Displaying 20 results from an estimated 12000 matches similar to: "Sort model based on max value of has_many field"
2006 Jan 23
15
Looking for DB/Model Design Suggestions
Hi,
I''m working on an app - my first Rails - and am looking for some
suggestions on the best way (or good way) to set up my models / DB. In
general there are teams and matches; a team will participate in multiple
matches, and in each match there will be 6 teams - 3 vs. 3.
I''m going to want to be able, for a particular team, pull up all matches
for that team, to display a
2006 Jan 31
1
Updating :has_many - :through related items
Hi,
I''ve got my little app working pretty well. I''m using pretty much the
model and table layout from my previous thread, as suggested by Bill
Katz:
<http://www.ruby-forum.com/topic/52506#26260>
I have the Create page working and a delete Match page working, which
along with the appropriate record in the Matches table, removes the
linked items in the competitions table.
2009 Jul 29
5
[newbie] double relationships in database
I have the following tables
teams
id :string
name :string
and
matches
id:
home_team :team_id
visitor_team :team_id
how can I reflect that kind of relationship in a RoR model?
thanks and keep up the good work.
2009 Jul 17
19
I need help saving table data from a rake task
I need to find out how I can create and save a large dataset to a table
based on multiple returned arrays from a Rake task.
Here is my example using just two arrays (there are 14 in this
particular rake task):
update_tsos_offense = TsosOffense.new
to_team_id, to_ppcs = update_tsos_offense.calculate_tsos(TotalOffense,
"ydspgm", "desc")
ro_team_id, ro_ppcs =
2006 Jul 28
2
has_many :through with multiple paths
Hi all.
I am currently thinking about how to do the following:
I have the following models.
Team
Person
Team has various positions (manager, programmer etc.) I would like each
one of those positions to reference one or more Person records. A single
Person record could be on 6 different teams at the same time in
different roles. the same person could even be on the same team multiple
times
2009 Jun 25
7
Join Tables
I just have a few questions about join tables. From my understanding
the following applies (correct me if I''m wrong):
1.Join tables are always named with the names of the two associated
tables, in alphabetical order, separated by an underscore.
2.The foreign key fields are named with the name of the table they are
referencing, with _id appended.
3.The foreign key is referencing a
2006 Jul 26
8
team captain - habtm w/has_one...
the below...
class User < ActiveRecord::Base
has_and_belongs_to_many :teams
class Team < ActiveRecord::Base
has_and_belongs_to_many :users
has_one :captain, :class_name => ''User''
produces the error...
Mysql::Error: Unknown column ''users.team_id'' in ''where clause'': SELECT *
FROM users WHERE (users.team_id = 1) LIMIT 1
i
2008 Jan 27
4
(REST) Nested routes
Hello, I''m in troubles with nested routes. I have three models: Team,
Tournament and TeamTournaments
class Team < ActiveRecord::Base
has_many :tournaments, :through => :team_tournaments
has_many :team_tournaments
class TeamTournament < ActiveRecord::Base
belongs_to :team, :foreign_key => ''team_id''
belongs_to :tournament, :class_name =>
2006 Apr 03
2
HABTM migrations
Bad rails day for Matt-
In a migration, for a habtm:
create_table :teams_users do |t|
t.column :team_id, :integer
t.column :user_id, :integer
end
Ok, fine. In a controller (well really a migration script):
@user.teams << Team.find( 3 )
And the SQL pumped at my server is:
INSERT INTO teams_users (`team_id`, `id`, `user_id`) VALUES (3, 3, 34)
Which
2005 Dec 31
6
habtm recursion via destroy_without_callbacks
I am having a problem with two models that each have a HABTM
relationship to the other. For example:
CREATE TABLE people (id INT, name TEXT);
CREATE TABLE teams (id INT, name TEXT);
CREATE TABLE people_teams (person_id INT, team_id INT);
The person model has:
has_and_belongs_to_many :teams
And the team model has:
has_and_belongs_to_many :people
The trouble comes when trying to destroy
2006 May 14
3
Strange Database Mapping Question
Dear Rails List,
I am new on the list so will assume straight away that this question has been
answered before. As I can see no immediate way of searching the list, I will
ask the question. I apologize in advance for any disruption this may cause.
Question time:
I am trying to write a web application for the staff at my office to play a
form of virtual Super14. Its a bit like any of the
2004 Jan 06
2
How to flash hook when there is no hook ?
Hi all,
I'm using regular analog phones with * and an ATA186, and I plan to move
to cordless phones. But cordless phones usually have no way to flash
hook cause there is no hook :-)
I seem to recall there is a way to simulate a flash hook using dtmf
tones in *, but I can't find which combination to use.
More generally, where can I find all those magic cominations to put
people on hold,
2006 Apr 16
1
Design question: Years/Teams/Students
People,
I want to design a historical sports db for my old school. I think at
the moment it should be like:
A year has many teams
A team has many students
A student has one lastname, firstname and middlename
but a student can also have many teams (eg summer/winter abd over a
number of years) . .
Is there a problem with this? Doesn''t it just mean that there will be a
student table
2010 Jan 25
0
has_many, :finder_sql, setting attributes
Hi all,
My question is somewhat complicated, but bear with me. My project has a
number of models: User, Program, and Team. Users belong to multiple
Programs. Programs have multiple teams, but Teams belong to one
program. For each Program a User belongs to, he can belong to multiple
Teams. (Think of this in an athletic context where users are athletes,
programs are universities). So my
2009 Dec 14
2
Combinations
Dear R helpers,
I am working on the scenario analysis pertaining to various interest rates. In this connection I need to form the various combinations as under :
Suppose I have two sets A = (a, b, c) and B = (x,y,z)
Then I can easily form the cominations as
(ax, ay, az, bx, by, bz, cx, cy, cz)
However, if I have say 5 variables, then total no of possible combinations will be 3^5 = 243.
2011 Nov 30
1
All combinations
Dear all,
I would like something simple to do in R that I do not know how I should search for it.
Let's say that I have a list of
a<-c(1,2,3,4,5)
b<-(6,7,8)
and I want to get back all their possible cominations like
1,6
1,7
1,8
2,6
2,7
2,8
3,6
3,7
3,8
and so on.
How I can do that?
B.R
Alex
[[alternative HTML version deleted]]
2006 Sep 28
5
Eager loading using find_by_sql
Here''s the problem I have the following models
User - is a person
Team - is a team
Wherenote - snipet of info about a user''s whereabouts on a certain day
Team has_and_belongs_to_many :users
User has_and_belongs_to_many :teams
has_many :wherenotes
Wherenote belongs_to :user
each Wherenote has a note_date
On one page I want to pull back all the Users from a particular Team
2012 Jun 09
7
ActiveRecord::AssociationTypeMismatch in UsersController#update
Hi
Im trying to link my User model to a Teams model. I seem to be getting
the following errors. Any help would be great as Im just new to RoR
Thanks
error
ActiveRecord::AssociationTypeMismatch in UsersController#update
Team(#2183395560) expected, got String(#2174675960)
app/controllers/users_controller.rb:67:in `update''
app/controllers/users_controller.rb:66:in `update''
2006 Jan 25
1
Stable version
Hello all,
I'm a bit of a lurker on this list, so don't mind me.
It appears that klibc-1.1.1 fails when 'cp-to-kernel'ed, using linux-2.6.15.
Is it possible to produce another 'Stable' version? Call me a
stickler, but I just don't like using something of this grade when
marked 'Testing' or 'Unstable' by the developers themselves.
Thanks,
Aaron
2005 Jul 05
1
voicemail.conf overwritten
I'm trying to set up a base * configuration in a version control system.
I have nearly all the system-specific configuration pulled out into a
subdirectory so that /etc/asterisk is very generic and I can copy it into
another system when I create it.
The only stickler is voicemail.conf.
Includes within voicemail.conf will work, but when a user changes their
password, * cannot put the change