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gen.py
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gen.py
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import argparse
import os
import random
class Field(object):
TEMPLATE = """{name} = models.{tp}({options})"""
def __init__(self, name, tp, *args, **kwargs):
self.name = name
self.tp = tp
self.args = args
self.kwargs = kwargs
def as_str(self):
options = ''
if self.args:
args = ', '.join(self.args)
options = args
if self.kwargs:
kwargs_list = map(lambda (x,y): '{}={}'.format(x,y),
self.kwargs.items())
kwargs = ', '.join(kwargs_list)
if self.args:
options = '{}, {}'.format(options, kwargs)
else:
options = kwargs
return self.TEMPLATE.format(
name=self.name,
tp=self.tp,
options=options)
class Model(object):
TEMPLATE = """class {name}(models.Model):\n{content}"""
def __init__(self, name, fields):
self.name = name
self.fields = fields
def as_str(self):
pad4 = lambda x: ' {}'.format(x.as_str())
content = '\n'.join(map(pad4, self.fields))
return self.TEMPLATE.format(
name=self.name,
content=content or ' pass')
class Module(object):
TEMPLATE = """from django.db import models\n\n\n{content}"""
def __init__(self, name, models):
self.name = name
self.models = models
def as_str(self):
content = '\n\n\n'.join(m.as_str() for m in self.models)
return self.TEMPLATE.format(content=content)
def module_builder(num_modules, num_models, max_fields):
modules = []
mf = 'M{}' # model format
mc = 0; # model counter
ff = 'f{}' # field format
fc = 0 # field counter
fields = (
('CharField', [], dict(max_length=200)),
('TextField', [], {}),
('IntegerField', [], dict(default=1)),
)
for i in range(num_modules):
models = []
for j in range(num_models//num_modules):
_max_fields = random.randrange(1, max_fields+1)
_fields = []
for idx in range(fc, fc+_max_fields):
_type, args, kwargs = random.choice(fields)
_fields.append(Field(ff.format(idx), _type, *args, **kwargs))
fc += idx
mc += 1
models.append(Model(mf.format(mc), _fields))
modules.append(Module('models.py', models))
return modules
def apps_builder(target, num_apps, num_models, max_fields):
modules = module_builder(num_apps, num_models, max_fields)
pad4 = lambda x: ' {}'.format(x)
if not os.path.exists(target):
os.makedirs(target)
app_counter = 0
app_format = 'app{}'
apps = []
for module in modules:
app_counter += 1
app_name = app_format.format(app_counter)
apps.append("'{}'".format(app_name))
app_path = os.path.join(target, app_name)
init_file = os.path.join(app_path, '__init__.py')
models_file = os.path.join(app_path, module.name)
if not os.path.exists(app_path):
os.makedirs(app_path)
open(init_file, 'a').close()
with open(models_file, 'a') as f:
f.write(module.as_str())
with open(os.path.join(target, 'apps_settings.txt'), 'a') as f:
installed_apps = 'INSTALLED_APPS += [\n{}\n]'
f.write(installed_apps.format(',\n'.join(map(pad4, apps))))
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument('target', help='target django directory')
parser.add_argument('-a', '--apps', default=1, type=int)
parser.add_argument('-m', '--models', default=1, type=int)
parser.add_argument('-f', '--max-fields', default=1, type=int)
args = parser.parse_args()
apps = apps_builder(args.target, args.apps, args.models, args.max_fields)