Model concept

Rails
1

hi,actually i am doing a one web related project, i want know that in
project fetching data using model ya using query which is efficient? and
how
i am always confuse about model so hoe use model in application
efficiently .

2

Sunny B. wrote:

hi,actually i am doing a one web related project, i want know that in
project fetching data using model ya using query which is efficient? and
how
i am always confuse about model so hoe use model in application
efficiently .

It’s rough, but I think you’re asking how to use a Rails’ model
efficiently. Is that correct?

Do you have an example of a model you’ve created we can look at?

3

Daniel W. wrote:

Sunny B. wrote:

hi,actually i am doing a one web related project, i want know that in
project fetching data using model ya using query which is efficient? and
how
i am always confuse about model so hoe use model in application
efficiently .

It’s rough, but I think you’re asking how to use a Rails’ model
efficiently. Is that correct?

Do you have an example of a model you’ve created we can look at?

ya , its correct for example i am fetching photo object using model like
@album.album_photos.photos so internally it query on three table but i
can directly fetch photos on query on photo table? so which is
efficient?
if data cm from model it cached or not? explain brief.

4

Maybe you can use rails relational mapping.

example :
…

class Album < ActiveRecord
has_many :album_photos, :dependent => true
has_many :photos, :through => :album_photos

…

class Photo < ActiveRecord
has_many :album_photos, :dependent => true
has_many :albums, :through => :album_photos

…

class AlbumPhoto < ActiveRecord
belongs_to :album
belongs_to :photo

…

I hope this Trough Association matter can help your problem.

Sincerely,
Reinhart
http://teapoci.blogspot.com

5

IMPLEMENTATION :

“BEFORE”

@album.album_photos.photos

“AFTER”
@album.photos

Sincerely,
Reinhart
http://teapoci.blogspot.com