Question

i’m new to python and flask framework.

My problem is I have to make an edit page. So i need to pass all object’s exist infos into a form.
Detail:

My object have this kind of structure:

class TVChannel(Document):
    __collection__  = 'tvchannels'
    use_dot_notation = True

    structure = {
        '_id'           : basestring,
        'name'          : unicode,
        'streams'       : {
            'city1': { 
                'adapt' : basestring,
                'hds'   : basestring,
                'hls'   : basestring,
                'rtmp'  : basestring,
            },       
            'city2':  {
                'adapt' : basestring,
                'hds'   : basestring,
                'hls'   : basestring,
                'rtmp'  : basestring,
            }
        }
    }

and in the view:

channel_obj = db.TVChannel().get_id(channel_id) #load a channel's datas into an object from db
channel     = ChannelForm(request.form, obj=channel_obj) #load channel form

return render_template('channel/new.html',form=channel, channel_id=channel_id)

The channel_object’s “name” they understand and pass it like normal. But the “streams”, they did not recognize and pass it to something like this:

class ChannelForm(Form):    
    _id         = HiddenField()
    name        = TextField(_('channel name'))    
    streams = {
        'city1': { 
            'adapt' : TextField(_('stream adapt link')),
            'hds'   : TextField(_('stream hds link')),
            'hls'   : TextField(_('stream hls link')),
            'rtmp'  : TextField(_('stream rtmp link')),
        },       
        'city2':  {
            'adapt' : TextField(_('stream adapt link')),
            'hds'   : TextField(_('stream hds link')),
            'hls'   : TextField(_('stream hls link')),
            'rtmp'  : TextField(_('stream rtmp link')),
        }
    }

    submit      = SubmitField(_('Save'))

What should i do?
Or is there anyway to modify the way how object’s data passed into those parameter of the form?

Answer 1

Well found this in the documentation and i will use it for now:

in the view:

channel_obj = db.TVChannel().get_id(channel_id) #load a channel's infos into an object
channel     = ChannelForm(request.form, obj=channel_obj) #load channel form
channel.CITY1adapt.process_data(channel_obj.streams['City1']['adapt'])
#and others links

And in the form:

class ChannelForm(Form):    
    _id         = HiddenField()
    name        = TextField(_('channel name'))    
    CITY1adapt  = TextField(_('adapt link')) 
    CITY2adapt  = TextField(_('adapt link'))
    #and so on

    submit      = SubmitField(_('Save'))

Now i’m working on when i “save” them.