Files
galaxy/scripts/galaxy_schemadisp.py
T

51 lines
1.7 KiB
Python

import os
import sys
from db_shell import * # noqa
from sqlalchemy import MetaData
from sqlalchemy.orm import class_mapper
try:
from sqlalchemy_schemadisplay import create_schema_graph, create_uml_graph
except ImportError:
print("please install sqlalchemy_schemadisplay to use this script (pip install sqlalchemy_schemadisplay)")
raise
gxy_root = os.path.abspath(os.path.join(os.path.dirname(__file__), os.pardir))
sys.path.insert(1, os.path.abspath(os.path.join(gxy_root, 'lib')))
from galaxy import model
if __name__ == "__main__":
gxy_root = os.path.abspath(os.path.join(os.path.dirname(__file__), os.pardir))
sqlitedb = os.path.join(gxy_root, 'database/universe.sqlite')
# Try to build a representation of what's in the sqlite database
if os.path.exists(sqlitedb):
graph = create_schema_graph(metadata=MetaData('sqlite:///' + sqlitedb),
show_datatypes=False,
show_indexes=False,
rankdir='LR',
concentrate=False)
print(f"Writing galaxy_universe.png, built from {sqlitedb}")
graph.write_png('galaxy_universe.png')
else:
print(f"No sqlitedb available at {sqlitedb}, skipping rendering")
# Build UML graph from loaded mapper
mappers = []
for attr in dir(model):
if attr[0] == '_':
continue
try:
cls = getattr(model, attr)
mappers.append(class_mapper(cls))
except Exception:
pass
graph = create_uml_graph(
mappers,
show_operations=False,
)
print("Writing galaxy_uml.png")
graph.write_png('galaxy_uml.png') # write out the file