Files
mayan-edms/mayan/apps/common/classes.py
Roberto Rosario 1eb9975dd6 Fix server side AJAX template rendering
Signed-off-by: Roberto Rosario <Roberto.Rosario@mayan-edms.com>
2019-04-06 20:05:33 -04:00

317 lines
8.7 KiB
Python

from __future__ import unicode_literals
import hashlib
from django.apps import apps
from django.db import models
from django.template.response import TemplateResponse
from django.urls import reverse
from django.utils.encoding import force_text, python_2_unicode_compatible
from django.utils.translation import ugettext
from .settings import setting_home_view
@python_2_unicode_compatible
class Collection(object):
_registry = []
@classmethod
def get_all(cls):
return sorted(cls._registry, key=lambda entry: entry._order)
def __init__(self, label, icon=None, icon_class=None, link=None, queryset=None, model=None, order=None):
self._label = label
self._icon = icon
self._icon_class = icon_class
self._link = link
self._queryset = queryset
self._model = model
self._order = order or 99
self.__class__._registry.append(self)
def __str__(self):
return force_text(self.label)
def resolve(self):
self.children = self._get_children()
self.icon = self._icon
self.label = self._label
self.url = None
if self._link:
self.icon = getattr(self._link, 'icon', self._icon)
self.icon_class = getattr(self._link, 'icon_class', self._icon_class)
self.url = reverse(viewname=self._link.view, args=self._link.args)
return ''
def _get_children(self):
if self._queryset:
return self._queryset
else:
if self._model:
return self._model.objects.all()
@python_2_unicode_compatible
class ErrorLogNamespace(object):
def __init__(self, name, label=None):
self.name = name
self.label = label or name
def __str__(self):
return force_text(self.label)
def create(self, obj, result):
obj.error_logs.create(namespace=self.name, result=result)
def all(self):
ErrorLogEntry = apps.get_model(
app_label='common', model_name='ErrorLogEntry'
)
return ErrorLogEntry.objects.filter(namespace=self.name)
class MissingItem(object):
_registry = []
@classmethod
def get_all(cls):
return cls._registry
def __init__(self, label, condition, description, view):
self.label = label
self.condition = condition
self.description = description
self.view = view
self.__class__._registry.append(self)
@python_2_unicode_compatible
class ModelAttribute(object):
_registry = {}
@classmethod
def get_for(cls, model):
try:
return cls._registry[model]
except KeyError:
# We were passed a model instance, try again using the model of
# the instance
# If we are already in the model class, exit with an error
if model.__class__ == models.base.ModelBase:
raise
return cls.get_for(model=type(model))
@classmethod
def get_choices_for(cls, model):
return [
(attribute.name, attribute) for attribute in cls.get_for(model)
]
@classmethod
def get_help_text_for(cls, model, show_name=False):
result = []
for count, attribute in enumerate(cls.get_for(model=model), 1):
result.append(
'{}) {}'.format(
count, force_text(attribute.get_display(show_name=show_name))
)
)
return ' '.join(
[ugettext('Available attributes: \n'), '\n'.join(result)]
)
def __init__(self, model, name, label=None, description=None):
self.model = model
self.label = label
self.name = name
self.description = description
self._registry.setdefault(model, [])
self._registry[model].append(self)
def __str__(self):
return self.get_display()
def get_label(self):
if self.label:
return self.label
else:
return getattr(
getattr(self.model, self.name), 'short_description', self.name
)
def get_description(self):
if self.description:
return self.description
else:
return getattr(getattr(self.model, self.name), 'help_text', None)
def get_display(self, show_name=False):
if self.get_description():
return '{} - {}'.format(
self.name if show_name else self.get_label(), self.get_description()
)
else:
return force_text(self.name if show_name else self.get_label())
class ModelField(ModelAttribute):
"""Subclass to handle model database fields"""
_registry = {}
@classmethod
def get_help_text_for(cls, model, show_name=False):
result = []
for count, model_field in enumerate(cls.get_for(model=model), 1):
result.append(
'{}) {} - {}'.format(
count,
model_field.name if show_name else model_field.label,
model_field.description
)
)
return ' '.join(
[ugettext('Available fields: \n'), '\n'.join(result)]
)
def __init__(self, *args, **kwargs):
super(ModelField, self).__init__(*args, **kwargs)
self._final_model_verbose_name = None
if not self.label:
self.label = self.get_field_attribute(
attribute='verbose_name'
)
if self.label != self._final_model_verbose_name:
self.label = '{} {}'.format(
self._final_model_verbose_name, self.label
)
if not self.description:
self.description = self.get_field_attribute(
attribute='help_text'
)
def get_field_attribute(self, attribute, model=None, field_name=None):
if not model:
model = self.model
if not field_name:
field_name = self.name
parts = field_name.split('__')
if len(parts) > 1:
return self.get_field_attribute(
model=model._meta.get_field(parts[0]).related_model,
field_name='__'.join(parts[1:]), attribute=attribute
)
else:
self._final_model_verbose_name = model._meta.verbose_name
return getattr(
model._meta.get_field(field_name=field_name),
attribute
)
class ModelProperty(object):
_registry = []
@classmethod
def get_for(cls, model):
result = []
for klass in cls._registry:
result.extend(klass.get_for(model=model))
return result
@classmethod
def get_choices_for(cls, model):
result = []
for klass in cls._registry:
result.extend(klass.get_choices_for(model=model))
return result
@classmethod
def get_help_text_for(cls, model, show_name=False):
result = []
for klass in cls._registry:
result.append(
klass.get_help_text_for(model=model, show_name=show_name)
)
return '\n'.join(result)
@classmethod
def register(cls, klass):
cls._registry.append(klass)
class Package(object):
_registry = []
@classmethod
def get_all(cls):
return cls._registry
def __init__(self, label, license_text):
self.label = label
self.license_text = license_text
self.__class__._registry.append(self)
class Template(object):
_registry = {}
@classmethod
def all(cls, rendered=False, request=None):
if not rendered:
return cls._registry.values()
else:
result = []
for template in cls._registry.values():
result.append(template.render(request=request))
return result
@classmethod
def get(cls, name):
return cls._registry[name]
def __init__(self, name, template_name):
self.name = name
self.template_name = template_name
self.__class__._registry[name] = self
def get_absolute_url(self):
return reverse(
viewname='rest_api:template-detail', kwargs={'template_name': self.name}
)
def render(self, request):
context = {
'home_view': setting_home_view.value,
}
result = TemplateResponse(
request=request,
template=self.template_name,
context=context,
).render()
# Calculate the hash of the bytes version but return the unicode
# version
self.html = result.rendered_content.replace('\n', '')
self.hex_hash = hashlib.sha256(result.content).hexdigest()
return self
ModelProperty.register(ModelAttribute)
ModelProperty.register(ModelField)