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Simple entity relation (ER) diagrams generation

Project description

ERAlchemy is integrated with SQLAlchemy and is able to generate the ER digram from an existing database.

Example

Example for a graph

Example for a graph

Quick Start

Install

To install ERAlchemy, just do

pip install eralchemy

ERAlchemy requires GraphViz to generate the graphs.

Use from python

from eralchemy import draw_er
## Draw from SQLAlchemy base
draw_er(Base, 'erd_from_sqlalchemy.png')

## Draw from database
draw_er("sqlite:///relative/path/to/db.db", 'erd_from_sqlite.png')

Use from the command line

$ eralchemy -i sqlite:///relative/path/to/db.db -o erd_from_sqlite.png

Architecture

Architecture schema

Architecture schema

Thanks to it’s modular architecture, it can be connected to other ORMs/ODMs/OGMs/O*Ms.

Notes

ERAlchemy was inspired by erd.

Released under an Apache License 2.0

Creator: Alexis Benoist

Project details


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