stoat / stoat /

from django import forms
from django.db.models.loading import get_model
from models import Page
from stemplates import get_fields
from models import clean_field_title

class PageContentForm(forms.Form):

def _get_field(typ, title, options):
    typ = typ.lower()
    required = options.get('required', False)

    if typ == 'char':
        return forms.CharField(max_length=140, label=title, required=required)

    if typ == 'text':
        return forms.CharField(widget=forms.Textarea(), label=title, required=required)

    if typ == 'int':
        return forms.IntegerField(label=title, required=required)

    if typ == 'url':
        return forms.URLField(label=title, required=required, verify_exists=False)

    if typ == 'ckeditor':
        from ckeditor.widgets import CKEditor

        config = options.get('config', 'default')
        return forms.CharField(widget=CKEditor(ckeditor_config=config),
                               label=title, required=required)

    if typ == 'email':
        return forms.EmailField(label=title, required=required)

    if typ == 'bool':
        return forms.BooleanField(label=title, required=required)

    if typ == 'float':
        return forms.FloatField(label=title, required=required)

    if typ == 'decimal':
        return forms.DecimalField(label=title, required=required)

    if typ == 'img':
        from filebrowser.fields import FileBrowseFormField, FileBrowseWidget

        attrs = { 'directory': '', 'extensions': '', 'format': 'Image', }

        return FileBrowseFormField(format='Image', label=title, required=required,

    if typ == 'file':
        from filebrowser.fields import FileBrowseFormField, FileBrowseWidget

        fmat = options.get('format', 'File')
        attrs = { 'directory': '', 'extensions': '', 'format': fmat, }

        return FileBrowseFormField(format=fmat, label=title, required=required,

    if typ == 'fk':
        app_label = options.get('app', 'stoat')
        model_name = options.get('model', 'Page')
        model = get_model(app_label, model_name)

        return forms.ModelChoiceField(model.objects.all(), label=title, required=required)

    if typ == 'inline':
        return None

    assert False, "Unknown field type '%s' for field '%s'" % (typ, title)

def get_content_form(tname, data=None, initial=None):
    fs = get_fields(tname)

    if data:
        data = dict((k, v) for k, v in data.items() if k.startswith('content_'))
        form = PageContentForm(data)
    elif initial:
        form = PageContentForm(initial=initial)
        form = PageContentForm()

    for title, typ, options in fs:
        f = _get_field(typ, title, options)
        if f:
            form.fields['content_' + clean_field_title(title)] = f

    return form

class PageForm(forms.ModelForm):
    parent = forms.IntegerField(required=False)

    class Meta:
        model = Page

    def _clean_content(self):
        '''Clean the content_* fields in

        Only done when:

        1. This is not a create.
        2. We're not changing the template.


        self.ignore_content = ((not self.instance or not
                               or (self.instance.template != self.cleaned_data['template']))
        if self.ignore_content:

        form = get_content_form(self.instance.template,
        if not form.is_valid():
            raise forms.ValidationError('Invalid page content!')

    def clean(self):
        cd = self.cleaned_data

        if 'slug' in cd:
            if cd.get('parent', ''):
                peers = Page.objects.get(id=cd['parent']).get_children()
                peers = Page.get_root_nodes()

            peers = [peer.slug for peer in list(peers) if !=]
            if cd['slug'] in peers:
                raise forms.ValidationError('A sibling page with that slug already exists!')


        return cd

    def save(self, *args, **kwargs):
        cd = self.cleaned_data
        pid = cd.pop('parent', '')
        parent = Page.objects.get(pk=pid) if pid else None

        if is None:
            if parent:
                self.instance = parent.add_child(**cd)
                self.instance.move(parent, pos='first-child')
                self.instance = Page.add_root(**cd)
            previous_parent = self.instance.get_parent()
            if parent != previous_parent:
                if parent:
                    self.instance.move(parent, pos='first-child')
                    self.instance.move(Page.get_first_root_node(), pos='first-sibling')

        self.instance = Page.objects.get(

        super(PageForm, self).save(*args, **kwargs)
        return self.instance

MOVE_POSITIONS = (('above', 'above'), ('below', 'below'), ('inside', 'inside'))

class MovePageForm(forms.Form):
    page = forms.ModelChoiceField(queryset=Page.objects.all())
    target = forms.ModelChoiceField(queryset=Page.objects.all())
    position = forms.ChoiceField(choices=MOVE_POSITIONS)
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