similar to: Re: How to model large SqlServer database

Displaying 20 results from an estimated 1000 matches similar to: "Re: How to model large SqlServer database"

2009 Jun 08
2
Connecting to SQLServer
New to rails. Installed rails on my XP desktop, and setup my first app that will use an existing SQLServer database. I am able to connect to SQLServer using odbc with following code. require ''rubygems'' require ''ActiveRecord'' ActiveRecord::Base.establish_connection( :adapter => ''sqlserver'', :mode => ''odbc'', :dsn
2005 Oct 05
0
has_and_belongs_to_many on legacy DB
I am working with mapping ActiveRecord onto a legacy database. All is going well (using set_table_name, set_primary_key, etc), but I can''t get my many<=>many relationships to work. My contrived example of the situation: Student has_and_belongs_to_many Teachers. This is mapped via table student2teacher where the foreign keys are studentId and teacherId. The primary key in Student
2006 Jun 14
0
Mssql Multiple Database Access Error
Hi All, I am having a problem to access multiple databases with mssql I am running Ruby 1.8.4 and Rails 1.1 on Windows 2000 Advanced Server. I am simply trying to integrate the application I wrote before for Oracle to Mssql. The application works perfectly with Oracle with the installed driver OCI8. The app retrives data based on a search criteria from those databases. I followed the directions
2006 Feb 28
0
ActiveRecord: Legacy primary keys
Hi, I''m building a frontend for a legacy schema, with tables like this: CREATE TABLE `types` ( `a_type_cd` varchar(6) NOT NULL default '''', `a_type` varchar(30) NOT NULL default '''', PRIMARY KEY (`a_type_cd`) ); The primary key is specified by the user (not auto-generated), and needs to be updateable. I create the following a base class to
2006 May 15
8
set_table_name and self.table_name
I have some legacy tables that I used set_table_name on, I''m attempting to write a method that will get key value from a sequence table and then update it and return a value. I''m hoping to put this in the base ActiveRecord method so I would like to reference the table name with self.table_name or something... class Contacts < ActiveRecord::Base set_table_name
2006 Jan 18
3
legacy database on remote host
I''m getting this error in webrick then it crashes leaving nothing in the log. ruby: symbol lookup error: /usr/lib/ruby/gems/1.8/gems/mysql-2.7/lib/mysql.so: undefined symbol: mysql_sqlstate Here is the standard query I would normally write to get the data. select * from child,parent where CONCAT(SUBSTRING(child.item_number,1,14,''00'') = parent.order_number and
2009 Apr 16
0
Magic multi connections with association problem
Dear all I am using magic multi connections, there is some problem when using association. How can I dynamic determine the module name (i.e. A::Request, B::Request) in activerecord association. Below is my code: module A establish_connection :A end module B establish_connection :B end # and many module.... class Request < ActiveRecord::Base set_table_name "request"
2006 Jul 25
2
join in legacy DB?
I''ve got a problem with some tables that don''t follow any RAILS standards. how do I define the join in the model when all three tables have wacky names? class Machine < ActiveRecord::Base set_table_name "tbl_CodeMgmt_Host" set_primary_key "Id" end class Pool < ActiveRecord::Base set_table_name "tbl_CodeMgmt_Pool" set_primary_key
2006 Apr 11
1
Foreign Keys
Hi, My tables are as follows: "tblusers" - primary key "TblUsersID" "tblregisteredphones" - primary key "TblRegisteredPhonesID" - foreign key "intUserID" My models are as follows: class Registeredphone < ActiveRecord::Base set_table_name "tblregisteredphones" belongs_to :user, :foreign_key
2008 Jan 23
1
Making Parents object attributes available
Hello, I have a class Person class Persoon < ActiveRecord::Base set_table_name "Persoon" set_primary_key "p_persoon" has_many :adres, :class_name => "Adres" composed_of :name, :class_name => Name, :mapping => [ [:naam,:naam], [:voornaam,:voornaam], [:voornaam2,:voornaam2], [:persnickname,:persnickname], [:perssortname,:perssortname] ] def
2006 Feb 28
3
[AR] #{id} namespace visibility used in finder_sql
Dears, [Rails 1.0.0] I''m working with a legacy schema, and around my 20+ models i''ve used some AR constructs. They are based on a finder_sql doing some dirty sql and using #{id} from the ''pivot'' model for extracting data in other tables. like : class Division < ActiveRecord::Base set_table_name "legacy_division" set_primary_key
2006 Jul 22
3
Connection refused - connect(2)
Dear all, Please help me in this regards, I am using models to access LegacySchemas using set_table_name and set_primary_key... [code for model] class CdDetails < ActiveRecord::Base def self.find_data set_table_name ''cd_details'' set_primary_key ''cd_label'' find (:first, :select => "cd_label") end
2006 Jul 03
9
Migrations from Mysql to Oracle. PLS HELP!
Hi all, I''m using Rails/Mysql as development platform. the production server is under Rails/Oracle. Right now, i''m trying to install my application under the production server, the connection to orcale is fine via Rails, but i have a weird problem. example : here is a extract from my db scheme : Table User :_____________ id_user | first_name |
2007 Aug 11
0
Object herency problems
MOdel Why when i put: Member.find(params[:id]).genealogy, it tells: undefined method `genealogy'' for #<Matrix:0x4682280> class Member < ActiveRecord::Base set_primary_key :userid has_many :matrix, :foreign_key => :userid has_many :matrix, :foreign_key => :parent def genealogy result = matrix.clone matrix.each do |m| m.children.each do |c|
2005 Jul 25
0
sqlsever, scaffold and set_primary_key
I found what was wrong with sqlserver adapter. I can rename "id" to other name and it works. Only scaffold does not work correctly. It ignores my set_primary_key command and is looking for "id" name. -- JZ
2006 Mar 03
0
AR::Base.pluralize_table_names doesnt work with scaffold generator, right?
Hi! The script/generator scaffold for models doesnt respect (source in) this config/environment.rb setup, right? Because I can put in there ActiveRecord::Base.pluralize_table_names = false but when I run a command like ruby script/generate scaffold model Something then it throws an error saying that my database scheme doesnt have a Something. However there is a table called something. If I
2013 Feb 10
0
Nested attributes doesnt get updated
Hi Am building a nested form and my code works fine with sqlite3 but throws errors when using Oracle during update action. Am getting the following error: ActiveRecord::RecordNotFound in AWRequestsController#update Couldn''t find WADetail with ID=5000000015 for AWRequest with ID=5000000022.0 Request *Parameters*: {"utf8"=>"✓",
2010 Aug 19
1
Composite primary keys and :joins=>
I have a legacy db with the following simplified structure: Table-A: type_key, code_key, name, ... # PKs are type_key and code_key, there is no id col and I cannot alter this db Table-B: # each row has only the code as a foreign_key, the type_key is hard-coded to "FOOKEY" an_id, code, ... Models: class TableB < AR::Base set_table_name ''table_b''
2006 Feb 14
6
[newb] Find vs Find :all question
I''m playing out with writing an online store. So far it has accounts, addressbooks, and orders, and those 3 are tied together with an customer ID. I also have orderDetails, which are associated to the order via an order number. See models below... When I do the following I can access the orderDetails information just fine: @order = Order.find(params[:id]) # i pass it a customer
2008 Apr 01
0
activerecord-sqlserver-adapter Gems Not Found HELP!!
Hi there, I''m running ROR 2.x on Win32 tried to run gem install activerecord-sqlserver-adapter --source http://gems.rubyonrails.org and get this: D:\>gem install activerecord-sqlserver-adapter -source http://gems.rubyonrails.org Bulk updating Gem source index for: http://gems.rubyonrails.org ERROR: While executing gem ... (Gem::GemNotFoundException) Could not find