Thanks a lot massimo.  U r the man!
On Feb 24, 2015 10:41 AM, "Massimo DiPierro" <massimo.dipie...@gmail.com>
wrote:

> the DAL has only these API:
>
> db(query).select(….)
> db(query).update(…)
> db(query).count()
> db(query).delete()
> table.insert(…)
>
> which map into the corresponding SQL SELECT, UPDATE, COUNT, DELETE and
> INSERT.
>
> If you define a table with
>    db.define_table(‘person’,Field(‘name’))
> than you refer to it by db.person
> If you define it with
>    Person = db.define_table(‘person’,Field(‘name’))
> than you can refer to it by simply Person.
>
> other the query all the other arguments are optional.
>
>
> On Feb 24, 2015, at 7:49 AM, Abhijit Chatterjee <achatterjee...@gmail.com>
> wrote:
>
> > Hello,
> >
> > Does anyone know how to rewrite this two contoller line? After model and
> view, I am trying to get familiar with controller and I am finding when a
> code is summarized, its hard to understand at times. Wondering if someone
> can break it down for me a little?
> >
> > first def:
> >
> > (1) categories = db(db.category).select(orderby=db.category.name)
> >
> > why two dbs? can we rewrite this without the select? Is select is a
> web2py key word? I come from a MATLAB world where we define the structure
> first and then use. I don't recall I defined select to be a struct.
> >
> > (2) similarly on my second def:
> >
> > category = db.category(request.args(0))
> >
> > Now, I only see one db instead of two. Why? I understand the request
> args means where I click. Which argument is it.
> >
> > also this line,
> >
> > news = db(db.news.category == category.id).select(orderby=db.news.vote)
> >
> > Its hard to understand when lot of arguments are combined into one.
> Anyone can help break it down for me a little? Any idea about how to
> rewrite that, may be even using "if"statement without structure if possible?
> >
> >
> >
> >
> >
>
>

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