
[init] => Array
(
)
)
[_config:protected] => Array
(
[driver] => Cake\Database\Driver\Mysql
[persistent] =>
[host] => localhost
[username] => root
[password] =>
[database] => lenders
[encoding] => utf8
[timezone] => UTC
[cacheMetadata] => 1
[log] =>
[quoteIdentifiers] =>
[name] => default
[port] => 3306
[flags] => Array
(
)
[init] => Array
(
)
)
[_autoQuoting:protected] =>
[_startQuote:protected] => `
[_endQuote:protected] => `
[_schemaDialect:protected] => Cake\Database\Schema\MysqlSchema Object
*RECURSION*
[_connection:protected] => PDO Object
(
)
)
)
)
)
[_type:protected] => select
[_parts:protected] => Array
(
[delete] => 1
[update] => Array
(
)
[set] => Array
(
)
[insert] => Array
(
)
[values] => Array
(
)
[select] => Array
(
)
[distinct] =>
[modifier] => Array
(
)
[from] => Array
(
)
[join] => Array
(
)
[where] =>
[group] => Array
(
)
[having] =>
[order] =>
[limit] =>
[offset] =>
[union] => Array
(
)
[epilog] =>
)
[_dirty:protected] => 1
[_resultDecorators:protected] => Array
(
)
[_iterator:protected] =>
[_valueBinder:protected] =>
[_functionsBuilder:protected] =>
[_useBufferedResults:protected] => 1
[_typeMap:protected] => Cake\Database\TypeMap Object
(
[_defaults:protected] => Array
(
[Users.id] => integer
[id] => integer
[Users.username] => string
[username] => string
[Users.password] => string
[password] => string
[Users.first_name] => string
[first_name] => string
[Users.last_name] => string
[last_name] => string
[Users.email] => string
[email] => string
[Users.status] => integer
[status] => integer
[Users.group_id] => integer
[group_id] => integer
[Users.created_by] => integer
[created_by] => integer
[Users.created] => datetime
[created] => datetime
[Users.modifiedmodified] => datetime
[modifiedmodified] => datetime
[Users.modified_by] => integer
[modified_by] => integer
[Users.last_login] => datetime
[last_login] => datetime
[Users.login_attempts] => integer
[login_attempts] => integer
[Users.unlocktime] => datetime
[unlocktime] => datetime
)
[_types:protected] => Array
(
)
)
[_repository:protected] => App\Model\Table\UsersTable Object
(
[_table:protected] => users
[_alias:protected] => Users
[_connection:protected] => Cake\Database\Connection Object
(
[_config:protected] => Array
(
[driver] => Cake\Database\Driver\Mysql
[persistent] =>
[host] => localhost
[username] => root
[password] =>
[database] => lenders
[encoding] => utf8
[timezone] => UTC
[cacheMetadata] => 1
[log] =>
[quoteIdentifiers] =>
[name] => default
)
[_driver:protected] => Cake\Database\Driver\Mysql Object
(
[_baseConfig:protected] => Array
(
[persistent] => 1
[host] => localhost
[username] => root
[password] =>
[database] => cake
[port] => 3306
[flags] => Array
(
)
[encoding] => utf8
[timezone] =>
[init] => Array
(
)
)
[_config:protected] => Array
(
[driver] => Cake\Database\Driver\Mysql
[persistent] =>
[host] => localhost
[username] => root
[password] =>
[database] => lenders
[encoding] => utf8
[timezone] => UTC
[cacheMetadata] => 1
[log] =>
[quoteIdentifiers] =>
[name] => default
[port] => 3306
[flags] => Array
(
)
[init] => Array
(
)
)
[_autoQuoting:protected] =>
[_startQuote:protected] => `
[_endQuote:protected] => `
[_schemaDialect:protected] => Cake\Database\Schema\MysqlSchema Object
(
[_driver:protected] => Cake\Database\Driver\Mysql Object
*RECURSION*
)
[_connection:protected] => PDO Object
(
)
)
[_transactionLevel:protected] => 0
[_transactionStarted:protected] =>
[_useSavePoints:protected] =>
[_logQueries:protected] => 1
[_logger:protected] => DebugKit\Database\Log\DebugLog Object
(
[_queries:protected] => Array
(
)
[_logger:protected] =>
[_connectionName:protected] => default
[_totalTime:protected] => 0
[_totalRows:protected] => 0
)
[_schemaCollection:protected] => Cake\Database\Schema\CachedCollection Object
(
[_cache:protected] => _cake_model_
[_connection:protected] => Cake\Database\Connection Object
*RECURSION*
[_dialect:protected] => Cake\Database\Schema\MysqlSchema Object
(
[_driver:protected] => Cake\Database\Driver\Mysql Object
(
[_baseConfig:protected] => Array
(
[persistent] => 1
[host] => localhost
[username] => root
[password] =>
[database] => cake
[port] => 3306
[flags] => Array
(
)
[encoding] => utf8
[timezone] =>
[init] => Array
(
)
)
[_config:protected] => Array
(
[driver] => Cake\Database\Driver\Mysql
[persistent] =>
[host] => localhost
[username] => root
[password] =>
[database] => lenders
[encoding] => utf8
[timezone] => UTC
[cacheMetadata] => 1
[log] =>
[quoteIdentifiers] =>
[name] => default
[port] => 3306
[flags] => Array
(
)
[init] => Array
(
)
)
[_autoQuoting:protected] =>
[_startQuote:protected] => `
[_endQuote:protected] => `
[_schemaDialect:protected] => Cake\Database\Schema\MysqlSchema Object
*RECURSION*
[_connection:protected] => PDO Object
(
)
)
)
)
)
.........
请帮我在cakephp 3.x中编写mysql查询，以及如何在飞行中加载Model并选择数据。
答案 0 :(得分：0)
要访问不同控制器中的表数据，可以使用提供的TableRegistry类：
class OtherController extends AppController
{
public function yourEndpoint()
{
$users_table = TableRegistry::get('Users');
$user_collection = $users_table->find()->all();
$this->set('users_collection', $users_collection);
}
}
此外，您当前的查询，$ this-＆gt; Users-＆gt; find（'all'）;只返回一个查询对象本身。要返回结果集本身，您需要迭代结果集或将其强制转换为数组。以下是一些可用于从查询对象返回结果集的方法：
// The ->find() function returns a query object!
$base_query = $users_table->find();
// 1. Using the foreach() iterator
foreach($base_query as $user) {
echo $user->name;
}
// 2. Using the native Collections Class each iterator
$base_query->each(function ($user) {
echo $user->name;
}
// 3. Getting all results of a set using ->all()
$result_set = $base_query->all();
// 4. Casting to an array using ->toArray()
$result_array = $base_query->toArray();
查看表格对象上的CakePHP 3 Documentation。
祝你好运！