X-Git-Url: http://git.ithinksw.org/philo.git/blobdiff_plain/82e22de23b182353e35aa4e2fde0c08f4df5653f..9a80d9302cbe6bc9fcd69ce86acf5c31ffab0693:/forms.py?ds=sidebyside diff --git a/forms.py b/forms.py index b428d28..506ab71 100644 --- a/forms.py +++ b/forms.py @@ -1,6 +1,9 @@ -from django.forms.models import model_to_dict, fields_for_model, ModelFormMetaclass, ModelForm +from django.core.exceptions import ValidationError, ObjectDoesNotExist +from django.forms.models import model_to_dict, fields_for_model, ModelFormMetaclass, ModelForm, BaseInlineFormSet +from django.forms.formsets import TOTAL_FORM_COUNT +from django.template import loader, loader_tags, TemplateDoesNotExist, Context, Template as DjangoTemplate from django.utils.datastructures import SortedDict -from philo.models import Entity +from philo.models import Entity, Template, Contentlet, ContentReference from philo.models.fields import RelationshipField from philo.utils import fattr @@ -30,7 +33,7 @@ def proxy_fields_for_entity_model(entity_model, fields=None, exclude=None, widge if fields: field_dict = SortedDict( [(f, field_dict.get(f)) for f in fields - if ((not exclude) or (exclude and f not in exclude)) and (f not in ignored)] + if ((not exclude) or (exclude and f not in exclude)) and (f not in ignored) and (f in field_dict)] ) return field_dict @@ -86,4 +89,140 @@ class EntityForm(EntityFormBase): # Would inherit from ModelForm directly if it instance.save() self.save_m2m() - return instance \ No newline at end of file + return instance + + +def validate_template(template): + """ + Makes sure that the template and all included or extended templates are valid. + """ + for node in template.nodelist: + try: + if isinstance(node, loader_tags.ExtendsNode): + extended_template = node.get_parent(Context()) + validate_template(extended_template) + elif isinstance(node, loader_tags.IncludeNode): + included_template = loader.get_template(node.template_name.resolve(Context())) + validate_template(extended_template) + except Exception, e: + raise ValidationError("Template code invalid. Error was: %s: %s" % (e.__class__.__name__, e)) + + +class TemplateForm(ModelForm): + def clean_code(self): + code = self.cleaned_data['code'] + try: + t = DjangoTemplate(code) + except Exception, e: + raise ValidationError("Template code invalid. Error was: %s: %s" % (e.__class__.__name__, e)) + + validate_template(t) + return code + + class Meta: + model = Template + + +class ContainerForm(ModelForm): + def __init__(self, *args, **kwargs): + super(ContainerForm, self).__init__(*args, **kwargs) + self.verbose_name = self.instance.name.replace('_', ' ') + + +class ContentletForm(ContainerForm): + class Meta: + model = Contentlet + fields = ['name', 'content', 'dynamic'] + + +class ContentReferenceForm(ContainerForm): + class Meta: + model = ContentReference + fields = ['name', 'content_id'] + + +class ContainerInlineFormSet(BaseInlineFormSet): + def __init__(self, containers, data=None, files=None, instance=None, save_as_new=False, prefix=None, queryset=None): + # Unfortunately, I need to add some things to BaseInline between its __init__ and its super call, so + # a lot of this is repetition. + + # Start cribbed from BaseInline + from django.db.models.fields.related import RelatedObject + self.save_as_new = save_as_new + # is there a better way to get the object descriptor? + self.rel_name = RelatedObject(self.fk.rel.to, self.model, self.fk).get_accessor_name() + if self.fk.rel.field_name == self.fk.rel.to._meta.pk.name: + backlink_value = self.instance + else: + backlink_value = getattr(self.instance, self.fk.rel.field_name) + if queryset is None: + queryset = self.model._default_manager + qs = queryset.filter(**{self.fk.name: backlink_value}) + # End cribbed from BaseInline + + self.container_instances, qs = self.get_container_instances(containers, qs) + self.extra_containers = containers + self.extra = len(self.extra_containers) + super(BaseInlineFormSet, self).__init__(data, files, prefix=prefix, queryset=qs) + + def get_container_instances(self, containers, qs): + raise NotImplementedError + + def total_form_count(self): + if self.data or self.files: + return self.management_form.cleaned_data[TOTAL_FORM_COUNT] + else: + return self.initial_form_count() + self.extra + + +class ContentletInlineFormSet(ContainerInlineFormSet): + def __init__(self, data=None, files=None, instance=None, save_as_new=False, prefix=None, queryset=None): + if instance is None: + self.instance = self.fk.rel.to() + containers = [] + else: + self.instance = instance + containers = list(self.instance.containers[0]) + + super(ContentletInlineFormSet, self).__init__(containers, data, files, instance, save_as_new, prefix, queryset) + + def get_container_instances(self, containers, qs): + qs = qs.filter(name__in=containers) + container_instances = [] + for container in qs: + container_instances.append(container) + containers.remove(container.name) + return container_instances, qs + + def _construct_form(self, i, **kwargs): + if i >= self.initial_form_count(): # and not kwargs.get('instance'): + kwargs['instance'] = self.model(name=self.extra_containers[i - self.initial_form_count() - 1]) + + return super(ContentletInlineFormSet, self)._construct_form(i, **kwargs) + + +class ContentReferenceInlineFormSet(ContainerInlineFormSet): + def __init__(self, data=None, files=None, instance=None, save_as_new=False, prefix=None, queryset=None): + if instance is None: + self.instance = self.fk.rel.to() + containers = [] + else: + self.instance = instance + containers = list(self.instance.containers[1]) + + super(ContentReferenceInlineFormSet, self).__init__(containers, data, files, instance, save_as_new, prefix, queryset) + + def get_container_instances(self, containers, qs): + qs = qs.filter(name__in=[c[0] for c in containers]) + container_instances = [] + for container in qs: + container_instances.append(container) + containers.remove((container.name, container.content_type)) + return container_instances, qs + + def _construct_form(self, i, **kwargs): + if i >= self.initial_form_count(): # and not kwargs.get('instance'): + name, content_type = self.extra_containers[i - self.initial_form_count() - 1] + kwargs['instance'] = self.model(name=name, content_type=content_type) + + return super(ContentReferenceInlineFormSet, self)._construct_form(i, **kwargs) \ No newline at end of file