Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! Join TestMu Conference

How to use create_relation_from_node method in dbt-osmosis

Best Python code snippet using dbt-osmosis_python

osmosis.py

Source:osmosis.py

...454        return self.adapter.get_relation(database, schema, name)455    def create_relation(self, database: str, schema: str, name: str) -> BaseRelation:456        """Wrapper for `adapter.Relation.create`"""457        return self.adapter.Relation.create(database, schema, name)458    def create_relation_from_node(self, node: ManifestNode) -> BaseRelation:459        """Wrapper for `adapter.Relation.create_from`"""460        return self.adapter.Relation.create_from(self.config, node)461    def get_columns_in_relation(self, node: ManifestNode) -> List[str]:462        """Wrapper for `adapter.get_columns_in_relation`"""463        return self.adapter.get_columns_in_relation(self.create_relation_from_node(node))464    @lru_cache(maxsize=5)465    def get_columns(self, node: ManifestNode) -> List[ColumnInfo]:466        """Get a list of columns from a compiled node"""467        columns = []468        try:469            columns.extend(470                [c.name for c in self.get_columns_in_relation(self.create_relation_from_node(node))]471            )472        except CompilationException:473            original_sql = str(getattr(node, RAW_CODE))474            # TODO: account for `TOP` syntax475            setattr(node, RAW_CODE, f"select * from ({original_sql}) limit 0")476            result = self.execute_node(node)477            setattr(node, RAW_CODE, original_sql)478            delattr(node, COMPILED_CODE)479            columns.extend(result.table.column_names)480        return columns481    def get_or_create_relation(482        self, database: str, schema: str, name: str483    ) -> Tuple[BaseRelation, bool]:484        """Get relation or create if not exists. Returns tuple of relation and485        boolean result of whether it existed ie: (relation, did_exist)"""486        ref = self.get_relation(database, schema, name)487        return (ref, True) if ref else (self.create_relation(database, schema, name), False)488    def create_schema(self, node: ManifestNode):489        """Create a schema in the database"""490        return self.execute_macro(491            "create_schema",492            kwargs={"relation": self.create_relation_from_node(node)},493        )494    def materialize(495        self, node: ManifestNode, temporary: bool = True496    ) -> Tuple[AdapterResponse, None]:497        """Materialize a table in the database"""498        return self.adapter_execute(499            # Returns CTAS string so send to adapter.execute500            self.execute_macro(501                "create_table_as",502                kwargs={503                    "sql": getattr(node, COMPILED_CODE),504                    "relation": self.create_relation_from_node(node),505                    "temporary": temporary,506                },507            ),508            auto_begin=True,509        )510class DbtProjectContainer:511    """This class manages multiple DbtProjects which each correspond512    to a single dbt project on disk. This is mostly for osmosis server use"""513    def __init__(self):514        self._projects: Dict[str, DbtProject] = OrderedDict()515        self._default_project: Optional[str] = None516    def get_project(self, project_name: str) -> Optional[DbtProject]:517        """Primary interface to get a project and execute code"""518        return self._projects.get(project_name)...

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.