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.Tony.

2007-Sep-13 03:12 UTC

enum? polymorphic?

hi

I have two tables namely, liquids and unit,

 in unit there is :name,:string which store various unit, e.g. L mL Sv
mm

 in liquids, there are
 :liquidA, :integer
 :liquidAunit, :string
 :liquidB, :integer
 :liquidBunit, :string

 how should I define the relation between the two table, so that
liquid will display the unit name of A and B respectively


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Ivor Paul

2007-Sep-13 04:15 UTC

head link

Re: enum? polymorphic?

Can a liquid have more than one unit?

if not it is simple

liquid belongs_to :unit
with a unit_id in the table, instead of the :liquidAunit, :string

On 9/13/07, .Tony. <thetonyest-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:>
>
> hi
>
> I have two tables namely, liquids and unit,
>
> in unit there is :name,:string which store various unit, e.g. L mL Sv
> mm
>
> in liquids, there are
> :liquidA, :integer
> :liquidAunit, :string
> :liquidB, :integer
> :liquidBunit, :string
>
> how should I define the relation between the two table, so that
> liquid will display the unit name of A and B respectively
>
>
> >
>
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.Tony.

2007-Sep-13 04:18 UTC

head link

Re: enum? polymorphic?

in a liquid table , there are many liquid and each liquid has one
unit.

On Sep 13, 12:15 pm, "Ivor Paul"
<ivorp...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> Can a liquid have more than one unit?
>
> if not it is simple
>
> liquid belongs_to :unit
> with a unit_id in the table, instead of the :liquidAunit, :string
>
> On 9/13/07, .Tony.
<thetony...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
>
>
> > hi
>
> > I have two tables namely, liquids and unit,
>
> > in unit there is :name,:string which store various unit, e.g. L mL Sv
> > mm
>
> > in liquids, there are
> > :liquidA, :integer
> > :liquidAunit, :string
> > :liquidB, :integer
> > :liquidBunit, :string
>
> > how should I define the relation between the two table, so that
> > liquid will display the unit name of A and B respectively

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.Tony.

2007-Sep-13 04:55 UTC

head link

Re: enum? polymorphic?

Thank you Paul.
I have achieve what I want by following http://ruby.about.com/b/a/000069.htm



On Sep 13, 12:18 pm, ".Tony."
<thetony...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> in a liquid table , there are many liquid and each liquid has one
> unit.
>
> On Sep 13, 12:15 pm, "Ivor Paul"
<ivorp...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > Can a liquid have more than one unit?
>
> > if not it is simple
>
> > liquid belongs_to :unit
> > with a unit_id in the table, instead of the :liquidAunit, :string
>
> > On 9/13/07, .Tony.
<thetony...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > > hi
>
> > > I have two tables namely, liquids and unit,
>
> > > in unit there is :name,:string which store various unit, e.g. L
mL Sv
> > > mm
>
> > > in liquids, there are
> > > :liquidA, :integer
> > > :liquidAunit, :string
> > > :liquidB, :integer
> > > :liquidBunit, :string
>
> > > how should I define the relation between the two table, so that
> > > liquid will display the unit name of A and B respectively

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Ivor Paul

2007-Sep-13 06:13 UTC

head link

Re: enum? polymorphic?

Great!

Can you please paste your association? I would like to see how you solved it
and make sure I understood your initial requirement.

regards
Ivor

On 9/13/07, .Tony. <thetonyest-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:>
>
> Thank you Paul.
> I have achieve what I want by following
> http://ruby.about.com/b/a/000069.htm
>
>
>
> On Sep 13, 12:18 pm, ".Tony."
<thetony...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > in a liquid table , there are many liquid and each liquid has one
> > unit.
> >
> > On Sep 13, 12:15 pm, "Ivor Paul"
<ivorp...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >
> > > Can a liquid have more than one unit?
> >
> > > if not it is simple
> >
> > > liquid belongs_to :unit
> > > with a unit_id in the table, instead of the :liquidAunit, :string
> >
> > > On 9/13/07, .Tony.
<thetony...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >
> > > > hi
> >
> > > > I have two tables namely, liquids and unit,
> >
> > > > in unit there is :name,:string which store various unit,
e.g. L mL
> Sv
> > > > mm
> >
> > > > in liquids, there are
> > > > :liquidA, :integer
> > > > :liquidAunit, :string
> > > > :liquidB, :integer
> > > > :liquidBunit, :string
> >
> > > > how should I define the relation between the two table, so
that
> > > > liquid will display the unit name of A and B respectively
>
>
> >
>
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.Tony.

2007-Sep-13 06:44 UTC

head link

Re: enum? polymorphic?

I have followed exactly the example in
http://ruby.about.com/b/a/000069.htm

And I am using Activescaffold.

The field has been reconfig as follow

class CustomerController < ApplicationController
   active_scaffold :customer do |config|
     config.columns[:billing_address].ui_type = :select
     config.columns[:shipping_address].ui_type = :select
    end

     layout ''activescaffold''
end

So in my real implementation,
Customer => liquid
Address =>  unit

On Sep 13, 2:13 pm, "Ivor Paul"
<ivorp...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> Great!
>
> Can you please paste your association? I would like to see how you solved
it
> and make sure I understood your initial requirement.
>
> regards
> Ivor
>
> On 9/13/07, .Tony.
<thetony...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
>
>
> > Thank you Paul.
> > I have achieve what I want by following
> >http://ruby.about.com/b/a/000069.htm
>
> > On Sep 13, 12:18 pm, ".Tony."
<thetony...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > > in a liquid table , there are many liquid and each liquid has one
> > > unit.
>
> > > On Sep 13, 12:15 pm, "Ivor Paul"
<ivorp...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > > > Can a liquid have more than one unit?
>
> > > > if not it is simple
>
> > > > liquid belongs_to :unit
> > > > with a unit_id in the table, instead of the :liquidAunit,
:string
>
> > > > On 9/13/07, .Tony.
<thetony...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > > > > hi
>
> > > > > I have two tables namely, liquids and unit,
>
> > > > > in unit there is :name,:string which store various
unit, e.g. L mL
> > Sv
> > > > > mm
>
> > > > > in liquids, there are
> > > > > :liquidA, :integer
> > > > > :liquidAunit, :string
> > > > > :liquidB, :integer
> > > > > :liquidBunit, :string
>
> > > > > how should I define the relation between the two table,
so that
> > > > > liquid will display the unit name of A and B
respectively

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Rails - Sep 2007 - enum? polymorphic?

enum? polymorphic?

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