flask-admin.py

from flaskext.fungiform import Form, widgets, TextField, FileField

class Admin(object):
    
    module = Module(__name__, name='_admin', url_prefix='/_admin')
    
    def __init__(self, app=None, editables=[]):
        for editable in editables:
            self.register_editable(editable)
        self.app = self.init_app(app)
    
    def init_app(self, app):
        app.register_module(self.module)
    
    def register_editable(self, editable):
        self.module.add_url_rule('/%s/<id>' % editable.endpoint, 
            editable.endpoint, editable.markup_view)
        self.module.add_url_rule('/%s/<id>/add' % editable.endpoint, 
            editable.endpoint, editable.admin_view, methods=['GET', 'POST'])
    

class Editable(object):
    
    def __init__(self, id):
        self.id = id
        self.key = '%s-%s' % (app.config.get('ADMIN_KEY_SCOPE', 'admin-'), id)
        self.form = self.get_form()
    
    @property
    def endpoint(self):
        return self.__class__.__name__.lower()
    
    def get_form(self):
        form = type('Form', (Form, ), {'value': self.field })
        return form(action=self.get_url(), initial={'value': self.get()})
        
    def get_url(self):
        return url_for('_admin.%s' % self.endpoint, id=self.id)
    
    def push(self, value):
        g.redis.lpush(self.key, value)
    
    def get(self, index=None):
        if index is None:
            index = g.redis.llen(self.key)
        return gl.redis.lindex(self.key, index)
    
    @classmethod
    def admin_view(cls, id):
        admin = cls(id)
        if request.method == "POST" and self.form.validate():
            admin.push(form.data.get('value'))
            return jsonify(form.data)
        return self.form.as_widget()
    
    @classmethod
    def markup_view(cls, id):
        admin = cls(id)
        return Markup(admin.to_markup())
    
    def to_storage(self, value):
        raise NotImplemented
    
    def to_markup(self, value):
        raise NotImplemented
    
    def render(self):
        pass # TODO use html_builder to construct admin chrome
    
    def __call__(self, **attrs):
        caller = attrs.pop('caller', None)
        if caller is None:
            content = ""
        else:
            content = caller()
        return self.render(content)


class img(Editable):
    def to_storage(self, value):
        pass
    
class span(Editable):
    pass

class p(Editable):
    pass