mirror of
https://gitlab2.federez.net/re2o/re2o
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Del trucs inutiles
This commit is contained in:
Gabriel Detraz
chirac
parent
80b247b3e5
commit
1f2a3364b3
2 changed files with 0 additions and 633 deletions
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@ -1,228 +0,0 @@
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# -*- coding: utf-8 -*-
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import sys
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import json
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import six
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from django.conf import settings
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from django.core.management.base import BaseCommand, CommandError
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from topologie.management.modelviz import ModelGraph, generate_dot
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from django_extensions.management.utils import signalcommand
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try:
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import pygraphviz
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HAS_PYGRAPHVIZ = True
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except ImportError:
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HAS_PYGRAPHVIZ = False
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try:
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try:
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import pydotplus as pydot
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except ImportError:
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import pydot
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HAS_PYDOT = True
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except ImportError:
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HAS_PYDOT = False
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class Command(BaseCommand):
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help = "Creates a GraphViz dot file for the specified app names. You can pass multiple app names and they will all be combined into a single model. Output is usually directed to a dot file."
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can_import_settings = True
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def __init__(self, *args, **kwargs):
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"""Allow defaults for arguments to be set in settings.GRAPH_MODELS.
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Each argument in self.arguments is a dict where the key is the
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space-separated args and the value is our kwarg dict.
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The default from settings is keyed as the long arg name with '--'
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removed and any '-' replaced by '_'.
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"""
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self.arguments = {
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'--pygraphviz': {
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'action': 'store_true', 'dest': 'pygraphviz',
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'help': 'Use PyGraphViz to generate the image.'},
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'--pydot': {'action': 'store_true', 'dest': 'pydot',
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'help': 'Use PyDot(Plus) to generate the image.'},
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'--disable-fields -d': {
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'action': 'store_true', 'dest': 'disable_fields',
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'help': 'Do not show the class member fields'},
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'--group-models -g': {
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'action': 'store_true', 'dest': 'group_models',
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'help': 'Group models together respective to their '
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'application'},
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'--all-applications -a': {
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'action': 'store_true', 'dest': 'all_applications',
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'help': 'Automatically include all applications from '
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'INSTALLED_APPS'},
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'--output -o': {
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'action': 'store', 'dest': 'outputfile',
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'help': 'Render output file. Type of output dependend on file '
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'extensions. Use png or jpg to render graph to image.'},
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'--layout -l': {
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'action': 'store', 'dest': 'layout', 'default': 'dot',
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'help': 'Layout to be used by GraphViz for visualization. '
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'Layouts: circo dot fdp neato nop nop1 nop2 twopi'},
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'--verbose-names -n': {
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'action': 'store_true', 'dest': 'verbose_names',
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'help': 'Use verbose_name of models and fields'},
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'--language -L': {
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'action': 'store', 'dest': 'language',
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'help': 'Specify language used for verbose_name localization'},
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'--exclude-columns -x': {
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'action': 'store', 'dest': 'exclude_columns',
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'help': 'Exclude specific column(s) from the graph. '
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'Can also load exclude list from file.'},
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'--exclude-models -X': {
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'action': 'store', 'dest': 'exclude_models',
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'help': 'Exclude specific model(s) from the graph. Can also '
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'load exclude list from file. Wildcards (*) are allowed.'},
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'--include-models -I': {
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'action': 'store', 'dest': 'include_models',
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'help': 'Restrict the graph to specified models. Wildcards '
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'(*) are allowed.'},
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'--inheritance -e': {
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'action': 'store_true', 'dest': 'inheritance', 'default': True,
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'help': 'Include inheritance arrows (default)'},
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'--no-inheritance -E': {
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'action': 'store_false', 'dest': 'inheritance',
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'help': 'Do not include inheritance arrows'},
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'--hide-relations-from-fields -R': {
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'action': 'store_false', 'dest': 'relations_as_fields',
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'default': True,
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'help': 'Do not show relations as fields in the graph.'},
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'--disable-sort-fields -S': {
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'action': 'store_false', 'dest': 'sort_fields',
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'default': True, 'help': 'Do not sort fields'},
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'--json': {'action': 'store_true', 'dest': 'json',
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'help': 'Output graph data as JSON'}
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}
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defaults = getattr(settings, 'GRAPH_MODELS', None)
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if defaults:
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for argument in self.arguments:
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arg_split = argument.split(' ')
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setting_opt = arg_split[0].lstrip('-').replace('-', '_')
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if setting_opt in defaults:
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self.arguments[argument]['default'] = defaults[setting_opt]
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super(Command, self).__init__(*args, **kwargs)
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def add_arguments(self, parser):
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"""Unpack self.arguments for parser.add_arguments."""
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parser.add_argument('app_label', nargs='*')
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for argument in self.arguments:
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parser.add_argument(*argument.split(' '),
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**self.arguments[argument])
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@signalcommand
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def handle(self, *args, **options):
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args = options['app_label']
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if len(args) < 1 and not options['all_applications']:
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raise CommandError("need one or more arguments for appname")
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use_pygraphviz = options.get('pygraphviz', False)
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use_pydot = options.get('pydot', False)
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use_json = options.get('json', False)
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if use_json and (use_pydot or use_pygraphviz):
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raise CommandError("Cannot specify --json with --pydot or --pygraphviz")
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cli_options = ' '.join(sys.argv[2:])
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graph_models = ModelGraph(args, cli_options=cli_options, **options)
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graph_models.generate_graph_data()
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graph_data = graph_models.get_graph_data(as_json=use_json)
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if use_json:
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self.render_output_json(graph_data, **options)
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return
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dotdata = generate_dot(graph_data)
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if not six.PY3:
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dotdata = dotdata.encode('utf-8')
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if options['outputfile']:
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if not use_pygraphviz and not use_pydot:
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if HAS_PYGRAPHVIZ:
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use_pygraphviz = True
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elif HAS_PYDOT:
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use_pydot = True
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if use_pygraphviz:
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self.render_output_pygraphviz(dotdata, **options)
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elif use_pydot:
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self.render_output_pydot(dotdata, **options)
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else:
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raise CommandError("Neither pygraphviz nor pydotplus could be found to generate the image")
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else:
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self.print_output(dotdata)
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def print_output(self, dotdata):
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if six.PY3 and isinstance(dotdata, six.binary_type):
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dotdata = dotdata.decode()
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print(dotdata)
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def render_output_json(self, graph_data, **kwargs):
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output_file = kwargs.get('outputfile')
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if output_file:
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with open(output_file, 'wt') as json_output_f:
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json.dump(graph_data, json_output_f)
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else:
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print(json.dumps(graph_data))
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def render_output_pygraphviz(self, dotdata, **kwargs):
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"""Renders the image using pygraphviz"""
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if not HAS_PYGRAPHVIZ:
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raise CommandError("You need to install pygraphviz python module")
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version = pygraphviz.__version__.rstrip("-svn")
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try:
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if tuple(int(v) for v in version.split('.')) < (0, 36):
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# HACK around old/broken AGraph before version 0.36 (ubuntu ships with this old version)
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import tempfile
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tmpfile = tempfile.NamedTemporaryFile()
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tmpfile.write(dotdata)
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tmpfile.seek(0)
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dotdata = tmpfile.name
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except ValueError:
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pass
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graph = pygraphviz.AGraph(dotdata)
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graph.layout(prog=kwargs['layout'])
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graph.draw(kwargs['outputfile'])
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def render_output_pydot(self, dotdata, **kwargs):
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"""Renders the image using pydot"""
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if not HAS_PYDOT:
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raise CommandError("You need to install pydot python module")
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graph = pydot.graph_from_dot_data(dotdata)
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if not graph:
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raise CommandError("pydot returned an error")
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if isinstance(graph, (list, tuple)):
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if len(graph) > 1:
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sys.stderr.write("Found more then one graph, rendering only the first one.\n")
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graph = graph[0]
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output_file = kwargs['outputfile']
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formats = ['bmp', 'canon', 'cmap', 'cmapx', 'cmapx_np', 'dot', 'dia', 'emf',
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'em', 'fplus', 'eps', 'fig', 'gd', 'gd2', 'gif', 'gv', 'imap',
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'imap_np', 'ismap', 'jpe', 'jpeg', 'jpg', 'metafile', 'pdf',
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'pic', 'plain', 'plain-ext', 'png', 'pov', 'ps', 'ps2', 'svg',
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'svgz', 'tif', 'tiff', 'tk', 'vml', 'vmlz', 'vrml', 'wbmp', 'xdot']
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ext = output_file[output_file.rfind('.') + 1:]
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format = ext if ext in formats else 'raw'
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graph.write(output_file, format=format)
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# -*- coding: utf-8 -*-
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"""
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modelviz.py - DOT file generator for Django Models
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Based on:
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Django model to DOT (Graphviz) converter
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by Antonio Cavedoni <antonio@cavedoni.org>
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Adapted to be used with django-extensions
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"""
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import datetime
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import os
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import re
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import six
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from django.apps import apps
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from django.db.models.fields.related import (
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ForeignKey, ManyToManyField, OneToOneField, RelatedField,
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)
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from django.contrib.contenttypes.fields import GenericRelation
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from django.template import Context, Template, loader
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from django.utils.encoding import force_bytes, force_str
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from django.utils.safestring import mark_safe
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from django.utils.translation import activate as activate_language
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__version__ = "1.1"
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__license__ = "Python"
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__author__ = "Bas van Oostveen <v.oostveen@gmail.com>",
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__contributors__ = [
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"Antonio Cavedoni <http://cavedoni.com/>"
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"Stefano J. Attardi <http://attardi.org/>",
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"limodou <http://www.donews.net/limodou/>",
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"Carlo C8E Miron",
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"Andre Campos <cahenan@gmail.com>",
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"Justin Findlay <jfindlay@gmail.com>",
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"Alexander Houben <alexander@houben.ch>",
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"Joern Hees <gitdev@joernhees.de>",
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"Kevin Cherepski <cherepski@gmail.com>",
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"Jose Tomas Tocino <theom3ga@gmail.com>",
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"Adam Dobrawy <naczelnik@jawnosc.tk>",
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"Mikkel Munch Mortensen <https://www.detfalskested.dk/>",
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"Andrzej Bistram <andrzej.bistram@gmail.com>",
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]
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def parse_file_or_list(arg):
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if not arg:
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return []
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if isinstance(arg, (list, tuple, set)):
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return arg
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if ',' not in arg and os.path.isfile(arg):
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return [e.strip() for e in open(arg).readlines()]
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return [e.strip() for e in arg.split(',')]
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class ModelGraph(object):
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def __init__(self, app_labels, **kwargs):
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self.graphs = []
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self.cli_options = kwargs.get('cli_options', None)
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self.disable_fields = kwargs.get('disable_fields', False)
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self.include_models = parse_file_or_list(
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kwargs.get('include_models', "")
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)
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self.all_applications = kwargs.get('all_applications', False)
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self.use_subgraph = kwargs.get('group_models', False)
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self.verbose_names = kwargs.get('verbose_names', False)
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self.inheritance = kwargs.get('inheritance', True)
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self.relations_as_fields = kwargs.get("relations_as_fields", True)
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self.sort_fields = kwargs.get("sort_fields", True)
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self.language = kwargs.get('language', None)
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if self.language is not None:
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activate_language(self.language)
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self.exclude_columns = parse_file_or_list(
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kwargs.get('exclude_columns', "")
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)
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self.exclude_models = parse_file_or_list(
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kwargs.get('exclude_models', "")
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)
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if self.all_applications:
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self.app_labels = [app.label for app in apps.get_app_configs()]
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else:
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self.app_labels = app_labels
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def generate_graph_data(self):
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self.process_apps()
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nodes = []
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for graph in self.graphs:
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nodes.extend([e['name'] for e in graph['models']])
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for graph in self.graphs:
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for model in graph['models']:
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for relation in model['relations']:
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if relation is not None:
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if relation['target'] in nodes:
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relation['needs_node'] = False
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def get_graph_data(self, as_json=False):
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now = datetime.datetime.now()
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graph_data = {
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'created_at': now.strftime("%Y-%m-%d %H:%M"),
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'cli_options': self.cli_options,
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'disable_fields': self.disable_fields,
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'use_subgraph': self.use_subgraph,
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}
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if as_json:
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graph_data['graphs'] = [context.flatten() for context in self.graphs]
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else:
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graph_data['graphs'] = self.graphs
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return graph_data
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def add_attributes(self, field, abstract_fields):
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if self.verbose_names and field.verbose_name:
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label = force_bytes(field.verbose_name)
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if label.islower():
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label = label.capitalize()
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else:
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label = field.name
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t = type(field).__name__
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if isinstance(field, (OneToOneField, ForeignKey)):
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remote_field = field.remote_field if hasattr(field, 'remote_field') else field.rel # Remove me after Django 1.8 is unsupported
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t += " ({0})".format(remote_field.field_name)
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# TODO: ManyToManyField, GenericRelation
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return {
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'name': field.name,
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'label': label,
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'type': t,
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'blank': field.blank,
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'abstract': field in abstract_fields,
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'relation': isinstance(field, RelatedField),
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'primary_key': field.primary_key,
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}
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def add_relation(self, field, model, extras=""):
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if self.verbose_names and field.verbose_name:
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label = force_bytes(field.verbose_name)
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if label.islower():
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label = label.capitalize()
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else:
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label = field.name
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# show related field name
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if hasattr(field, 'related_query_name'):
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related_query_name = field.related_query_name()
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if self.verbose_names and related_query_name.islower():
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related_query_name = related_query_name.replace('_', ' ').capitalize()
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label = '{} ({})'.format(label, force_str(related_query_name))
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# handle self-relationships and lazy-relationships
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remote_field = field.remote_field if hasattr(field, 'remote_field') else field.rel # Remove me after Django 1.8 is unsupported
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remote_field_model = remote_field.model if hasattr(remote_field, 'model') else remote_field.to # Remove me after Django 1.8 is unsupported
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if isinstance(remote_field_model, six.string_types):
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if remote_field_model == 'self':
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target_model = field.model
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else:
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if '.' in remote_field_model:
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app_label, model_name = remote_field_model.split('.', 1)
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else:
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app_label = field.model._meta.app_label
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model_name = remote_field_model
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target_model = apps.get_model(app_label, model_name)
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else:
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target_model = remote_field_model
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_rel = self.get_relation_context(target_model, field, label, extras)
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if _rel not in model['relations'] and self.use_model(_rel['target']):
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return _rel
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def get_abstract_models(self, appmodels):
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abstract_models = []
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for appmodel in appmodels:
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abstract_models += [abstract_model for abstract_model in
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appmodel.__bases__ if
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hasattr(abstract_model, '_meta') and
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abstract_model._meta.abstract]
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abstract_models = list(set(abstract_models)) # remove duplicates
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return abstract_models
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def get_app_context(self, app):
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return Context({
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'name': '"%s"' % app.name,
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'app_name': "%s" % app.name,
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'cluster_app_name': "cluster_%s" % app.name.replace(".", "_"),
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'models': []
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})
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def get_appmodel_attributes(self, appmodel):
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if self.relations_as_fields:
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attributes = [field for field in appmodel._meta.local_fields]
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else:
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# Find all the 'real' attributes. Relations are depicted as graph edges instead of attributes
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attributes = [field for field in appmodel._meta.local_fields if not
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isinstance(field, RelatedField)]
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return attributes
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def get_appmodel_abstracts(self, appmodel):
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return [abstract_model.__name__ for abstract_model in
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appmodel.__bases__ if
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hasattr(abstract_model, '_meta') and
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abstract_model._meta.abstract]
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def get_appmodel_context(self, appmodel, appmodel_abstracts):
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context = {
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'app_name': appmodel.__module__.replace(".", "_"),
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'name': appmodel.__name__,
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'abstracts': appmodel_abstracts,
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'fields': [],
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'relations': []
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}
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if self.verbose_names and appmodel._meta.verbose_name:
|
||||
context['label'] = force_bytes(appmodel._meta.verbose_name)
|
||||
else:
|
||||
context['label'] = context['name']
|
||||
|
||||
return context
|
||||
|
||||
def get_bases_abstract_fields(self, c):
|
||||
_abstract_fields = []
|
||||
for e in c.__bases__:
|
||||
if hasattr(e, '_meta') and e._meta.abstract:
|
||||
_abstract_fields.extend(e._meta.fields)
|
||||
_abstract_fields.extend(self.get_bases_abstract_fields(e))
|
||||
return _abstract_fields
|
||||
|
||||
def get_inheritance_context(self, appmodel, parent):
|
||||
label = "multi-table"
|
||||
if parent._meta.abstract:
|
||||
label = "abstract"
|
||||
if appmodel._meta.proxy:
|
||||
label = "proxy"
|
||||
label += r"\ninheritance"
|
||||
return {
|
||||
'target_app': parent.__module__.replace(".", "_"),
|
||||
'target': parent.__name__,
|
||||
'type': "inheritance",
|
||||
'name': "inheritance",
|
||||
'label': label,
|
||||
'arrows': '[arrowhead=empty, arrowtail=none, dir=both]',
|
||||
'needs_node': True,
|
||||
}
|
||||
|
||||
def get_models(self, app):
|
||||
appmodels = list(app.get_models())
|
||||
return appmodels
|
||||
|
||||
def get_relation_context(self, target_model, field, label, extras):
|
||||
return {
|
||||
'target_app': target_model.__module__.replace('.', '_'),
|
||||
'target': target_model.__name__,
|
||||
'type': type(field).__name__,
|
||||
'name': field.name,
|
||||
'label': label,
|
||||
'arrows': extras,
|
||||
'needs_node': True
|
||||
}
|
||||
|
||||
def process_attributes(self, field, model, pk, abstract_fields):
|
||||
newmodel = model.copy()
|
||||
if self.skip_field(field) or pk and field == pk:
|
||||
return newmodel
|
||||
newmodel['fields'].append(self.add_attributes(field, abstract_fields))
|
||||
return newmodel
|
||||
|
||||
def process_apps(self):
|
||||
for app_label in self.app_labels:
|
||||
app = apps.get_app_config(app_label)
|
||||
if not app:
|
||||
continue
|
||||
app_graph = self.get_app_context(app)
|
||||
app_models = self.get_models(app)
|
||||
abstract_models = self.get_abstract_models(app_models)
|
||||
app_models = abstract_models + app_models
|
||||
|
||||
for appmodel in app_models:
|
||||
if not self.use_model(appmodel._meta.object_name):
|
||||
continue
|
||||
appmodel_abstracts = self.get_appmodel_abstracts(appmodel)
|
||||
abstract_fields = self.get_bases_abstract_fields(appmodel)
|
||||
model = self.get_appmodel_context(appmodel, appmodel_abstracts)
|
||||
attributes = self.get_appmodel_attributes(appmodel)
|
||||
|
||||
# find primary key and print it first, ignoring implicit id if other pk exists
|
||||
pk = appmodel._meta.pk
|
||||
if pk and not appmodel._meta.abstract and pk in attributes:
|
||||
model['fields'].append(self.add_attributes(pk, abstract_fields))
|
||||
|
||||
for field in attributes:
|
||||
model = self.process_attributes(field, model, pk, abstract_fields)
|
||||
|
||||
if self.sort_fields:
|
||||
model = self.sort_model_fields(model)
|
||||
|
||||
for field in appmodel._meta.local_fields:
|
||||
model = self.process_local_fields(field, model, abstract_fields)
|
||||
|
||||
for field in appmodel._meta.local_many_to_many:
|
||||
model = self.process_local_many_to_many(field, model)
|
||||
|
||||
if self.inheritance:
|
||||
# add inheritance arrows
|
||||
for parent in appmodel.__bases__:
|
||||
model = self.process_parent(parent, appmodel, model)
|
||||
|
||||
app_graph['models'].append(model)
|
||||
if app_graph['models']:
|
||||
self.graphs.append(app_graph)
|
||||
|
||||
def process_local_fields(self, field, model, abstract_fields):
|
||||
newmodel = model.copy()
|
||||
if (field.attname.endswith('_ptr_id') or # excluding field redundant with inheritance relation
|
||||
field in abstract_fields or # excluding fields inherited from abstract classes. they too show as local_fields
|
||||
self.skip_field(field)):
|
||||
return newmodel
|
||||
if isinstance(field, OneToOneField):
|
||||
newmodel['relations'].append(self.add_relation(field, newmodel, '[arrowhead=none, arrowtail=none, dir=both]'))
|
||||
elif isinstance(field, ForeignKey):
|
||||
newmodel['relations'].append(self.add_relation(field, newmodel, '[arrowhead=none, arrowtail=dot, dir=both]'))
|
||||
return newmodel
|
||||
|
||||
def process_local_many_to_many(self, field, model):
|
||||
newmodel = model.copy()
|
||||
if self.skip_field(field):
|
||||
return newmodel
|
||||
if isinstance(field, ManyToManyField):
|
||||
remote_field = field.remote_field if hasattr(field, 'remote_field') else field.rel # Remove me after Django 1.8 is unsupported
|
||||
if hasattr(remote_field.through, '_meta') and remote_field.through._meta.auto_created:
|
||||
newmodel['relations'].append(self.add_relation(field, newmodel, '[arrowhead=dot arrowtail=dot, dir=both]'))
|
||||
elif isinstance(field, GenericRelation):
|
||||
newmodel['relations'].append(self.add_relation(field, newmodel, mark_safe('[style="dotted", arrowhead=normal, arrowtail=normal, dir=both]')))
|
||||
return newmodel
|
||||
|
||||
def process_parent(self, parent, appmodel, model):
|
||||
newmodel = model.copy()
|
||||
if hasattr(parent, "_meta"): # parent is a model
|
||||
_rel = self.get_inheritance_context(appmodel, parent)
|
||||
# TODO: seems as if abstract models aren't part of models.getModels, which is why they are printed by this without any attributes.
|
||||
if _rel not in newmodel['relations'] and self.use_model(_rel['target']):
|
||||
newmodel['relations'].append(_rel)
|
||||
return newmodel
|
||||
|
||||
def sort_model_fields(self, model):
|
||||
newmodel = model.copy()
|
||||
newmodel['fields'] = sorted(newmodel['fields'], key=lambda field: (not field['primary_key'], not field['relation'], field['label']))
|
||||
return newmodel
|
||||
|
||||
def use_model(self, model_name):
|
||||
"""
|
||||
Decide whether to use a model, based on the model name and the lists of
|
||||
models to exclude and include.
|
||||
"""
|
||||
# Check against exclude list.
|
||||
if self.exclude_models:
|
||||
for model_pattern in self.exclude_models:
|
||||
model_pattern = '^%s$' % model_pattern.replace('*', '.*')
|
||||
if re.search(model_pattern, model_name):
|
||||
return False
|
||||
# Check against exclude list.
|
||||
elif self.include_models:
|
||||
for model_pattern in self.include_models:
|
||||
model_pattern = '^%s$' % model_pattern.replace('*', '.*')
|
||||
if re.search(model_pattern, model_name):
|
||||
return True
|
||||
# Return `True` if `include_models` is falsey, otherwise return `False`.
|
||||
return not self.include_models
|
||||
|
||||
def skip_field(self, field):
|
||||
if self.exclude_columns:
|
||||
if self.verbose_names and field.verbose_name:
|
||||
if field.verbose_name in self.exclude_columns:
|
||||
return True
|
||||
if field.name in self.exclude_columns:
|
||||
return True
|
||||
return False
|
||||
|
||||
|
||||
def generate_dot(graph_data, template='django_extensions/graph_models/digraph.dot'):
|
||||
t = loader.get_template(template)
|
||||
|
||||
if not isinstance(t, Template) and not (hasattr(t, 'template') and isinstance(t.template, Template)):
|
||||
raise Exception("Default Django template loader isn't used. "
|
||||
"This can lead to the incorrect template rendering. "
|
||||
"Please, check the settings.")
|
||||
|
||||
c = Context(graph_data).flatten()
|
||||
dot = t.render(c)
|
||||
|
||||
return dot
|
||||
|
||||
|
||||
def generate_graph_data(*args, **kwargs):
|
||||
generator = ModelGraph(*args, **kwargs)
|
||||
generator.generate_graph_data()
|
||||
return generator.get_graph_data()
|
||||
|
||||
|
||||
def use_model(model, include_models, exclude_models):
|
||||
generator = ModelGraph([], include_models=include_models, exclude_models=exclude_models)
|
||||
return generator.use_model(model)
|
||||
|
||||
Loading…
Reference in a new issue