What does your view look like?
What happens when there is no post for the course_id? Does your select
give a None or an empty Rows?
It appears that __getattr__ is expecting a body field, and if you don't
have one ....
(take this as a junior student piping up)
/dps
Wednesday, March 16, 2016 at 4:27:52 PM UTC-7, Nikhil Rayaprolu wrote:
>
> # view
> #show.html
> {{extend 'layout.html'}}
> <h1>{{=page.title}}</h1>
> [ {{=A('edit', _href=URL('edit', args=request.args))}} ]<br />
> {{=MARKMIN(page.body)}}
> <h2>Comments</h2>
> {{for post in comments:}}
> <p>{{=db.auth_user[post.created_by].first_name}} on
> {{=post.created_on}}
> says <i>{{=post.body}}</i></p>
> {{pass}}
> <h2>Post a comment</h2>
> {{=form}}
>
> #controller
> #default.py
> def user():
> return dict(form=auth())
> @auth.requires_login()
> def index():
> pages = db().select(db.course.id
> ,db.course.title,db.course.Instructor,orderby=db.course.title)
> return dict(pages=pages)
> @auth.requires_login()
> def createcourse():
> """creates a new empty wiki page"""
> form = SQLFORM(db.course).process(next=URL('index'))
> return dict(form=form)
> def show():
> """shows a wiki page"""
> this_page = db.course(request.args(0,cast=int)) or
> redirect(URL('index'))
> db.post.course_id.default = this_page.id
> form = SQLFORM(db.post).process() if auth.user else None
> pagecomments = db(db.post.course_id==this_page.id).select()
> return dict(page=this_page, comments=pagecomments, form=form)
>
> #model
> #db.py
> db = DAL("sqlite://storage.sqlite")
> from gluon.tools import Auth
> auth = Auth(db)
> auth.define_tables(username=True)
> db.define_table('course',
> Field('title', unique=True),
> Field('Instructor','text', unique=True),
> Field('Dateofcoursecreation','datetime'),
> Field('Courseid'),
> format = '%(title)s')
>
> db.define_table('post',
> Field('course_id'),
> Field('body', 'text'),
> Field('created_on', 'datetime', default=request.now),
> Field('created_by', 'reference auth_user', default=auth.user_id))
>
> #ticket issued
>
> Error ticket for "courseapp"
> Ticket ID
>
> 127.0.0.1.2016-03-16.20-55-17.d72cc1b2-28ab-4aea-be40-a372034830a5
> <type 'exceptions.AttributeError'>
> Version
> web2py™ Version 2.13.4-stable+timestamp.2015.12.26.04.59.39
> Python Python 2.7.6: /usr/bin/python (prefix: /usr)
> Traceback
>
> 1.
> 2.
> 3.
> 4.
> 5.
> 6.
> 7.
> 8.
>
>
>
> Traceback (most recent call last):
> File "/home/nikhil/Downloads/web2py/gluon/restricted.py", line 227, in
> restricted
> exec ccode in environment
> File
> "/home/nikhil/Downloads/web2py/applications/courseapp/views/default/show.html",
>
> line 79, in <module>
> File
> "/home/nikhil/Downloads/web2py/gluon/packages/dal/pydal/objects.py", line
> 90, in __getattr__
> raise AttributeError
> AttributeError
>
> Error snapshot help
>
> <type 'exceptions.AttributeError'>()
>
> inspect attributes
> Frames
>
> File /home/nikhil/Downloads/web2py/gluon/restricted.py in restricted
> at line 227 code arguments variables
>
> File
> /home/nikhil/Downloads/web2py/applications/courseapp/views/default/show.html
> in <module> at line 79 code arguments variables
>
> File /home/nikhil/Downloads/web2py/gluon/packages/dal/pydal/objects.py
> in __getattr__ at line 90 code arguments variables
> Function argument list
>
> (self=<Row {'title': 'maths', 'Dateofcoursecreation': ...
> 'Instructor': 'indranil chakrabarty', 'id': 1L}>, k='body')
> Code listing
>
> 85.
> 86.
> 87.
> 88.
> 89.
> 90.
>
> 91.
> 92.
> 93.
> 94.
>
>
>
>
> def __getattr__(self, k):
> try:
> return self.__getitem__(k)
> except KeyError:
> raise AttributeError
>
>
> def __copy__(self):
> return Row(self)
>
> Variables
> builtinAttributeError <type 'exceptions.AttributeError'>
>
>
> please can any one say me where is the mistake.
>
--
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