Question

我使用Doctrine，通过StofDoctrineExtensionsBundle使用DoctrineExtensions，使用“Doctrine Extensions Sluggable”行为自动生成slu。。

听众似乎已正确注册。实体字段也标记为可缓慢。

当试图通过Symfony形式保持我的实体时，不会发生slug生成。正在抛出数据库异常。

例外：

An exception occurred while executing 'INSERT INTO event (startDate, endDate, title, slug, description, image, followers, city, place) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)' with params ["2017-06-24 20:00:00", "2017-06-26 12:00:00", "Test event name for slug generation", null, "Test", null, null, "Somewhere", "Somewhere else"]:

SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'slug' cannot be null

版本：

PHP                                  7.0.15
symfony/symfony                      v3.2.9
doctrine/doctrine-bundle             1.6.8
doctrine/orm                         v2.5.6
gedmo/doctrine-extensions            v2.4.29
stof/doctrine-extensions-bundle      v1.2.2

config.yml

doctrine:
    dbal:
        driver: pdo_mysql
        host: '%database_host%'
        port: '%database_port%'
        dbname: '%database_name%'
        user: '%database_user%'
        password: '%database_password%'
        charset: UTF8
    orm:
        auto_generate_proxy_classes: '%kernel.debug%'
        naming_strategy: doctrine.orm.naming_strategy.underscore
        auto_mapping: true

stof_doctrine_extensions:
    default_locale: '%locale%' # pl
    translation_fallback: true
    orm:
        default:
            sluggable: true

实体（Event.orm.xml）

<?xml version="1.0" encoding="utf-8"?>
<doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping"
                  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                  xsi:schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping http://doctrine-project.org/schemas/orm/doctrine-mapping.xsd"
                  xmlns:gedmo="http://Atlantic18.github.io/DoctrineExtensions/schemas/orm/doctrine-extensions-3.0.xsd">
    <entity repository-class="AppBundle\Repository\EventRepository" name="AppBundle\Entity\Event">
        <id name="id" type="integer" column="id">
            <generator strategy="AUTO"/>
        </id>
        <field name="startDate" type="datetime" column="startDate"/>
        <field name="endDate" type="datetime" column="endDate"/>
        <field name="title" type="string" column="title" length="255"/>
        <field name="slug" type="string" column="slug" length="255" unique="true">
            <gedmo:slug unique="true" updatable="true" fields="title" separator="-" />
        </field>
        <field name="description" type="text" column="description" nullable="true"/>
        <field name="image" type="string" column="image" length="255" nullable="true"/>
        <field name="followers" type="integer" column="followers" nullable="true"/>
        <field name="city" type="string" column="city" nullable="false" />
        <field name="place" type="string" column="place" nullable="true" />
    </entity>
</doctrine-mapping>

控制器动作：

    public function createAction(Request $request)
    {
        $form = $this->createForm(EventType::class);

        $form->handleRequest($request);

        if ($form->isSubmitted() && $form->isValid()) {
            /** @var Event $event */
            $event = $form->getData();

            $em = $this->getDoctrine()->getManager();
            $em->persist($event);
            $em->flush();

            $this->addFlash('success', 'event created');
            return $this->redirectToRoute('calendar_event', [
                'slug' => $event->getSlug()
            ]);
        }

        return ['form' => $form->createView()];
    }

完整堆栈跟踪：

[1] Doctrine\DBAL\Exception\NotNullConstraintViolationException: An exception occurred while executing 'INSERT INTO event (startDate, endDate, title, slug, description, image, followers, city, place) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)' with params ["2017-06-24 20:00:00", "2017-06-26 12:00:00", "Test event name for slug generation", null, "Test", null, null, "Somewhere", "Somewhere else"]:

SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'slug' cannot be null
    at n/a
        in /project_home/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/AbstractMySQLDriver.php line 112

    at Doctrine\DBAL\Driver\AbstractMySQLDriver->convertException('An exception occurred while executing \'INSERT INTO event (startDate, endDate, title, slug, description, image, followers, city, place) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)\' with params ["2017-06-24 20:00:00", "2017-06-26 12:00:00", "Test event name for slug generation", null, "Test", null, null, "Somewhere", "Somewhere else"]:SQLSTATE[23000]: Integrity constraint violation: 1048 Column \'slug\' cannot be null', object(PDOException))
        in /project_home/vendor/doctrine/dbal/lib/Doctrine/DBAL/DBALException.php line 128

    at Doctrine\DBAL\DBALException::driverExceptionDuringQuery(object(Driver), object(PDOException), 'INSERT INTO event (startDate, endDate, title, slug, description, image, followers, city, place) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)', array('2017-06-24 20:00:00', '2017-06-26 12:00:00', 'Test event name for slug generation', null, 'Test', null, null, 'Somewhere', 'Somewhere else'))
        in /project_home/vendor/doctrine/dbal/lib/Doctrine/DBAL/Statement.php line 177

    at Doctrine\DBAL\Statement->execute()
        in /project_home/vendor/doctrine/orm/lib/Doctrine/ORM/Persisters/Entity/BasicEntityPersister.php line 281

    at Doctrine\ORM\Persisters\Entity\BasicEntityPersister->executeInserts()
        in /project_home/vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php line 1014

    at Doctrine\ORM\UnitOfWork->executeInserts(object(ClassMetadata))
        in /project_home/vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php line 378

    at Doctrine\ORM\UnitOfWork->commit(null)
        in /project_home/vendor/doctrine/orm/lib/Doctrine/ORM/EntityManager.php line 356

    at Doctrine\ORM\EntityManager->flush(null)
        in /project_home/var/cache/dev/appDevDebugProjectContainer.php line 7072

    at DoctrineORMEntityManager_00000000751279ee000000007e7efeea3473a0393d6fcd1415b2fc588e376308->flush(null)
        in /project_home/var/cache/dev/jms_diextra/doctrine/EntityManager_59394e2cc7d86.php line 313

    at EntityManager59394e2cc7d86_546a8d27f194334ee012bfe64f629947b07e4919\__CG__\Doctrine\ORM\EntityManager->flush()
        in /project_home/src/AppBundle/Controller/CalendarController.php line 56

    at AppBundle\Controller\CalendarController->createAction(object(Request))
        in  line 

    at ReflectionMethod->invokeArgs(object(CalendarController), array(object(Request)))
        in /project_home/vendor/jms/cg/src/CG/Proxy/MethodInvocation.php line 84

    at CG\Proxy\MethodInvocation->proceed()
        in /project_home/vendor/jms/security-extra-bundle/Security/Authorization/Interception/MethodSecurityInterceptor.php line 133

    at JMS\SecurityExtraBundle\Security\Authorization\Interception\MethodSecurityInterceptor->intercept(object(MethodInvocation))
        in /project_home/vendor/jms/cg/src/CG/Proxy/MethodInvocation.php line 79

    at CG\Proxy\MethodInvocation->proceed()
        in /project_home/var/cache/dev/jms_diextra/proxies/AppBundle-Controller-CalendarController.php line 21

    at EnhancedProxye0ff800f_2852d4e43776e45f00f38751350397dbf530e575\__CG__\AppBundle\Controller\CalendarController->createAction(object(Request))
        in  line 

    at call_user_func_array(array(object(CalendarController), 'createAction'), array(object(Request)))
        in /project_home/var/cache/dev/classes.php line 4228

    at Symfony\Component\HttpKernel\HttpKernel->handleRaw(object(Request), 1)
        in /project_home/var/cache/dev/classes.php line 4183

    at Symfony\Component\HttpKernel\HttpKernel->handle(object(Request), 1, true)
        in /project_home/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Kernel.php line 168

    at Symfony\Component\HttpKernel\Kernel->handle(object(Request))
        in /project_home/web/app_dev.php line 28

    at require('/project_home/web/app_dev.php')
        in /project_home/vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/Resources/config/router_dev.php line 40

[2] Doctrine\DBAL\Driver\PDOException: SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'slug' cannot be null
    at n/a
        in /project_home/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOStatement.php line 93

    at Doctrine\DBAL\Driver\PDOStatement->execute(null)
        in /project_home/vendor/doctrine/dbal/lib/Doctrine/DBAL/Statement.php line 168

    at Doctrine\DBAL\Statement->execute()
        in /project_home/vendor/doctrine/orm/lib/Doctrine/ORM/Persisters/Entity/BasicEntityPersister.php line 281

    at Doctrine\ORM\Persisters\Entity\BasicEntityPersister->executeInserts()
        in /project_home/vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php line 1014

    at Doctrine\ORM\UnitOfWork->executeInserts(object(ClassMetadata))
        in /project_home/vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php line 378

    at Doctrine\ORM\UnitOfWork->commit(null)
        in /project_home/vendor/doctrine/orm/lib/Doctrine/ORM/EntityManager.php line 356

    at Doctrine\ORM\EntityManager->flush(null)
        in /project_home/var/cache/dev/appDevDebugProjectContainer.php line 7072

    at DoctrineORMEntityManager_00000000751279ee000000007e7efeea3473a0393d6fcd1415b2fc588e376308->flush(null)
        in /project_home/var/cache/dev/jms_diextra/doctrine/EntityManager_59394e2cc7d86.php line 313

    at EntityManager59394e2cc7d86_546a8d27f194334ee012bfe64f629947b07e4919\__CG__\Doctrine\ORM\EntityManager->flush()
        in /project_home/src/AppBundle/Controller/CalendarController.php line 56

    at AppBundle\Controller\CalendarController->createAction(object(Request))
        in  line 

    at ReflectionMethod->invokeArgs(object(CalendarController), array(object(Request)))
        in /project_home/vendor/jms/cg/src/CG/Proxy/MethodInvocation.php line 84

    at CG\Proxy\MethodInvocation->proceed()
        in /project_home/vendor/jms/security-extra-bundle/Security/Authorization/Interception/MethodSecurityInterceptor.php line 133

    at JMS\SecurityExtraBundle\Security\Authorization\Interception\MethodSecurityInterceptor->intercept(object(MethodInvocation))
        in /project_home/vendor/jms/cg/src/CG/Proxy/MethodInvocation.php line 79

    at CG\Proxy\MethodInvocation->proceed()
        in /project_home/var/cache/dev/jms_diextra/proxies/AppBundle-Controller-CalendarController.php line 21

    at EnhancedProxye0ff800f_2852d4e43776e45f00f38751350397dbf530e575\__CG__\AppBundle\Controller\CalendarController->createAction(object(Request))
        in  line 

    at call_user_func_array(array(object(CalendarController), 'createAction'), array(object(Request)))
        in /project_home/var/cache/dev/classes.php line 4228

    at Symfony\Component\HttpKernel\HttpKernel->handleRaw(object(Request), 1)
        in /project_home/var/cache/dev/classes.php line 4183

    at Symfony\Component\HttpKernel\HttpKernel->handle(object(Request), 1, true)
        in /project_home/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Kernel.php line 168

    at Symfony\Component\HttpKernel\Kernel->handle(object(Request))
        in /project_home/web/app_dev.php line 28

    at require('/project_home/web/app_dev.php')
        in /project_home/vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/Resources/config/router_dev.php line 40

[3] PDOException: SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'slug' cannot be null
    at n/a
        in /project_home/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOStatement.php line 91

    at PDOStatement->execute(null)
        in /project_home/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOStatement.php line 91

    at Doctrine\DBAL\Driver\PDOStatement->execute(null)
        in /project_home/vendor/doctrine/dbal/lib/Doctrine/DBAL/Statement.php line 168

    at Doctrine\DBAL\Statement->execute()
        in /project_home/vendor/doctrine/orm/lib/Doctrine/ORM/Persisters/Entity/BasicEntityPersister.php line 281

    at Doctrine\ORM\Persisters\Entity\BasicEntityPersister->executeInserts()
        in /project_home/vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php line 1014

    at Doctrine\ORM\UnitOfWork->executeInserts(object(ClassMetadata))
        in /project_home/vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php line 378

    at Doctrine\ORM\UnitOfWork->commit(null)
        in /project_home/vendor/doctrine/orm/lib/Doctrine/ORM/EntityManager.php line 356

    at Doctrine\ORM\EntityManager->flush(null)
        in /project_home/var/cache/dev/appDevDebugProjectContainer.php line 7072

    at DoctrineORMEntityManager_00000000751279ee000000007e7efeea3473a0393d6fcd1415b2fc588e376308->flush(null)
        in /project_home/var/cache/dev/jms_diextra/doctrine/EntityManager_59394e2cc7d86.php line 313

    at EntityManager59394e2cc7d86_546a8d27f194334ee012bfe64f629947b07e4919\__CG__\Doctrine\ORM\EntityManager->flush()
        in /project_home/src/AppBundle/Controller/CalendarController.php line 56

    at AppBundle\Controller\CalendarController->createAction(object(Request))
        in  line 

    at ReflectionMethod->invokeArgs(object(CalendarController), array(object(Request)))
        in /project_home/vendor/jms/cg/src/CG/Proxy/MethodInvocation.php line 84

    at CG\Proxy\MethodInvocation->proceed()
        in /project_home/vendor/jms/security-extra-bundle/Security/Authorization/Interception/MethodSecurityInterceptor.php line 133

    at JMS\SecurityExtraBundle\Security\Authorization\Interception\MethodSecurityInterceptor->intercept(object(MethodInvocation))
        in /project_home/vendor/jms/cg/src/CG/Proxy/MethodInvocation.php line 79

    at CG\Proxy\MethodInvocation->proceed()
        in /project_home/var/cache/dev/jms_diextra/proxies/AppBundle-Controller-CalendarController.php line 21

    at EnhancedProxye0ff800f_2852d4e43776e45f00f38751350397dbf530e575\__CG__\AppBundle\Controller\CalendarController->createAction(object(Request))
        in  line 

    at call_user_func_array(array(object(CalendarController), 'createAction'), array(object(Request)))
        in /project_home/var/cache/dev/classes.php line 4228

    at Symfony\Component\HttpKernel\HttpKernel->handleRaw(object(Request), 1)
        in /project_home/var/cache/dev/classes.php line 4183

    at Symfony\Component\HttpKernel\HttpKernel->handle(object(Request), 1, true)
        in /project_home/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Kernel.php line 168

    at Symfony\Component\HttpKernel\Kernel->handle(object(Request))
        in /project_home/web/app_dev.php line 28

    at require('/project_home/web/app_dev.php')
        in /project_home/vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/Resources/config/router_dev.php line 40

Answer 1

我看到的唯一区别是你的xml命名空间声明。您正在引用版本3.x的URL，同时使用2.x版本。官方文档使用此架构

from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.button import Button


class MainWindow(BoxLayout):
    def __init__(self, **kwargs):
        super(MainWindow, self).__init__(**kwargs)
        self.orientation= 'vertical'
        for i in range(5):
            self.btn = Button(text='Button ' + str(i) ,
                              on_press=self.remove_filter_btn)
            self.add_widget(self.btn)

    def remove_filter_btn(self,  instance):
        self.remove_widget(instance)

class MyApp(App):
    def build(self):
        return MainWindow()

if __name__ == '__main__':
    MyApp().run()

确保相应地更新xml映射：

http://gediminasm.org/schemas/orm/doctrine-extensions-mappin‌g

Answer 2

当我实现StofDoctrineExtensionsBundle时，我第一次执行了一个将所有slug值设置为null的函数。（当slug设置为null时，将调用侦听器填充slug值。

希望这有帮助。

Answer 3

正如例外情况告诉你的那样：

'slug' cannot be null

你需要修改'Event.orm.xml'中的属性定义，并使slug可以为空，因为默认情况下它是可为空的。

所以你需要改变你的定义：

        <field name="slug" type="string" column="slug" length="255" unique="true" nullable="false">
            <gedmo:slug unique="true" updatable="true" fields="title" separator="-" />
        </field>

这将解决您的异常。但是，真正的问题是对slug属性的唯一约束：第二次插入和带有'null'值的Event时，它将触发唯一约束，因为已经存在一个带有null slug的行。因此，您需要提供slug或删除唯一约束。

主义可耻 - 列'slug'不能为空

3 个答案: