def load_module_from_dict(d):
required = ['name', 'id_name', 'category']
for x in required:
if not x in d:
raise ValueError("Module specification missing field " + x)
id_name = d['id_name']
# If we can find an existing module with the same id_name, use that
matches = Module.objects.filter(id_name=id_name)
if len(matches)>0:
assert (len(matches) == 1) # no duplicates please
module = matches[0]
else:
module = Module()
# save module data
module.name=d['name']
module.category=d['category']
module.id_name=id_name
module.dispatch=id_name
module.source=d['source'] if 'source' in d else ""
module.save()
#add module.last_updated here.
source_version = d['source_version'] if 'source_version' in d else '1.0'
version_matches = ModuleVersion.objects.filter(module=module, source_version_hash = source_version)
if len(version_matches) > 0:
assert (len(version_matches) == 1) # no duplicates please
module_version = version_matches[0]
else:
module_version = ModuleVersion()
module_version.source_version_hash = source_version
#the last_update_time should automatically be added based on _now_.
#possible todo: should this be driven based on the last_commit time or the last system time?
module_version.module = module
module_version.save()
# load params
if 'parameters' in d:
pspecs = [ load_parameter_spec(p, module_version, order) for (order,p) in enumerate(d['parameters']) ]
else:
pspecs = []
# delete all ParameterSpecs (and hence ParameterVals) for this module that were not in the new module description
for ps in ParameterSpec.objects.filter(module_version=module_version):
if ps not in pspecs: # relies on model == comparing id field
ps.delete()
return module_version
def load_module_from_dict(d):
with transaction.atomic():
required = ['name', 'id_name', 'category']
for x in required:
if not x in d:
raise ValueError("Module specification missing field " + x)
id_name = d['id_name']
# If we can find an existing module with the same id_name, use that
try:
module = Module.objects.get(id_name=id_name)
except Module.DoesNotExist:
module = Module()
# save module data
module.name = d['name']
module.category = d['category']
module.id_name = id_name
module.dispatch = id_name
module.source = d.get('source', '')
module.description = d.get('description', '')
module.author = d.get('author', 'Workbench')
module.link = d.get('link', '')
module.icon = d.get('icon', 'settings')
module.loads_data = d.get('loads_data', False)
module.help_url = d.get('help_url', '')
module.has_zen_mode = d.get('has_zen_mode', False)
module.row_action_menu_entry_title = d.get(
'row_action_menu_entry_title', '')
module.save()
source_version = d.get(
'source_version',
'1.0') # if no source_version, internal module, version 1.0 always
try:
# if we are loading the same version again, re-use existing module_version
module_version = ModuleVersion.objects.get(
module=module, source_version_hash=source_version)
reusing_version = True
except ModuleVersion.DoesNotExist:
module_version = ModuleVersion(module=module,
source_version_hash=source_version)
reusing_version = False
module_version.html_output = d.get('html_output', False)
module_version.save()
# load params
if 'parameters' in d:
pspecs = [
load_parameter_spec(p, module_version, order)
for (order, p) in enumerate(d['parameters'])
]
else:
pspecs = []
# Migrate parameters, if we're updating an existing module_version
if reusing_version:
# Deleted parameters
new_id_names = [p.id_name for p in pspecs]
for old_spec in ParameterSpec.objects.filter(
module_version=module_version):
if old_spec.id_name not in new_id_names:
old_spec.delete(
) # also deletes old ParameterVals via cascade
for new_spec in pspecs:
try:
# Changed parameters
old_spec = ParameterSpec.objects.\
exclude(id=new_spec.id).\
get(id_name=new_spec.id_name, module_version=module_version)
for pv in ParameterVal.objects.filter(
parameter_spec=old_spec):
migrate_parameter_val(pv, old_spec, new_spec)
old_spec.delete()
except ParameterSpec.DoesNotExist:
# Added parameters
for wfm in WfModule.objects.filter(
module_version=module_version):
create_parameter_val(wfm, new_spec)
return module_version
