[Rails] I have a has_many relationships and I want to set custom limit and offset. as well as to cou

Posted by user305270 on Stack Overflow See other posts from Stack Overflow or by user305270
Published on 2010-03-30T16:03:42Z Indexed on 2010/03/30 16:23 UTC
Read the original article Hit count: 209

Filed under:

has-many

|

offset

|

limit

|

count

|

ruby-on-rails

Hy,

My code:

@profile.images

and i would like to get only 10 images at time and with a 10 offset, like this

@profile.images(:limit => 10, :offset => 10)

and not like this

has_many :images, :limit => 10, :offset => 10

Then I would like to count in someway all the images for that profile.

@profile.count_images

Thanks (:

© Stack Overflow or respective owner

Related posts about has-many

Cakephp: Correct way to resolve hasMany - hasMany relation

as seen on Stack Overflow - Search for 'Stack Overflow'
I have three models: Company, Car, Passenger Company hasMany Cars Car hasMany Passenger These relations seem to work independetly: Car shows all Passengers and Company shows all Cars. But I cannot resolve the Company - Passenger (Show all Passengers of a Company). My controller for… >>> More
How to change Fluent NHibernate reference column name on a HasMany relationship using IHasManyConven

as seen on Stack Overflow - Search for 'Stack Overflow'
Currently I'm using Fluent NHibernate to generate my database schema, but I want the entities in a HasMany relationship to point to a different column for the reference. IE, this is what NHibernate will generate in the creation DDL: alter table `Pony` add index (Stable_ID), add constraint Ponies_Stable… >>> More
Grails - Simple hasMany Problem - How does 'save' work?

as seen on Stack Overflow - Search for 'Stack Overflow'
My problem is this: I want to create a grails domain instance, defining the 'Many' instances of another domain that it has. I have the actual source in a Google Code Project but the following should illustrate the problem. class Person { String name static hasMany[skills:Skill] static constraints… >>> More
HasMany relation inside a Join Mapping

as seen on Stack Overflow - Search for 'Stack Overflow'
So, I'm having a problem mapping in fluent nhibernate. I want to use a join mapping to flatten an intermediate table: Here's my structure: [Vehicle] VehicleId ... [DTVehicleValueRange] VehicleId DTVehicleValueRangeId AverageValue ... [DTValueRange] DTVehicleValueRangeId RangeMin RangeMax RangeValue Note… >>> More
Grails efficient hasMany-Relationship in View

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi folks, I'm saving contacts (email, mobile phone, ICQ, AIM etc.) for people like this: class Person { static hasMany = { contacts: Contact } } class Contact { String code ContactType type } class ContactType { String name } In my view, I've written some Templates for displaying… >>> More

Related posts about offset

LWJGL Voxel game, glDrawArrays

as seen on Game Development - Search for 'Game Development'
I've been learning about 3D for a couple days now. I managed to create a chunk (8x8x8). Add optimization so it only renders the active and visible blocks. Then I added so it only draws the faces which don't have a neighbor. Next what I found from online research was that it is better to use glDrawArrays… >>> More
jQuery UI sortable issue with helper offset value being same as scroll offset on FireFox only

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a problem with a jQuery UI 1.7.2 sortable list in Firefox, IE7-8 work fine. When I'm scrolled down a bit, the helper element seems to have an offset of the same height that I'm scrolled down which makes it impossible to see which item you originally started dragging. How do I fix this or work… >>> More
TCP packets larger than 4 KB don't get a reply from Linux

as seen on Server Fault - Search for 'Server Fault'
I'm running Linux 3.2.51 in a virtual machine (192.168.33.15). I'm sending Ethernet frames to it. I'm writing custom software trying to emulate a TCP peer, the other peer is Linux running in the virtual machine guest. I've noticed that TCP packets larger than about 4 KB are ignored (i.e. dropped… >>> More
Crash and Centos

as seen on Server Fault - Search for 'Server Fault'
Hello guys and girls, I've a big problem it's the second time that my server crashed. I tried to check every thing and seems correct except this /var/log/messages: May 25 20:16:11 srv1 kernel: swap_free: Bad swap offset entry 00300000 May 25 20:16:33 srv1 kernel: swap_free: Unused swap offset… >>> More
Need an excel macro to produce a formatted text file

as seen on Super User - Search for 'Super User'
I am just learning how to make macros and I found a macro that nearly does what I need it to do, which is output a text file from Excel. What I need it to do is output this in a .mhd format, which I have done, and then take all the data written in the #fnum cells and place a return after each in… >>> More