def sqlcontentclass_engine_created_handler(self, source, target):
"""create and register the handler for the IEngineCreatedEvent.
"""
if source.stereotype('pyegg:stub'):
return
targetpack=read_target_node(source,target.target)
targetpack['saconfig.py']=Module()
module = targetpack['saconfig.py']
imps = Imports(module)
# check if one of the parent packages has the z3c_saconfig stereotype
z3c_saconfig=get_z3c_saconfig(source)
# add engine-created handler
if z3c_saconfig:
eggtgv=TaggedValues(z3c_saconfig)
engine_name = eggtgv.direct(
'engine_name', 'sql:z3c_saconfig', 'default')
globalfuncs = [f for f in module.filtereditems(IFunction)]
globalfuncnames = [f.functionname for f in globalfuncs]
if 'engineCreatedHandler' not in globalfuncnames:
imps.set('z3c.saconfig.interfaces',
[['IEngineCreatedEvent', None]])
imps.set('zope', [['component', None]])
imps.set('z3c.saconfig.interfaces',[['IEngineFactory',None]])
imps.set('sqlalchemy.ext.declarative','declarative_base')
#att = [att for att in module.filtereditems(IAttribute) \
# if att.targets == ['Base']][0]
bases=module.attributes('Base')
if not bases:
base=Attribute('Base','declarative_base()')
module.insertafterimports(base)
else:
base=bases[0]
ff = Function('engineCreatedHandler')
# 'engineCreatedHandler'
ff.__name__ = ff.uuid
ff.args = ('event',)
dec = Decorator('component.adapter')
dec.__name__ = dec.uuid
dec.args = ('IEngineCreatedEvent',)
ff.insertfirst(dec)
block_lines = [
"fact = component.queryUtility(IEngineFactory, '%s')" \
% engine_name,
"if fact and fact._args == event.engine_args:",
" Base.metadata.create_all(event.engine)",
]
block = Block('\n'.join(block_lines))
block.__name__ = block.uuid
ff.insertlast(block)
module.insertafter(ff, base)
prov = Block('component.provideHandler(engineCreatedHandler)')
prov.__name__ = prov.uuid
module.insertafter(prov, ff)
def generatescopeclass(self, source, target):
"""Generates scope classes.
"""
if source.stereotype('pyegg:stub'):
return
targetclass = read_target_node(source, target.target)
module = targetclass.parent
methods = [m for m in targetclass.functions()]
methnames = [m.functionname for m in methods]
methname = '__call__'
tgv = TaggedValues(source)
stereotypes = tgv.direct('stereotypes', 'generator:class_scope', None) or \
tgv.direct('stereotypes', 'generator:simple_scope', None) or []
transform = tgv.direct('transform', 'generator:class_scope', None) or \
tgv.direct('transform', 'generator:simple_scope', None) or \
'uml2fs'
if stereotypes:
for st in stereotypes:
if ':' not in st:
msg = 'you have to specify the stereotype in the form ' + \
'"namespace:stereotype", but forgot the namespace ' + \
'(scope %s, stereotype %s)' % (source.name, st)
raise ValueError(msg)
#if not stereotypes:
# msg = 'scope %s must have a stereotype attribute!!' % source.name
# raise ValueError(msg)
if 'Scope' not in targetclass.bases:
targetclass.bases.append('Scope')
if methname not in methnames:
f = Function()
f.functionname = methname
f.args = ['self', 'node']
f.__name__ = str(f.uuid)
targetclass.insertfirst(f)
bl = Block()
bl.__name__ = str(bl.uuid)
conds = [
"node.stereotype('%s') is not None" % st for st in stereotypes
]
cond = ' or '.join(conds)
bl.lines.append("return %s" % cond)
f.insertfirst(bl)
def generatescopeclass(self, source, target):
"""Generates scope classes.
"""
if source.stereotype('pyegg:stub'):
return
targetclass = read_target_node(source, target.target)
module = targetclass.parent
methods = [m for m in targetclass.functions()]
methnames = [m.functionname for m in methods]
methname = '__call__'
tgv = TaggedValues(source)
stereotypes = tgv.direct('stereotypes', 'generator:class_scope', None) or \
tgv.direct('stereotypes', 'generator:simple_scope', None) or []
transform = tgv.direct('transform', 'generator:class_scope', None) or \
tgv.direct('transform', 'generator:simple_scope', None) or \
'uml2fs'
if stereotypes:
for st in stereotypes:
if ':' not in st:
msg = 'you have to specify the stereotype in the form ' + \
'"namespace:stereotype", but forgot the namespace ' + \
'(scope %s, stereotype %s)' % (source.name, st)
raise ValueError(msg)
#if not stereotypes:
# msg = 'scope %s must have a stereotype attribute!!' % source.name
# raise ValueError(msg)
if 'Scope' not in targetclass.bases:
targetclass.bases.append('Scope')
if methname not in methnames:
f = Function()
f.functionname = methname
f.args = ['self', 'node']
f.__name__ = str(f.uuid)
targetclass.insertfirst(f)
bl = Block()
bl.__name__ = str(bl.uuid)
conds = ["node.stereotype('%s') is not None" % st for st in stereotypes]
cond = ' or '.join(conds)
bl.lines.append("return %s" % cond)
f.insertfirst(bl)
def create_register_func(self, source, target):
"""Creates the register function.
"""
if not token(str(source.uuid),True,is_generator_egg=False).is_generator_egg:
return
init = read_target_node(source, target.target)['__init__.py']
fname = 'register'
path = dotted_path(source)
if fname not in [f.functionname for f in init.functions()]:
f = Function()
f.functionname = fname
f.__name__ = str(f.uuid)
bl = Block()
bl.__name__ = str(bl.uuid)
bl.lines.append('"""register this generator"""')
bl.lines.append("import %s" % path)
bl.lines.append("from agx.core.config import register_generator")
bl.lines.append("register_generator(%s)" % path)
f.insertfirst(bl)
init[f.name] = f
def create_register_func(self, source, target):
"""Creates the register function.
"""
if not token(str(source.uuid), True,
is_generator_egg=False).is_generator_egg:
return
init = read_target_node(source, target.target)['__init__.py']
fname = 'register'
path = dotted_path(source)
if fname not in [f.functionname for f in init.functions()]:
f = Function()
f.functionname = fname
f.__name__ = str(f.uuid)
bl = Block()
bl.__name__ = str(bl.uuid)
bl.lines.append('"""register this generator"""')
bl.lines.append("import %s" % path)
bl.lines.append("from agx.core.config import register_generator")
bl.lines.append("register_generator(%s)" % path)
f.insertfirst(bl)
init[f.name] = f
