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SqlAlchemy schema display script

Project Description

About

Simple package for describing SQLAlchemy schema and display raw database tables. Relation detecting by ForeignKey columns. Supports mapped class inherit. BSD licensed.

Output formats:

Requirements

  • python >= 2.5
  • SQLAlchemy >= 0.5

Install

pip install sadisplay

From bitbucket:

pip install http://bitbucket.org/estin/sadisplay/get/tip.tar.gz
# or
easy_install http://bitbucket.org/estin/sadisplay/get/tip.tar.gz

Usage

Write simple script in your project environment:

import codecs
import sadisplay
from yourapp import model

desc = sadisplay.describe(
    [getattr(model, attr) for attr in dir(model)],
    show_methods=True,
    show_properties=True,
    show_indexes=True,
)
with codecs.open('schema.plantuml', 'w', encoding='utf-8') as f:
    f.write(sadisplay.plantuml(desc))
with codecs.open('schema.dot', 'w', encoding='utf-8') as f:
    f.write(sadisplay.dot(desc))

# Or only part of schema
desc = sadisplay.describe([model.User, model.Group, model.Persmission])
with codecs.open('auth.plantuml', 'w', encoding='utf-8') as f:
    f.write(sadisplay.plantuml(desc))
with codecs.open('auth.dot', 'w', encoding='utf-8') as f:
    f..write(sadisplay.dot(desc))

Render PlantUML class diagram:

$ java -jar plantuml.jar schema.plantuml

# or for svg format
$ java -jar plantuml.jar -Tsvg schema.plantuml

Render graph by graphviz:

$ dot -Tpng schema.dot > schema.png

Also you can display you sql database tables by reflecting feature:

$ sadisplay -u <URL connection string to db> -r dot > schema.dot
$ dot -Tpng schema.dot > schema.png

Release history Release notifications

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0.4.9

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0.2dev

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Filename, size & hash SHA256 hash help File type Python version Upload date
sadisplay-0.4.9-py2.py3-none-any.whl (9.6 kB) Copy SHA256 hash SHA256 Wheel 3.6 Mar 26, 2018
sadisplay-0.4.9.tar.gz (9.5 kB) Copy SHA256 hash SHA256 Source None Mar 26, 2018

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