8 (create)

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8 (create)

The CREATE USER statement creates new MySQL accounts. It enables authentication, role, SSL/TLS, resource-limit, and password-management properties to be established for new accounts. It also controls whether accounts are initially locked or unlocked.

To use CREATE USER , you must have the global CREATE USER privilege, or the INSERT privilege for the mysql system schema. When the read_only system variable is enabled, CREATE USER additionally requires the CONNECTION_ADMIN or SUPER privilege.

CREATE USER either succeeds for all named users or rolls back and has no effect if any error occurs. By default, an error occurs if you try to create a user that already exists. If the IF NOT EXISTS clause is given, the statement produces a warning for each named user that already exists, rather than an error.

Under some circumstances, CREATE USER may be recorded in server logs or on the client side in a history file such as

/.mysql_history , which means that cleartext passwords may be read by anyone having read access to that information. For information about the conditions under which this occurs for the server logs and how to control it, see Section 6.1.2.3, “Passwords and Logging”. For similar information about client-side logging, see Section 4.5.1.3, “mysql Client Logging”.

There are several aspects to the CREATE USER statement, described under the following topics:

CREATE USER Overview

For each account, CREATE USER creates a new row in the mysql.user system table. The account row reflects the properties specified in the statement. Unspecified properties are set to their default values:

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Authentication: The authentication plugin defined by the default_authentication_plugin system variable, and empty credentials

Default role: NONE

Resource limits: Unlimited

Password management: PASSWORD EXPIRE DEFAULT PASSWORD HISTORY DEFAULT PASSWORD REUSE INTERVAL DEFAULT PASSWORD REQUIRE CURRENT DEFAULT ; failed-login tracking and temporary account locking are disabled

Account locking: ACCOUNT UNLOCK

An account when first created has no privileges and a default role of NONE . To assign privileges or roles, use the GRANT statement.

Each account name uses the format described in Section 6.2.4, “Specifying Account Names”. For example:

The host name part of the account name, if omitted, defaults to ‘%’ .

Each user value naming an account may be followed by an optional auth_option value that indicates how the account authenticates. These values enable account authentication plugins and credentials (for example, a password) to be specified. Each auth_option value applies only to the account named immediately preceding it.

Following the user specifications, the statement may include options for SSL/TLS, resource-limit, password-management, and locking properties. All such options are global to the statement and apply to all accounts named in the statement.

Example: Create an account that uses the default authentication plugin and the given password. Mark the password expired so that the user must choose a new one at the first connection to the server:

Example: Create an account that uses the caching_sha2_password authentication plugin and the given password. Require that a new password be chosen every 180 days, and enable failed-login tracking, such that three consecutive incorrect passwords cause temporary account locking for two days:

Example: Create multiple accounts, specifying some per-account properties and some global properties:

Each auth_option value ( IDENTIFIED WITH . BY in this case) applies only to the account named immediately preceding it, so each account uses the immediately following authentication plugin and password.

The remaining properties apply globally to all accounts named in the statement, so for both accounts:

Connections must be made using a valid X.509 certificate.

Up to 60 queries per hour are permitted.

Password changes cannot reuse any of the five most recent passwords.

The account is locked initially, so effectively it is a placeholder and cannot be used until an administrator unlocks it.

CREATE USER Authentication Options

An account name may be followed by an auth_option authentication option that specifies the account authentication plugin, credentials, or both.

Clauses for random password generation apply only to accounts that use an authentication plugin that stores credentials internally to MySQL. For accounts that use a plugin that performs authentication against a credentials system that is external to MySQL, password management must be handled externally against that system as well. For more information about internal credentials storage, see Section 6.2.15, “Password Management”.

auth_plugin names an authentication plugin. The plugin name can be a quoted string literal or an unquoted name. Plugin names are stored in the plugin column of the mysql.user system table.

For auth_option syntax that does not specify an authentication plugin, the default plugin is indicated by the value of the default_authentication_plugin system variable. For descriptions of each plugin, see Section 6.4.1, “Authentication Plugins”.

Credentials that are stored internally are stored in the mysql.user system table. An ‘ auth_string ‘ value or RANDOM PASSWORD specifies account credentials, either as a cleartext (unencrypted) string or hashed in the format expected by the authentication plugin associated with the account, respectively:

For syntax that uses BY ‘ auth_string ‘ , the string is cleartext and is passed to the authentication plugin for possible hashing. The result returned by the plugin is stored in the mysql.user table. A plugin may use the value as specified, in which case no hashing occurs.

For syntax that uses BY RANDOM PASSWORD , MySQL generates a random password and as cleartext and passes it to the authentication plugin for possible hashing. The result returned by the plugin is stored in the mysql.user table. A plugin may use the value as specified, in which case no hashing occurs.

Randomly generated passwords are available as of MySQL 8.0.18 and have the characteristics described in Random Password Generation.

For syntax that uses AS ‘ auth_string ‘ , the string is assumed to be already in the format the authentication plugin requires, and is stored as is in the mysql.user table. If a plugin requires a hashed value, the value must be already hashed in a format appropriate for the plugin, or the value will not be usable by the plugin and correct authentication of client connections will not occur.

As of MySQL 8.0.17, a hashed string can be either a string literal or a hexadecimal value. The latter corresponds to the type of value displayed by SHOW CREATE USER for password hashes containing unprintable characters when the print_identified_with_as_hex system variable is enabled.

If an authentication plugin performs no hashing of the authentication string, the BY ‘ auth_string ‘ and AS ‘ auth_string ‘ clauses have the same effect: The authentication string is stored as is in the mysql.user system table.

CREATE USER permits these auth_option syntaxes:

IDENTIFIED BY ‘ auth_string ‘

Sets the account authentication plugin to the default plugin, passes the cleartext ‘ auth_string ‘ value to the plugin for possible hashing, and stores the result in the account row in the mysql.user system table.

IDENTIFIED BY RANDOM PASSWORD

Sets the account authentication plugin to the default plugin, generates a random password, passes the cleartext password value to the plugin for possible hashing, and stores the result in the account row in the mysql.user system table. The statement also returns the cleartext password in a result set to make it available to the user or application executing the statement. For details about the result set and characteristics of randomly generated passwords, see Random Password Generation.

IDENTIFIED WITH auth_plugin

Sets the account authentication plugin to auth_plugin , clears the credentials to the empty string, and stores the result in the account row in the mysql.user system table.

IDENTIFIED WITH auth_plugin BY ‘ auth_string ‘

Sets the account authentication plugin to auth_plugin , passes the cleartext ‘ auth_string ‘ value to the plugin for possible hashing, and stores the result in the account row in the mysql.user system table.

IDENTIFIED WITH auth_plugin BY RANDOM PASSWORD

Sets the account authentication plugin to auth_plugin , generates a random password, passes the cleartext password value to the plugin for possible hashing, and stores the result in the account row in the mysql.user system table. The statement also returns the cleartext password in a result set to make it available to the user or application executing the statement. For details about the result set and characteristics of randomly generated passwords, see Random Password Generation.

IDENTIFIED WITH auth_plugin AS ‘ auth_string ‘

Sets the account authentication plugin to auth_plugin and stores the ‘ auth_string ‘ value as is in the mysql.user account row. If the plugin requires a hashed string, the string is assumed to be already hashed in the format the plugin requires.

Example: Specify the password as cleartext; the default plugin is used:

Example: Specify the authentication plugin, along with a cleartext password value:

In each case, the password value stored in the account row is the cleartext value ‘ password ‘ after it has been hashed by the authentication plugin associated with the account.

For additional information about setting passwords and authentication plugins, see Section 6.2.14, “Assigning Account Passwords”, and Section 6.2.17, “Pluggable Authentication”.

CREATE USER Role Options

The DEFAULT ROLE clause defines which roles become active when the user connects to the server and authenticates, or when the user executes the SET ROLE DEFAULT statement during a session.

Each role name uses the format described in Section 6.2.5, “Specifying Role Names”. For example:

The host name part of the role name, if omitted, defaults to ‘%’ .

The DEFAULT ROLE clause permits a list of one or more comma-separated role names. These roles need not exist at the time CREATE USER is executed.

CREATE USER SSL/TLS Options

MySQL can check X.509 certificate attributes in addition to the usual authentication that is based on the user name and credentials. For background information on the use of SSL/TLS with MySQL, see Section 6.3, “Using Encrypted Connections”.

To specify SSL/TLS-related options for a MySQL account, use a REQUIRE clause that specifies one or more tls_option values.

Order of REQUIRE options does not matter, but no option can be specified twice. The AND keyword is optional between REQUIRE options.

CREATE USER permits these tls_option values:

Indicates that all accounts named by the statement have no SSL or X.509 requirements. Unencrypted connections are permitted if the user name and password are valid. Encrypted connections can be used, at the client’s option, if the client has the proper certificate and key files.

Clients attempt to establish a secure connection by default. For clients that have REQUIRE NONE , the connection attempt falls back to an unencrypted connection if a secure connection cannot be established. To require an encrypted connection, a client need specify only the —ssl-mode=REQUIRED option; the connection attempt fails if a secure connection cannot be established.

NONE is the default if no SSL-related REQUIRE options are specified.

Tells the server to permit only encrypted connections for all accounts named by the statement.

Clients attempt to establish a secure connection by default. For accounts that have REQUIRE SSL , the connection attempt fails if a secure connection cannot be established.

For all accounts named by the statement, requires that clients present a valid certificate, but the exact certificate, issuer, and subject do not matter. The only requirement is that it should be possible to verify its signature with one of the CA certificates. Use of X.509 certificates always implies encryption, so the SSL option is unnecessary in this case.

For accounts with REQUIRE X509 , clients must specify the —ssl-key and —ssl-cert options to connect. (It is recommended but not required that —ssl-ca also be specified so that the public certificate provided by the server can be verified.) This is true for ISSUER and SUBJECT as well because those REQUIRE options imply the requirements of X509 .

For all accounts named by the statement, requires that clients present a valid X.509 certificate issued by CA ‘ issuer ‘ . If a client presents a certificate that is valid but has a different issuer, the server rejects the connection. Use of X.509 certificates always implies encryption, so the SSL option is unnecessary in this case.

Because ISSUER implies the requirements of X509 , clients must specify the —ssl-key and —ssl-cert options to connect. (It is recommended but not required that —ssl-ca also be specified so that the public certificate provided by the server can be verified.)

For all accounts named by the statement, requires that clients present a valid X.509 certificate containing the subject subject . If a client presents a certificate that is valid but has a different subject, the server rejects the connection. Use of X.509 certificates always implies encryption, so the SSL option is unnecessary in this case.

MySQL does a simple string comparison of the ‘ subject ‘ value to the value in the certificate, so lettercase and component ordering must be given exactly as present in the certificate.

Because SUBJECT implies the requirements of X509 , clients must specify the —ssl-key and —ssl-cert options to connect. (It is recommended but not required that —ssl-ca also be specified so that the public certificate provided by the server can be verified.)

For all accounts named by the statement, requires a specific cipher method for encrypting connections. This option is needed to ensure that ciphers and key lengths of sufficient strength are used. Encryption can be weak if old algorithms using short encryption keys are used.

The SUBJECT , ISSUER , and CIPHER options can be combined in the REQUIRE clause:

CREATE USER Resource-Limit Options

It is possible to place limits on use of server resources by an account, as discussed in Section 6.2.20, “Setting Account Resource Limits”. To do so, use a WITH clause that specifies one or more resource_option values.

Order of WITH options does not matter, except that if a given resource limit is specified multiple times, the last instance takes precedence.

CREATE USER permits these resource_option values:

MAX_QUERIES_PER_HOUR count , MAX_UPDATES_PER_HOUR count , MAX_CONNECTIONS_PER_HOUR count

For all accounts named by the statement, these options restrict how many queries, updates, and connections to the server are permitted to each account during any given one-hour period. If count is 0 (the default), this means that there is no limitation for the account.

For all accounts named by the statement, restricts the maximum number of simultaneous connections to the server by each account. A nonzero count specifies the limit for the account explicitly. If count is 0 (the default), the server determines the number of simultaneous connections for the account from the global value of the max_user_connections system variable. If max_user_connections is also zero, there is no limit for the account.

CREATE USER Password-Management Options

CREATE USER supports several password_option values for password management:

Password expiration options: You can expire an account password manually and establish its password expiration policy. Policy options do not expire the password. Instead, they determine how the server applies automatic expiration to the account based on password age, which is assessed from the date and time of the most recent account password change.

Password reuse options: You can restrict password reuse based on number of password changes, time elapsed, or both.

Password verification-required options: You can indicate whether attempts to change an account password must specify the current password, as verification that the user attempting to make the change actually knows the current password.

Incorrect-password failed-login tracking options: You can cause the server to track failed login attempts and temporarily lock accounts for which too many consecutive incorrect passwords are given. The required number of failures and the lock time are configurable.

This section describes the syntax for password-management options. For information about establishing policy for password management, see Section 6.2.15, “Password Management”.

If multiple password-management options of a given type are specified, the last one takes precedence. For example, PASSWORD EXPIRE DEFAULT PASSWORD EXPIRE NEVER is the same as PASSWORD EXPIRE NEVER .

Except for the options that pertain to failed-login tracking, password-management options apply only to accounts that use an authentication plugin that stores credentials internally to MySQL. For accounts that use a plugin that performs authentication against a credentials system that is external to MySQL, password management must be handled externally against that system as well. For more information about internal credentials storage, see Section 6.2.15, “Password Management”.

A client has an expired password if the account password was expired manually or the password age is considered greater than its permitted lifetime per the automatic expiration policy. In this case, the server either disconnects the client or restricts the operations permitted to it (see Section 6.2.16, “Server Handling of Expired Passwords”). Operations performed by a restricted client result in an error until the user establishes a new account password.

CREATE USER permits these password_option values for controlling password expiration:

Immediately marks the password expired for all accounts named by the statement.

PASSWORD EXPIRE DEFAULT

Sets all accounts named by the statement so that the global expiration policy applies, as specified by the default_password_lifetime system variable.

PASSWORD EXPIRE NEVER

This expiration option overrides the global policy for all accounts named by the statement. For each, it disables password expiration so that the password never expires.

PASSWORD EXPIRE INTERVAL N DAY

This expiration option overrides the global policy for all accounts named by the statement. For each, it sets the password lifetime to N days. The following statement requires the password to be changed every 180 days:

CREATE USER permits these password_option values for controlling reuse of previous passwords based on required minimum number of password changes:

PASSWORD HISTORY DEFAULT

Sets all accounts named by the statement so that the global policy about password history length applies, to prohibit reuse of passwords before the number of changes specified by the password_history system variable.

PASSWORD HISTORY N

This history-length option overrides the global policy for all accounts named by the statement. For each, it sets the password history length to N passwords, to prohibit reusing any of the N most recently chosen passwords. The following statement prohibits reuse of any of the previous 6 passwords:

CREATE USER permits these password_option values for controlling reuse of previous passwords based on time elapsed:

PASSWORD REUSE INTERVAL DEFAULT

Sets all statements named by the account so that the global policy about time elapsed applies, to prohibit reuse of passwords newer than the number of days specified by the password_reuse_interval system variable.

PASSWORD REUSE INTERVAL N DAY

This time-elapsed option overrides the global policy for all accounts named by the statement. For each, it sets the password reuse interval to N days, to prohibit reuse of passwords newer than that many days. The following statement prohibits password reuse for 360 days:

CREATE USER permits these password_option values for controlling whether attempts to change an account password must specify the current password, as verification that the user attempting to make the change actually knows the current password:

PASSWORD REQUIRE CURRENT

This verification option overrides the global policy for all accounts named by the statement. For each, it requires that password changes specify the current password.

PASSWORD REQUIRE CURRENT OPTIONAL

This verification option overrides the global policy for all accounts named by the statement. For each, it does not require that password changes specify the current password. (The current password may but need not be given.)

PASSWORD REQUIRE CURRENT DEFAULT

Sets all statements named by the account so that the global policy about password verification applies, as specified by the password_require_current system variable.

As of MySQL 8.0.19, CREATE USER permits these password_option values for controlling failed-login tracking:

Whether to track account login attempts that specify an incorrect password. N must be a number from 0 to 32767. A value of 0 disables failed-login tracking. Values greater than 0 indicate how many consecutive password failures cause temporary account locking (if PASSWORD_LOCK_TIME is also nonzero).

How long to lock the account after too many consecutive login attempts provide an incorrect password. N must be a number from 0 to 32767, or UNBOUNDED . A value of 0 disables temporary account locking. Values greater than 0 indicate how long to lock the account in days. A value of UNBOUNDED causes the account locking duration to be unbounded; once locked, the account remains in a locked state until unlocked. For information about the conditions under which unlocking occurs, see Failed-Login Tracking and Temporary Account Locking.

For failed-login tracking and temporary locking to occur, an account’s FAILED_LOGIN_ATTEMPTS and PASSWORD_LOCK_TIME options both must be nonzero. The following statement creates an account that remains locked for two days after four consecutive password failures:

CREATE USER Account-Locking Options

MySQL supports account locking and unlocking using the ACCOUNT LOCK and ACCOUNT UNLOCK options, which specify the locking state for an account. For additional discussion, see Section 6.2.19, “Account Locking”.

If multiple account-locking options are specified, the last one takes precedence.

CREATE USER Binary Logging

CREATE USER is written to the binary log if it succeeds, but not if it fails; in that case, rollback occurs and no changes are made. A statement written to the binary log includes all named users. If the IF NOT EXISTS clause is given, this includes even users that already exist and were not created.

The statement written to the binary log specifies an authentication plugin for each user, determined as follows:

The plugin named in the original statement, if one was specified.

Otherwise, the default authentication plugin. In particular, if a user u1 already exists and uses a nondefault authentication plugin, the statement written to the binary log for CREATE USER IF NOT EXISTS u1 names the default authentication plugin. (If the statement written to the binary log must specify a nondefault authentication plugin for a user, include it in the original statement.)

If the server adds the default authentication plugin for any nonexisting users in the statement written to the binary log, it writes a warning to the error log naming those users.

If the original statement specifies the FAILED_LOGIN_ATTEMPTS or PASSWORD_LOCK_TIME option, the statement written to the binary log includes the option.

Инициализация DirectInput

Дата создания: 2009-07-05 15:34:49
Последний раз редактировалось: 2020-02-08 10:52:17

Меня всегда удивляло следующее: в большинстве книжек по DirectX рассказывается как создавать графику, а вот чтобы эта графика ожила — не рассказывается. Где взаимодействие с пользователем? Где экшн. Всегда считал что это есть не правильно. Вроде бы уже наложил на треугольник текстуру, напустил туману, а как теперь заставить объекты двигаться по мановению мышки или клавиатуры не знаешь. И сидишь как дурак.

Единственным правильным решением в данной ситации, будет изучение работы с клавиатурой и мышкой по ходу освоения Direct3D.

В WinAPI есть набор функций для работы с вводом с клавиатуры и мышки, но мы не будем ими пользоваться, так как для этого есть более подходящая штука — DirectInput.

DirectInput — это часть DirectX отвечающая за ввод: с клавиатуры, с мышки, с джойстика и других устройств.

Инициализация DirectInput

Для начала нужно добавить к проекту следующие библиотечные файлы: dinput8.lib, dxguid.lib. Заголовочный файл для DirectInput следующий: dinput.h.

Инициализация DirectInput включает следующие шаги:

  1. Получение интерфейса IDirectInput8.
  2. Создание устройства.
  3. Установка формата данных.
  4. Установка уровня взаимодействия с операционной системой.
  5. Получение доступа к устройству ввода.

После инициализации программа сможет принимать ввод от устройства.

Теперь по порядку:

1. Создание объекта DirectInput. Функция DirectInput8Create.

Прежде всего необходимо получить указатель на интерфейс IDirectInput8. Этот интерфейс является основным в DirectInput и c помощью него создаются устройства (клавиатура, мышь). Для создания объекта DirectInput в функцию DirectInput8Create нужно передать указатель на интерфейс IDirectInput8 (4-ый аргумент):

Как мы видим, функция DirectInput8Create сложнее аналогичной функции из Direct3D (Direct3DCreate9).

hinst
Экземпляр приложения.

dwVersion
Версия DirectInput. Всегда передавайте DIRECTINPUT_VERSION .

riidltf
Уникальный идентификатор устройства. Данный параметр относится к COM. Всегда передавайте IID_IDirectInput8 .

ppvOut
указатель на IDirectInput8. Функция DirectInput8Create вызывается именно для того, чтобы создать объект DirectInput.

pUnkOuter
Ещё одно поле связанное с COM. Заполняется при агрегации. Передавайте NULL.

2. Создание устройства

После создания объекта DirectInput, через него можно создать устройство (например, клавиатуру) — получить указатель на интерфейс IDirectInputDevice8. Получить IDIrectInputDevice8 можно через метод IDirectInput8::CreateDevice:

rguid
Данный параметр относится к COM. Здесь необходимо запомнить два значения: GUID_SysMouse — мышь, GUID_SysKeyboard — клавиатура.

lplpDirectInputDevice
Адрес переменной, которая получит указатель на интерфейс IDirectInputDevice8.

pUnkOUter
Такой же параметр как и в функции DirectInput8Create. Передавайте NULL.

Теперь у нас есть переменная, которая представляет устройство. Тип устройства зависит от того, какое значение вы передали первому аргументу метода CreateDevice. В ближайшее время мы будем пользоваться клавиатурой. Соответсвенно первый параметр должен был быть таким: GUID_SysKeyboard.

3. Установка формата данных

Теперь нужно задать формат данных, который будет получать устройство. Для этого есть метод IDirectInputDevice8::SetDataFormat:

Единственным аргументом данного метода является адрес структуры, которая описывает формат данных. DirectInput предоставляет уже заполненные структуры LPCDIDATAFORMAT: для клавиатуры — c_dfDIKeyboard, для мышки — c_dfDIMouse.

4. Установка уровня взаимодействия с ОС.

Уровень взаимодействия с операционной системой задаётся через метод IDirectInputDevice8::SetCooperativeLevel:

hWnd
Первый аргумент — описатель окна, у которого нужно забирать ввод.

dwFlags
Второй аргумент — набор флагов, определящий каким образом будет происходить взаимодействие с операционной системой. Нам нужно получать данные с устройства только когда окно активно. Этому условию отвечает значение: DISCL_FOREGROUND | DISCL_NONEXCLUSIVE.

5. Получение доступа к устройству ввода.

И последнее что нужно сделать прежде чем устройство будет способно получать ввод от пользователя во время программы — «приобрести» (acquire) устройство IDirectInputDevice8::Acquire. Этот метод позволяет получить доступ к устройству ввода.

С данным методом связан вот ещё какой момент. Когда пользователь переключается на другую программу, то доступ к устройству ввода теряется. Поэтому, когда пользователь возвращается в программу, необходимо снова вызвать данный метод.

При завершении программы, до уничтожения устройства методом Release, нужно вызвать метод IDirectInputDevice8::Unacquire, чтобы отменить доступ к устройству.

А теперь посмотрим как всё это работает (создаём устройство ввода с клавиатуры):

Теперь можно начинать ввод. Как? Скоро узнаем.

8. Creating Resources¶

To display a form, handle its submission or to create a new resource via API, you should use the createAction of your app.controller.book service.

Done! Now when you go to /books/new , the ResourceController will use the factory ( app.factory.book ) to create a new book instance. Then it will try to create an app_book form, and set the newly created book as its data.

8.1. Submitting the Form¶

You can use exactly the same route to handle the submit of the form and create the book.

On submit, the create action with method POST, will bind the request on the form, and if it is valid it will use the right manager to persist the resource. Then, by default it redirects to app_book_show to display the created book, but you can easily change that behavior — you’ll see this in further sections.

When validation fails, it will render the form just like previously with the error messages displayed.

8.2. Changing the Template¶

Just like for the show and index actions, you can customize the template per route.

8.3. Using Custom Form¶

You can also use custom form type on per route basis. Following Symfony3 conventions forms types are resolved by FQCN. Below you can see the usage for specifying a custom form.

8.4. Passing Custom Options to Form¶

What happens when you need pass some options to the form? Well, there’s a configuration for that!

Below you can see the usage for specifying custom options, in this case, validation_groups , but you can pass any option accepted by the form.

8.5. Using Custom Factory Method¶

By default, ResourceController will use the createNew method with no arguments to create a new instance of your object. However, this behavior can be modified. To use a different method of your factory, you can simply configure the factory option.

Additionally, if you want to provide your custom method with arguments from the request, you can do so by adding more parameters.

With this configuration, $factory->createNewWithAuthor($request->get(‘author’)) will be called to create new resource within the createAction .

8.6. Using Custom Factory Service¶

If you would like to use your own service to create the resource, then try the following configuration:

With this configuration, service with id “app.factory.custom_book_factory” will be called to create new resource within the createNewByAuthorId method and the author id from the url as argument.

8.7. Custom Redirect After Success¶

By default the controller will try to get the id of the newly created resource and redirect to the “show” route. You can easily change that behaviour. For example, to redirect to the index list after successfully creating a new resource — you can use the following configuration.

You can also perform more complex redirects, with parameters. For example:

In addition to the request parameters, you can access some of the newly created objects properties, using the resource. prefix.

With this configuration, the title parameter for route app_book_show will be obtained from your newly created book.

8.8. Custom Event Name¶

By default, there are two events dispatched during resource creation, one before adding it do database, the other after successful addition. The pattern is always the same — ..pre/post_create . However, you can customize the last part of the event, to provide your own action name.

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