Python django.core.serializers 模块，sort_dependencies() 实例源码

我们从Python开源项目中，提取了以下8个代码示例，用于说明如何使用django.core.serializers.sort_dependencies()。

项目：CodingDojo 作者：ComputerSocietyUNB | 项目源码 | 文件源码

def serialize_db_to_string(self):
        """
        Serializes all data in the database into a JSON string.
        Designed only for test runner usage; will not handle large
        amounts of data.
        """
        # Build list of all apps to serialize
        from django.db.migrations.loader import MigrationLoader
        loader = MigrationLoader(self.connection)
        app_list = []
        for app_config in apps.get_app_configs():
            if (
                app_config.models_module is not None and
                app_config.label in loader.migrated_apps and
                app_config.name not in settings.TEST_NON_SERIALIZED_APPS
            ):
                app_list.append((app_config, None))

        # Make a function to iteratively return every object
        def get_objects():
            for model in serializers.sort_dependencies(app_list):
                if (model._meta.can_migrate(self.connection) and
                        router.allow_migrate_model(self.connection.alias, model)):
                    queryset = model._default_manager.using(self.connection.alias).order_by(model._meta.pk.name)
                    for obj in queryset.iterator():
                        yield obj
        # Serialize to a string
        out = StringIO()
        serializers.serialize("json", get_objects(), indent=None, stream=out)
        return out.getvalue()

项目：trydjango18 作者：wei0104 | 项目源码 | 文件源码

def serialize_db_to_string(self):
        """
        Serializes all data in the database into a JSON string.
        Designed only for test runner usage; will not handle large
        amounts of data.
        """
        # Build list of all apps to serialize
        from django.db.migrations.loader import MigrationLoader
        loader = MigrationLoader(self.connection)
        app_list = []
        for app_config in apps.get_app_configs():
            if (
                app_config.models_module is not None and
                app_config.label in loader.migrated_apps and
                app_config.name not in settings.TEST_NON_SERIALIZED_APPS
            ):
                app_list.append((app_config, None))

        # Make a function to iteratively return every object
        def get_objects():
            for model in serializers.sort_dependencies(app_list):
                if (not model._meta.proxy and model._meta.managed and
                        router.allow_migrate_model(self.connection.alias, model)):
                    queryset = model._default_manager.using(self.connection.alias).order_by(model._meta.pk.name)
                    for obj in queryset.iterator():
                        yield obj
        # Serialize to a string
        out = StringIO()
        serializers.serialize("json", get_objects(), indent=None, stream=out)
        return out.getvalue()

项目：lifesoundtrack 作者：MTG | 项目源码 | 文件源码

def serialize_db_to_string(self):
        """
        Serializes all data in the database into a JSON string.
        Designed only for test runner usage; will not handle large
        amounts of data.
        """
        # Build list of all apps to serialize
        from django.db.migrations.loader import MigrationLoader
        loader = MigrationLoader(self.connection)
        app_list = []
        for app_config in apps.get_app_configs():
            if (
                app_config.models_module is not None and
                app_config.label in loader.migrated_apps and
                app_config.name not in settings.TEST_NON_SERIALIZED_APPS
            ):
                app_list.append((app_config, None))

        # Make a function to iteratively return every object
        def get_objects():
            for model in serializers.sort_dependencies(app_list):
                if (model._meta.can_migrate(self.connection) and
                        router.allow_migrate_model(self.connection.alias, model)):
                    queryset = model._default_manager.using(self.connection.alias).order_by(model._meta.pk.name)
                    for obj in queryset.iterator():
                        yield obj
        # Serialize to a string
        out = StringIO()
        serializers.serialize("json", get_objects(), indent=None, stream=out)
        return out.getvalue()

项目：liberator 作者：libscie | 项目源码 | 文件源码

def serialize_db_to_string(self):
        """
        Serializes all data in the database into a JSON string.
        Designed only for test runner usage; will not handle large
        amounts of data.
        """
        # Build list of all apps to serialize
        from django.db.migrations.loader import MigrationLoader
        loader = MigrationLoader(self.connection)
        app_list = []
        for app_config in apps.get_app_configs():
            if (
                app_config.models_module is not None and
                app_config.label in loader.migrated_apps and
                app_config.name not in settings.TEST_NON_SERIALIZED_APPS
            ):
                app_list.append((app_config, None))

        # Make a function to iteratively return every object
        def get_objects():
            for model in serializers.sort_dependencies(app_list):
                if (model._meta.can_migrate(self.connection) and
                        router.allow_migrate_model(self.connection.alias, model)):
                    queryset = model._default_manager.using(self.connection.alias).order_by(model._meta.pk.name)
                    for obj in queryset.iterator():
                        yield obj
        # Serialize to a string
        out = StringIO()
        serializers.serialize("json", get_objects(), indent=None, stream=out)
        return out.getvalue()

项目：djanoDoc 作者：JustinChavez | 项目源码 | 文件源码

def serialize_db_to_string(self):
        """
        Serializes all data in the database into a JSON string.
        Designed only for test runner usage; will not handle large
        amounts of data.
        """
        # Build list of all apps to serialize
        from django.db.migrations.loader import MigrationLoader
        loader = MigrationLoader(self.connection)
        app_list = []
        for app_config in apps.get_app_configs():
            if (
                app_config.models_module is not None and
                app_config.label in loader.migrated_apps and
                app_config.name not in settings.TEST_NON_SERIALIZED_APPS
            ):
                app_list.append((app_config, None))

        # Make a function to iteratively return every object
        def get_objects():
            for model in serializers.sort_dependencies(app_list):
                if (model._meta.can_migrate(self.connection) and
                        router.allow_migrate_model(self.connection.alias, model)):
                    queryset = model._default_manager.using(self.connection.alias).order_by(model._meta.pk.name)
                    for obj in queryset.iterator():
                        yield obj
        # Serialize to a string
        out = StringIO()
        serializers.serialize("json", get_objects(), indent=None, stream=out)
        return out.getvalue()

项目：django-next-train 作者：bitpixdigital | 项目源码 | 文件源码

def serialize_db_to_string(self):
        """
        Serializes all data in the database into a JSON string.
        Designed only for test runner usage; will not handle large
        amounts of data.
        """
        # Build list of all apps to serialize
        from django.db.migrations.loader import MigrationLoader
        loader = MigrationLoader(self.connection)
        app_list = []
        for app_config in apps.get_app_configs():
            if (
                app_config.models_module is not None and
                app_config.label in loader.migrated_apps and
                app_config.name not in settings.TEST_NON_SERIALIZED_APPS
            ):
                app_list.append((app_config, None))

        # Make a function to iteratively return every object
        def get_objects():
            for model in serializers.sort_dependencies(app_list):
                if (model._meta.can_migrate(self.connection) and
                        router.allow_migrate_model(self.connection.alias, model)):
                    queryset = model._default_manager.using(self.connection.alias).order_by(model._meta.pk.name)
                    for obj in queryset.iterator():
                        yield obj
        # Serialize to a string
        out = StringIO()
        serializers.serialize("json", get_objects(), indent=None, stream=out)
        return out.getvalue()

项目：LatinSounds_AppEnviaMail 作者：G3ek-aR | 项目源码 | 文件源码

def serialize_db_to_string(self):
        """
        Serializes all data in the database into a JSON string.
        Designed only for test runner usage; will not handle large
        amounts of data.
        """
        # Build list of all apps to serialize
        from django.db.migrations.loader import MigrationLoader
        loader = MigrationLoader(self.connection)
        app_list = []
        for app_config in apps.get_app_configs():
            if (
                app_config.models_module is not None and
                app_config.label in loader.migrated_apps and
                app_config.name not in settings.TEST_NON_SERIALIZED_APPS
            ):
                app_list.append((app_config, None))

        # Make a function to iteratively return every object
        def get_objects():
            for model in serializers.sort_dependencies(app_list):
                if (model._meta.can_migrate(self.connection) and
                        router.allow_migrate_model(self.connection.alias, model)):
                    queryset = model._default_manager.using(self.connection.alias).order_by(model._meta.pk.name)
                    for obj in queryset.iterator():
                        yield obj
        # Serialize to a string
        out = StringIO()
        serializers.serialize("json", get_objects(), indent=None, stream=out)
        return out.getvalue()

项目：django-wechat-api 作者：crazy-canux | 项目源码 | 文件源码

def serialize_db_to_string(self):
        """
        Serializes all data in the database into a JSON string.
        Designed only for test runner usage; will not handle large
        amounts of data.
        """
        # Build list of all apps to serialize
        from django.db.migrations.loader import MigrationLoader
        loader = MigrationLoader(self.connection)
        app_list = []
        for app_config in apps.get_app_configs():
            if (
                app_config.models_module is not None and
                app_config.label in loader.migrated_apps and
                app_config.name not in settings.TEST_NON_SERIALIZED_APPS
            ):
                app_list.append((app_config, None))

        # Make a function to iteratively return every object
        def get_objects():
            for model in serializers.sort_dependencies(app_list):
                if (not model._meta.proxy and model._meta.managed and
                        router.allow_migrate_model(self.connection.alias, model)):
                    queryset = model._default_manager.using(self.connection.alias).order_by(model._meta.pk.name)
                    for obj in queryset.iterator():
                        yield obj
        # Serialize to a string
        out = StringIO()
        serializers.serialize("json", get_objects(), indent=None, stream=out)
        return out.getvalue()