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Reinier Ladan

2007-May-17 12:00 UTC

Simple thing in PHP, a braincracker for me in Ruby

Hi,

I have a PHP background, and learning Ruby is great fun. I want to
build a mini app that I already have in PHP to Ruby. It''s a personal
planner, where I plan days (the days are chopped in three pieces 09:00
- 12:00, 13:00 - 18:00 and 20:00 - 22:00)

I want to make an Array or Hash (what do you advise?) that looks like this:

my_data = {
    ''2007'' => {

        ''21'' => {
            ''mo'' => {
                ''0'' => ''This is my
description'',
                ''1'' => ''This is my other
description'',
                ''2'' => ''Another
description''
            },

            ''fr'' => {
                ''0'' => ''Friday I\''m in
love!''
            }
        },

        ''22'' => {
            ''mo'' => {
                ''0'' => ''This is my
description'',
                ''1'' => ''This is my other
description'',
                ''2'' => ''Another
description''
            },

            ''fr'' => {
                ''0'' => ''Friday I\''m in
love!''
            }
        }

    },

    ''2008'' => {

        ''1'' => {

        }

    }

}

This is what I have from my database:

rb: @chunks = Chunk.find(:all)

I have this in @chunks:
- !ruby/object:Chunk
  attributes:
    part: "0"
    week: "21"
    id: "1"
    description: naar school
    day: ma
    year: "2007"
- !ruby/object:Chunk
  attributes:
    part: "1"
    week: "21"
    id: "2"
    description: naar school
    day: ma
    year: "2007"
- !ruby/object:Chunk
  attributes:
    part: "0"
    week: "21"
    id: "3"
    description: NTU
    day: vr
    year: "2007"
- !ruby/object:Chunk
  attributes:
    part: "0"
    week: "22"
    id: "4"
    description: Pinksteren
    day: ma
    year: "2007"
- !ruby/object:Chunk
  attributes:
    part: "1"
    week: "22"
    id: "5"
    description: Pinksteren
    day: ma
    year: "2007"
- !ruby/object:Chunk
  attributes:
    part: "2"
    week: "22"
    id: "6"
    description: Pinksteren
    day: ma
    year: "2007"
- !ruby/object:Chunk
  attributes:
    part: "1"
    week: "21"
    id: "7"
    description: NTU
    day: vr
    year: "2007"

===
explanation:

    part = part of the day
    week = weeknumber
    id = id of the record
    description = the description
    day: day of the week
    year = year

So how do I get the information from the database so that I can easily
loopm trough it in my view? This is how i''ve done it in PHP:

 if(is_array($chunk)){
        foreach($chunk as $row){
           
$aData[$row[''year'']][$row[''week'']][$row[''day'']][$row[''part'']][''description'']
= $row[''omschrijving''];
           
$aData[$row[''year'']][$row[''week'']][$row[''day'']][$row[''part'']][''id'']
= $row[''id''];
        }
    }

How can I accomplish that in Ruby?

-- 
Met vriendelijke groet,

Reinier Ladan
Digital Energy BV
W: www.digitalenergy.nl
T: +31624872725
E: reinier-eFwX6J65rk81SCDwVaL6kg@public.gmane.org
Zin in een enorme lading web 2.0? Check uwbatterij.nl

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Yuri Leikind

2007-May-17 13:35 UTC

head link

Re: Simple thing in PHP, a braincracker for me in Ruby

Dag!

I really don''t see a point in taking your array of Chunk objects and
transforming in to some other deep Array/Hash structure when you have
object. (This is very PHPish :-)

You can get them in the right order
   @chunks = Chunk.find(:all, :order => ''field1 asc, field2
desc'')

and the iterate it in your view:

<% @chunks.each{|chunk| %>

   <%= chunk.week%>
   <%= chunk.whatever%>

<% } %>

Gemakellijk.  Or haven''t I understood you correctly?

Cheers,
Yuri


On 5/17/07, Reinier Ladan
<reinierl-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:>
> Hi,
>
> I have a PHP background, and learning Ruby is great fun. I want to
> build a mini app that I already have in PHP to Ruby. It''s a
personal
> planner, where I plan days (the days are chopped in three pieces 09:00
> - 12:00, 13:00 - 18:00 and 20:00 - 22:00)
>
> I want to make an Array or Hash (what do you advise?) that looks like this:
>
> my_data = {
>     ''2007'' => {
>
>         ''21'' => {
>             ''mo'' => {
>                 ''0'' => ''This is my
description'',
>                 ''1'' => ''This is my other
description'',
>                 ''2'' => ''Another
description''
>             },
>
>             ''fr'' => {
>                 ''0'' => ''Friday I\''m
in love!''
>             }
>         },
>
>         ''22'' => {
>             ''mo'' => {
>                 ''0'' => ''This is my
description'',
>                 ''1'' => ''This is my other
description'',
>                 ''2'' => ''Another
description''
>             },
>
>             ''fr'' => {
>                 ''0'' => ''Friday I\''m
in love!''
>             }
>         }
>
>     },
>
>     ''2008'' => {
>
>         ''1'' => {
>
>         }
>
>     }
>
> }
>
> This is what I have from my database:
>
> rb: @chunks = Chunk.find(:all)
>
> I have this in @chunks:
> - !ruby/object:Chunk
>   attributes:
>     part: "0"
>     week: "21"
>     id: "1"
>     description: naar school
>     day: ma
>     year: "2007"
> - !ruby/object:Chunk
>   attributes:
>     part: "1"
>     week: "21"
>     id: "2"
>     description: naar school
>     day: ma
>     year: "2007"
> - !ruby/object:Chunk
>   attributes:
>     part: "0"
>     week: "21"
>     id: "3"
>     description: NTU
>     day: vr
>     year: "2007"
> - !ruby/object:Chunk
>   attributes:
>     part: "0"
>     week: "22"
>     id: "4"
>     description: Pinksteren
>     day: ma
>     year: "2007"
> - !ruby/object:Chunk
>   attributes:
>     part: "1"
>     week: "22"
>     id: "5"
>     description: Pinksteren
>     day: ma
>     year: "2007"
> - !ruby/object:Chunk
>   attributes:
>     part: "2"
>     week: "22"
>     id: "6"
>     description: Pinksteren
>     day: ma
>     year: "2007"
> - !ruby/object:Chunk
>   attributes:
>     part: "1"
>     week: "21"
>     id: "7"
>     description: NTU
>     day: vr
>     year: "2007"
>
> ===>
> explanation:
>
>     part = part of the day
>     week = weeknumber
>     id = id of the record
>     description = the description
>     day: day of the week
>     year = year
>
> So how do I get the information from the database so that I can easily
> loopm trough it in my view? This is how i''ve done it in PHP:
>
>  if(is_array($chunk)){
>         foreach($chunk as $row){
>            
$aData[$row[''year'']][$row[''week'']][$row[''day'']][$row[''part'']][''description'']
> = $row[''omschrijving''];
>            
$aData[$row[''year'']][$row[''week'']][$row[''day'']][$row[''part'']][''id'']
> = $row[''id''];
>         }
>     }
>
> How can I accomplish that in Ruby?
>
> --
> Met vriendelijke groet,
>
> Reinier Ladan
> Digital Energy BV
> W: www.digitalenergy.nl
> T: +31624872725
> E: reinier-eFwX6J65rk81SCDwVaL6kg@public.gmane.org
> Zin in een enorme lading web 2.0? Check uwbatterij.nl
>
> >
>

-- 
Best regards,
Yuri Leikind

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rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
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Reinier Ladan

2007-May-17 14:13 UTC

head link

Re: Simple thing in PHP, a braincracker for me in Ruby

Hoi,

Well, I want to make tables for every week with it, ordered bij year
and week. Fot that, I have to loop trough all the available years,
within the year loop trought the available weeks, and within the week
loop trough days and parts of days.

I don''t see a simple way to do that with the object I already have.
Maybe I''m thinking too hard about it, my brain is stuck in PHP :-)

-- 
Met vriendelijke groet,

Reinier Ladan
Digital Energy BV
W: www.digitalenergy.nl
T: +31624872725
E: reinier-eFwX6J65rk81SCDwVaL6kg@public.gmane.org
Zin in een enorme lading web 2.0? Check uwbatterij.nl

On 5/17/07, Yuri Leikind
<yuri.leikind-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:>
> Dag!
>
> I really don''t see a point in taking your array of Chunk objects
and
> transforming in to some other deep Array/Hash structure when you have
> object. (This is very PHPish :-)
>
> You can get them in the right order
>    @chunks = Chunk.find(:all, :order => ''field1 asc, field2
desc'')
>
> and the iterate it in your view:
>
> <% @chunks.each{|chunk| %>
>
>    <%= chunk.week%>
>    <%= chunk.whatever%>
>
> <% } %>
>
> Gemakellijk.  Or haven''t I understood you correctly?
>
> Cheers,
> Yuri
>
>
> On 5/17/07, Reinier Ladan
<reinierl-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >
> > Hi,
> >
> > I have a PHP background, and learning Ruby is great fun. I want to
> > build a mini app that I already have in PHP to Ruby. It''s a
personal
> > planner, where I plan days (the days are chopped in three pieces 09:00
> > - 12:00, 13:00 - 18:00 and 20:00 - 22:00)
> >
> > I want to make an Array or Hash (what do you advise?) that looks like
this:
> >
> > my_data = {
> >     ''2007'' => {
> >
> >         ''21'' => {
> >             ''mo'' => {
> >                 ''0'' => ''This is my
description'',
> >                 ''1'' => ''This is my other
description'',
> >                 ''2'' => ''Another
description''
> >             },
> >
> >             ''fr'' => {
> >                 ''0'' => ''Friday
I\''m in love!''
> >             }
> >         },
> >
> >         ''22'' => {
> >             ''mo'' => {
> >                 ''0'' => ''This is my
description'',
> >                 ''1'' => ''This is my other
description'',
> >                 ''2'' => ''Another
description''
> >             },
> >
> >             ''fr'' => {
> >                 ''0'' => ''Friday
I\''m in love!''
> >             }
> >         }
> >
> >     },
> >
> >     ''2008'' => {
> >
> >         ''1'' => {
> >
> >         }
> >
> >     }
> >
> > }
> >
> > This is what I have from my database:
> >
> > rb: @chunks = Chunk.find(:all)
> >
> > I have this in @chunks:
> > - !ruby/object:Chunk
> >   attributes:
> >     part: "0"
> >     week: "21"
> >     id: "1"
> >     description: naar school
> >     day: ma
> >     year: "2007"
> > - !ruby/object:Chunk
> >   attributes:
> >     part: "1"
> >     week: "21"
> >     id: "2"
> >     description: naar school
> >     day: ma
> >     year: "2007"
> > - !ruby/object:Chunk
> >   attributes:
> >     part: "0"
> >     week: "21"
> >     id: "3"
> >     description: NTU
> >     day: vr
> >     year: "2007"
> > - !ruby/object:Chunk
> >   attributes:
> >     part: "0"
> >     week: "22"
> >     id: "4"
> >     description: Pinksteren
> >     day: ma
> >     year: "2007"
> > - !ruby/object:Chunk
> >   attributes:
> >     part: "1"
> >     week: "22"
> >     id: "5"
> >     description: Pinksteren
> >     day: ma
> >     year: "2007"
> > - !ruby/object:Chunk
> >   attributes:
> >     part: "2"
> >     week: "22"
> >     id: "6"
> >     description: Pinksteren
> >     day: ma
> >     year: "2007"
> > - !ruby/object:Chunk
> >   attributes:
> >     part: "1"
> >     week: "21"
> >     id: "7"
> >     description: NTU
> >     day: vr
> >     year: "2007"
> >
> > ===> >
> > explanation:
> >
> >     part = part of the day
> >     week = weeknumber
> >     id = id of the record
> >     description = the description
> >     day: day of the week
> >     year = year
> >
> > So how do I get the information from the database so that I can easily
> > loopm trough it in my view? This is how i''ve done it in PHP:
> >
> >  if(is_array($chunk)){
> >         foreach($chunk as $row){
> >            
$aData[$row[''year'']][$row[''week'']][$row[''day'']][$row[''part'']][''description'']
> > = $row[''omschrijving''];
> >            
$aData[$row[''year'']][$row[''week'']][$row[''day'']][$row[''part'']][''id'']
> > = $row[''id''];
> >         }
> >     }
> >
> > How can I accomplish that in Ruby?
> >
> > --
> > Met vriendelijke groet,
> >
> > Reinier Ladan
> > Digital Energy BV
> > W: www.digitalenergy.nl
> > T: +31624872725
> > E: reinier-eFwX6J65rk81SCDwVaL6kg@public.gmane.org
> > Zin in een enorme lading web 2.0? Check uwbatterij.nl
> >
> > >
> >
>
>
> --
> Best regards,
> Yuri Leikind
>
> >
>
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Yuri Leikind

2007-May-17 18:04 UTC

head link

Re: Simple thing in PHP, a braincracker for me in Ruby

Hoi,

Then you are right, you can use hashes and arrays as one of possible
variants. Just store your ActiveRecord objects as leaves of this
structure, not strings and integers.

If you were to just group the objects by year or any other single
attribute, it could be really easy in Rails:

chunks = Chunk.find(:all)

chunk_table = chunks.group_by(&:year)

:year here is an attribute of a Chunk object, the result of this
shortcut is a hash where keys are unique year values, and values are
arrays of Chunk objects with this year value.

Cool, isn''t it? :)

But yes, in you case you probably need a hash of hashes, something like this:

table = Hash.new
@chunks.each{|chunk|
    table[chunk.year] = Hash.new unless table.has_key? chunk.year
    table[chunk.year][chunk.week] = Array.new unless
table[chunk.year].has_key? chunk.week

    table[chunk.year][chunk.week]  << chunk
}

The result is a hash of hashes of arrays of Chunk objects
This is just an example for you to build on. And I think there are
other variants.

Groeten,
Yuri

On 5/17/07, Reinier Ladan
<reinierl-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:>
> Hoi,
>
> Well, I want to make tables for every week with it, ordered bij year
> and week. Fot that, I have to loop trough all the available years,
> within the year loop trought the available weeks, and within the week
> loop trough days and parts of days.
>
> I don''t see a simple way to do that with the object I already
have.
> Maybe I''m thinking too hard about it, my brain is stuck in PHP :-)
>
> --
> Met vriendelijke groet,
>
> Reinier Ladan
> Digital Energy BV
> W: www.digitalenergy.nl
> T: +31624872725
> E: reinier-eFwX6J65rk81SCDwVaL6kg@public.gmane.org
> Zin in een enorme lading web 2.0? Check uwbatterij.nl
>
> On 5/17/07, Yuri Leikind
<yuri.leikind-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >
> > Dag!
> >
> > I really don''t see a point in taking your array of Chunk
objects and
> > transforming in to some other deep Array/Hash structure when you have
> > object. (This is very PHPish :-)
> >
> > You can get them in the right order
> >    @chunks = Chunk.find(:all, :order => ''field1 asc,
field2 desc'')
> >
> > and the iterate it in your view:
> >
> > <% @chunks.each{|chunk| %>
> >
> >    <%= chunk.week%>
> >    <%= chunk.whatever%>
> >
> > <% } %>
> >
> > Gemakellijk.  Or haven''t I understood you correctly?
> >
> > Cheers,
> > Yuri
> >
> >
> > On 5/17/07, Reinier Ladan
<reinierl-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > >
> > > Hi,
> > >
> > > I have a PHP background, and learning Ruby is great fun. I want
to
> > > build a mini app that I already have in PHP to Ruby.
It''s a personal
> > > planner, where I plan days (the days are chopped in three pieces
09:00
> > > - 12:00, 13:00 - 18:00 and 20:00 - 22:00)
> > >
> > > I want to make an Array or Hash (what do you advise?) that looks
like this:
> > >
> > > my_data = {
> > >     ''2007'' => {
> > >
> > >         ''21'' => {
> > >             ''mo'' => {
> > >                 ''0'' => ''This is my
description'',
> > >                 ''1'' => ''This is my
other description'',
> > >                 ''2'' => ''Another
description''
> > >             },
> > >
> > >             ''fr'' => {
> > >                 ''0'' => ''Friday
I\''m in love!''
> > >             }
> > >         },
> > >
> > >         ''22'' => {
> > >             ''mo'' => {
> > >                 ''0'' => ''This is my
description'',
> > >                 ''1'' => ''This is my
other description'',
> > >                 ''2'' => ''Another
description''
> > >             },
> > >
> > >             ''fr'' => {
> > >                 ''0'' => ''Friday
I\''m in love!''
> > >             }
> > >         }
> > >
> > >     },
> > >
> > >     ''2008'' => {
> > >
> > >         ''1'' => {
> > >
> > >         }
> > >
> > >     }
> > >
> > > }
> > >
> > > This is what I have from my database:
> > >
> > > rb: @chunks = Chunk.find(:all)
> > >
> > > I have this in @chunks:
> > > - !ruby/object:Chunk
> > >   attributes:
> > >     part: "0"
> > >     week: "21"
> > >     id: "1"
> > >     description: naar school
> > >     day: ma
> > >     year: "2007"
> > > - !ruby/object:Chunk
> > >   attributes:
> > >     part: "1"
> > >     week: "21"
> > >     id: "2"
> > >     description: naar school
> > >     day: ma
> > >     year: "2007"
> > > - !ruby/object:Chunk
> > >   attributes:
> > >     part: "0"
> > >     week: "21"
> > >     id: "3"
> > >     description: NTU
> > >     day: vr
> > >     year: "2007"
> > > - !ruby/object:Chunk
> > >   attributes:
> > >     part: "0"
> > >     week: "22"
> > >     id: "4"
> > >     description: Pinksteren
> > >     day: ma
> > >     year: "2007"
> > > - !ruby/object:Chunk
> > >   attributes:
> > >     part: "1"
> > >     week: "22"
> > >     id: "5"
> > >     description: Pinksteren
> > >     day: ma
> > >     year: "2007"
> > > - !ruby/object:Chunk
> > >   attributes:
> > >     part: "2"
> > >     week: "22"
> > >     id: "6"
> > >     description: Pinksteren
> > >     day: ma
> > >     year: "2007"
> > > - !ruby/object:Chunk
> > >   attributes:
> > >     part: "1"
> > >     week: "21"
> > >     id: "7"
> > >     description: NTU
> > >     day: vr
> > >     year: "2007"
> > >
> > > ===> > >
> > > explanation:
> > >
> > >     part = part of the day
> > >     week = weeknumber
> > >     id = id of the record
> > >     description = the description
> > >     day: day of the week
> > >     year = year
> > >
> > > So how do I get the information from the database so that I can
easily
> > > loopm trough it in my view? This is how i''ve done it in
PHP:
> > >
> > >  if(is_array($chunk)){
> > >         foreach($chunk as $row){
> > >            
$aData[$row[''year'']][$row[''week'']][$row[''day'']][$row[''part'']][''description'']
> > > = $row[''omschrijving''];
> > >            
$aData[$row[''year'']][$row[''week'']][$row[''day'']][$row[''part'']][''id'']
> > > = $row[''id''];
> > >         }
> > >     }
> > >
> > > How can I accomplish that in Ruby?
> > >
> > > --
> > > Met vriendelijke groet,
> > >
> > > Reinier Ladan
> > > Digital Energy BV
> > > W: www.digitalenergy.nl
> > > T: +31624872725
> > > E: reinier-eFwX6J65rk81SCDwVaL6kg@public.gmane.org
> > > Zin in een enorme lading web 2.0? Check uwbatterij.nl
> > >
> > > >
> > >
> >
> >
> > --
> > Best regards,
> > Yuri Leikind
> >
> > >
> >
>
> >
>

-- 
Best regards,
Yuri Leikind

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Yuri Leikind

2007-May-17 18:07 UTC

head link

Re: Simple thing in PHP, a braincracker for me in Ruby

> chunk_table = chunks.group_by(&:year)
>I really meant  index_by here, not group_by

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Rails - May 2007 - Simple thing in PHP, a braincracker for me in Ruby

Simple thing in PHP, a braincracker for me in Ruby

Re: Simple thing in PHP, a braincracker for me in Ruby

Re: Simple thing in PHP, a braincracker for me in Ruby

Re: Simple thing in PHP, a braincracker for me in Ruby

Re: Simple thing in PHP, a braincracker for me in Ruby