How to choose a subcategory to create a post

[Капылов Данил]

1) Post created in a particular category. - http://hostname/app/default/created_ad/<category>

2)The category tied subcategories.

How to make that SQLFORM display only radio button of equal sub categories. Not show subcategories not belong to this category.

def get_category():

    category_url_name = request.args(0)

    category = db.category(url_name=category_url_name)

    if not category:

        session.flash = 'page not fount'

        redirect(URL('index'))

    return category

def created_ad():

    category = get_category()

    db.ad_post.category.default = category.id

    form = SQLFORM(db.ad_post).process(next='view_post/[id]')

    return locals()

db.define_table('ad_post',

                Field('category', 'reference category'),

                Field('subcategory', 'reference subcategory', widget=SQLFORM.widgets.radio.widget,

                      requires=IS_IN_DB(db, db.subcategory.id, label='db.category.name')),

                Field('title', type='string', requires=IS_NOT_EMPTY()),

                Field('body', type='text', requires=IS_NOT_EMPTY()),

                auth.signature

)

[Leonel Câmara]

You need to use ajax to change the options on the subcategory.

Here's an example I did for countries->state->city where the state options depend on the country and the city options on the state

https://groups.google.com/d/msg/web2py/z_lGYsO6LKE/mDNm3DQ4DVUJ

[Fabiano Almeida]

Can you try use plugin:

http://dev.s-cubism.com/plugin_lazy_options_widget

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