multiple-instances

问题 I have a pretty simple N:M relationship in SqlAlchemy 0.6.6. I have a class "attractLoop" that can contain a bunch of Media (Images or Videos). I need to have a list in which the same Media (let's say image) can be appended twice. The relationship is as follows: The media is a base class with most of the attributes Images and Videos will share. class BaseMedia(BaseClass.BaseClass, declarativeBase): __tablename__ = "base_media" _polymorphicIdentity = Column("polymorphic_identity", String(20),

来源： https://stackoverflow.com/questions/60094284/c-sharp-mongodb-update-upsert-listobject-to-collection

来源： https://stackoverflow.com/questions/60094284/c-sharp-mongodb-update-upsert-listobject-to-collection

来源： https://stackoverflow.com/questions/60094284/c-sharp-mongodb-update-upsert-listobject-to-collection

来源： https://stackoverflow.com/questions/60094284/c-sharp-mongodb-update-upsert-listobject-to-collection

来源： https://stackoverflow.com/questions/60094284/c-sharp-mongodb-update-upsert-listobject-to-collection

问题 Refer to this question, it is device-dependent that whether an APP can use multiple MediaCodec instances as video encoder or not. Is there a recommended way to detect the capability of this on devices? For example, if there is an Android API to query the support of multiple video encoder or its max count, or this can be checked when creating/initializing the MediaCodec instance before the encoding process? I want to detect the device capability in my APP without the need of encoding bad

问题 I'm having a problem with pyqt5. I have this piece of code to instantiate my class and open my window without closing after the show method (because gc). def user_crud(): global crud crud = TCrudUsuario() crud.show() it works well, but on the TCrudUsuario class, I have some buttons that connects to a method with arguments, so I'm using a lambda (tried with partial, but the same problem happens), something like this: self.btnNovo.clicked.connect(lambda: self.manage_user(1)) the problem is: if

问题 I'm having a problem with pyqt5. I have this piece of code to instantiate my class and open my window without closing after the show method (because gc). def user_crud(): global crud crud = TCrudUsuario() crud.show() it works well, but on the TCrudUsuario class, I have some buttons that connects to a method with arguments, so I'm using a lambda (tried with partial, but the same problem happens), something like this: self.btnNovo.clicked.connect(lambda: self.manage_user(1)) the problem is: if

问题 I'm having a problem with pyqt5. I have this piece of code to instantiate my class and open my window without closing after the show method (because gc). def user_crud(): global crud crud = TCrudUsuario() crud.show() it works well, but on the TCrudUsuario class, I have some buttons that connects to a method with arguments, so I'm using a lambda (tried with partial, but the same problem happens), something like this: self.btnNovo.clicked.connect(lambda: self.manage_user(1)) the problem is: if