[web2py] How to map multiple 'tags' to a 'blog'

[Abhiteja]

Hi Gurus,

I want to map multiple tags to a blog and allow users to select
predefined tags to a blog header.
I am able to see form for blogs and no errors shown after submit , but
nothing is entered to DB.

Am I missing something, please help me out.

Thanks & regards

Abhiteja

PS: My setup info
------------- I have following db definition: --------------

db.define_table('tags',
   Field('name')
  )

db.define_table ('blog',
    Field('heading'),
    Field('description' ,'text'),
    Field('tags', db.tags)
  )

db.blogs.tags.requires = IS_IN_DB(db, 'tags.id', 'tags.name',
multiple=True)

----------- Here is the controller definition for blogs: ----------
def blogs():

    form = SQLFORM(db.blogs)

#    if form.accepts(request.vars, session):
#        response.flash = 'new song addded'


    records = SQLTABLE(db().select(db.blogs.ALL))
    return dict(form=form, records=records)