See also the README file.
The following Python and JavaScript libraries (python classes, unless otherwise specified) are being used:
IMPORTANT : for versions 4.x of the Neo4j database High-level class to interface with the Neo4j graph database from Python. Mostly tested on versions 4.3 and 4.4 of Neo4j Community version, but should work with other 4.x versions, too. NOT tested on any other major version of Neo4j; in particular, NOT tested with version 5 Conceptually, there are two parts to NeoAccess: 1) A thin wrapper around the Neo4j python connectivity library "Neo4j Python Driver" that is documented at: https://neo4j.com/docs/api/python-driver/current/api.html 2) A layer above, providing higher-level functionality for common database operations, such as lookup, creation, deletion, modification, import, indices, etc.
NeoAccess
differs from all other Brain Annex libraries in two important ways:pip install neoaccess
- which will take care of dependencies -
and start using it with a simple:
from neoaccess import NeoAccess
A layer above the class NeoAccess (or, in principle, another library providing a compatible interface) to provide an optional schema to the underlying database. Schemas may be used to either: 1) acknowledge the existence of typical patterns in the data OR 2) to enforce a mold for the data to conform to MOTIVATION Relational databases are suffocatingly strict for the real world. Neo4j by itself may be too anarchic. A schema (whether "lenient/lax/loose" or "strict") in conjunction with Neo4j may be the needed compromise. GOAL To infuse into Neo4j functionality that some people turn to RDF for. However, carving out a new path rather than attempting to emulate RDF!Background Information: Using Schema in Graph Databases such as Neo4j
For general database-interaction operations. Used by the UI for Page Generation, as well as by the API to produce data for the endpoints. This class does NOT get instantiated.Source code
Used by the UI for Page Generation. This class does NOT get instantiated.Source code
Each registered plugin may opt to provide python methods for its specific needs.Source code
Setup, routing and endpoints for all the web pages served by this module. Note that this class does not directly interact with the Neo4j database. SECTIONS: - UTILITY methods - For DEBUGGING - ROUTING: * SCHEMA-related (reading) * SCHEMA-related (creating) * CONTENT-ITEM MANAGEMENT VIEWING CONTENT ITEMS MODIFYING EXISTING CONTENT ITEMS * CATEGORY-RELATED (incl. adding new Content Items) POSITIONING WITHIN CATEGORIES * FILTERS * IMPORT-EXPORT (upload/download) * EXPERIMENTALSource code
STATIC class to communicate with the server using the fetch() API. Some methods are general; others implement one of the protocols detailed further down.Source code
Setup and routing for all the Flask-based web pages served by this moduleSource code
HTML Flask templates for the various pages of the Brain-Annex provided site (including administrative pages and category-viewer pages)Source code
For the various site pagesSource code
It starts up a server for web User Interface and an API Run this file, and then set the browser to http://localhost:5000/some_url (the actual port number is configurable; the URL's are specified in the various modules) IMPORTANT: first change the config.ini file as needed Note: this main program may also be started from the CLI with the "flask run" commandSource code
INITIALIZATION of various static classesSource code
Router/generator for navigation pages: CSS static pages, and HTML pages that get included into other Flask files Setup, and routing, for all the web pagesSource code
Definition of the Navigation Bar entries for the overall site navigation (both Brain Annex and, possibly, co-hosted sites)Source code
Library for Category-related operations. An entity to which a variety of nodes (e.g. representing records or media) is attached, with a positional attribute. Categories also have "subcategory" relationships with other categories. Contains the following groups of methods: 1. LOOKUP 2. UPDATE 3. POSITIONING WITHIN CATEGORIESSource code
A generalization of Categories. An entity to which a variety of nodes (e.g. representing records or media) is attached, with a positional attribute.Source code
Indexing-related methods. In early development stageSource code
Utility class for managing images, especially in the context of uploads.Source code
Helper library for the management of media filesSource code
A largely experimental library to deal with management and visualization of data nodesSource code
Helper class to manage file uploads with Flask 1.1 (using Werkzeug 2.1)Source code
General utilities for comparisons and pandasSource code