Hi John, One step at a time, looking at your database model, how does 'copies' relate to a book ? You are missing a foreign key reference. Are there any other attributes that a copy may have ?
On Saturday, May 24, 2014 7:30:35 AM UTC+10, john smith wrote: > > I'm trying to create library system and have a little problem. Here's my > current model: > db.define_table('tags', > Field('name'),format='%(name)s') > db.define_table('copies', > Field('is_active','boolean',default=True)) > > db.define_table('book', > Field('title',requires=IS_NOT_EMPTY(), label='Tytuł'), > Field('author', requires=IS_NOT_EMPTY(), label='Autor'), > Field('isbn', 'integer', requires=IS_LENGTH(13), label='ISBN'), > Field('release_year', 'integer', requires=IS_INT_IN_RANGE(-3000, > request.utcnow.year+1), label='Rok wydania'), > Field('format', label='Format'), > Field('cover', 'upload', requires = IS_EMPTY_OR(IS_IMAGE()), > label='Okładka'), > Field('publisher', label='Wydawca'), > Field('tags', 'list:reference tags', label='Tagi'), > Field('copies', db.copies), > auth.signature) > > db.book.tags.widget = SQLFORM.widgets.checkboxes.widget > > Here is what I want to achieve: when a user adds new 'book' table record, > he types number of copies of that book and that amount of records is > automatically created in 'copies' table. Then a user will be able to loan a > specific copy of a book (i will probably be able to figure this part out > thanks to library example) but only for specific period. If you have other > ideas on how to solve my problem, please share. > Also less important but i would like to change the style of my tags > widget, so it would display either set number of tags per row or just > display maximum number that will fit in screen. > Thanks in advance for all replies. > -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.