Repository Module

The Repository Module is a crucial component of the Noctis project, primarily focused on interactions with Neo4j databases. This module provides a comprehensive set of tools and functionalities for managing, querying, and manipulating graph data within a Neo4j environment.

Neo4j Queries

Abstract Classes

AbstractQuery	Abstract class representing a query
Neo4jQueryRegistry()	A registry for managing and accessing Neo4j query classes.

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Constraints

CreateUniquenessConstraints	Query to constraint uniqueness of Molecule and ChemicalEquation nodes
DropUniquenessConstraints	Query to remove the uniqueness constraint for Molecule and ChemicalEquation nodes
ShowUniquenessConstraints	Query to show the uniqueness constraints

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Retrieve Graph Queries

GetNode	Query to retrieve a node based on its uid or other properties
GetTree	Query to retrieve a tree for the given Molecule root
GetRoutes	Query to retrieve the list of routes for a given Molecule root
GetPathsThroughIntermediates	Query to get paths which start with start node and go through provided intermediate nodes

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Modify Graph Queries

AddNodesAndRelationships	Query to add nodes and relationships from a python object.
LoadNodesFromCsv	Query to load nodes from a csv file.
LoadRelationshipsFromCsv	Query to load relationships from CSV file
ImportDbFromCsv	Query to import nodes and relationships from CSV files
DeleteAllNodes	Query to delete ChemicalEquation nodes based on the number of a particular relationship type

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Retrieve Stats Query

GetGDBSchema

Query to delete ChemicalEquation nodes based on the number of a particular relationship type

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Custom Query

CustomQuery

Custom query class for executing queries from YAML files

Neo4j Repository

Neo4jRepository([uri, username, password, ...])

Repository class for interacting with a Neo4j database using defined query strategies.

Neo4j Functions

_convert_datacontainer_to_query(data_container)	To convert a DataContainer into a query string
_convert_record_to_query_neo4j(record)	To convert a GraphRecord into a query string
_create_node_queries(nodes)	To create node queries
_create_relationship_queries(relationships)	To create relationship query
_generate_properties_assignment(properties)	To generate properties assignment
_get_dict_keys_from_csv(csv_file_path)
_create_neo4j_import_path(directory, file_name)	Combines the directory and file name into an absolute file path and converts it into a file URI suitable for use in a Cypher LOAD CSV command.
_generate_files_string(folder_path, prefix, ...)	Generates a string of file descriptors for nodes or relationships.
_generate_nodes_files_string(folder_path, ...)	Generates a string of file descriptors for nodes.
_generate_relationships_files_string(...)	Generates a string of file descriptors for relationships.