This was a known problem addressed by 
http://dev.rubyonrails.com/ticket/533. Fix is already present in edge
rails, so if changing DDL is not an option and you cannot live without
syntactic sugar coming from dynamic finders like find_by* you could
just check out Rails from svn and use it instead of gem version.
Please see http://wiki.rubyonrails.com/rails/show/EdgeRails for
detailed instructions.
Cheers, 
Zsombor
On 6/15/05, Peter Fitzgibbons
<Peter.Fitzgibbons-p2lxMnUesd41y/cD6r8xzl6hYfS7NtTn@public.gmane.org>
wrote:>  
> 
> Hello All, 
> 
> I''m having trouble with find_by''s...they seem to not
exist in my model at
> runtime? 
> 
> Rails 0.12.1  AR 1.10.0 
> 
> Below is the DDL for table Project.  This is a legacy system and data
> structure... Modifying existing columns would be very painful. 
> 
> Below after DDL is the model Project.rb 
> In IRB: 
> C:\ruby\dev\pm>ruby script\console 
> Loading development environment. 
> irb(main):001:0> p = Project.find_by_projectactive(1) 
> NoMethodError: undefined method `find_by_projectactive'' for
Project:Class
>         from
>
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/base.rb:788:in
> `method_missing'' 
>         from
>
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/base.rb:788:in
> `each'' 
>         from
>
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/base.rb:788:in
> `method_missing'' 
>         from (irb):1 
> irb(main):002:0> p = Project.find_by_ProjectActive(1) 
> NoMethodError: undefined method `find_by_ProjectActive'' for
Project:Class
>         from
>
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/base.rb:800:in
> `method_missing'' 
>         from (irb):2 
> irb(main):003:0> p = Project.find_by_projectactive(1) 
> NoMethodError: undefined method `find_by_projectactive'' for
Project:Class
>         from
>
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/base.rb:788:in
> `method_missing'' 
>         from
>
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/base.rb:788:in
> `each'' 
>         from
>
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.10.1/lib/active_record/base.rb:788:in
> `method_missing'' 
>         from (irb):3 
> irb(main):004:0> 
> 
> Advice anyone? 
> 
> Thanks in advance! 
>  
>  
> 
> Peter J. Fitzgibbons
>  Applications Manager
>  Lakewood Homes - "The American Dream Builder"(r)
>  Peter.Fitzgibbons-STCS76aLmhk1y/cD6r8xzl6hYfS7NtTn@public.gmane.org
>  (847) 884-8800 
> 
> CREATE TABLE [Project] ( 
>         [ProjectID] [int] IDENTITY (1, 1) NOT NULL , 
>         [CompanyID] [int] NOT NULL , 
>         [ProjectNumber] [nvarchar] (5) COLLATE SQL_Latin1_General_CP1_CI_AS
> NOT NULL CONSTRAINT [DF_Project_ProjectNumber] DEFAULT (null), 
> 
>         [ProjectDescription] [nvarchar] (35) COLLATE
> SQL_Latin1_General_CP1_CI_AS NOT NULL CONSTRAINT
> [DF_Project_ProjectDescription] DEFAULT (null), 
> 
>         [StartDate] [datetime] NULL CONSTRAINT [DF_Project_StartDate]
> DEFAULT (null), 
>         [ProjectEstimatedCompletionDate] [datetime] NULL
> CONSTRAINT [DF_Project_ProjectEstimatedCompletionDate]
> DEFAULT (null), 
> 
>         [NoLotsUnits] [int] NOT NULL CONSTRAINT [DF_Project_NoLotsUnits]
> DEFAULT (0), 
>         [ContactName] [nvarchar] (3) COLLATE SQL_Latin1_General_CP1_CI_AS
> NULL CONSTRAINT [DF_Project_ContactName] DEFAULT (null), 
> 
>         [AddressLine1] [nvarchar] (30) COLLATE SQL_Latin1_General_CP1_CI_AS
> NULL CONSTRAINT [DF_Project_AddressLine1] DEFAULT (null), 
> 
>         [AddressLine2] [nvarchar] (30) COLLATE SQL_Latin1_General_CP1_CI_AS
> NULL CONSTRAINT [DF_Project_AddressLine2] DEFAULT (null), 
> 
>         [AddressLine3] [nvarchar] (30) COLLATE SQL_Latin1_General_CP1_CI_AS
> NULL CONSTRAINT [DF_Project_AddressLine3] DEFAULT (null), 
> 
>         [AddressLine4] [nvarchar] (30) COLLATE SQL_Latin1_General_CP1_CI_AS
> NULL CONSTRAINT [DF_Project_AddressLine4] DEFAULT (null), 
> 
>         [ContactPhone] [nvarchar] (15) COLLATE SQL_Latin1_General_CP1_CI_AS
> NULL CONSTRAINT [DF_Project_ContactPhone] DEFAULT (null), 
> 
>         [CityCode] [nvarchar] (2) COLLATE SQL_Latin1_General_CP1_CI_AS NULL
> CONSTRAINT [DF_Project_CityCode] DEFAULT (null), 
> 
>         [ProjectType] [int] NOT NULL CONSTRAINT [DF_Project_ProjectTypeID]
> DEFAULT (0), 
>         [ProjectActive] [bit] NOT NULL CONSTRAINT
[DF_Project_ProjectActive]
> DEFAULT (0), 
>         [ProjectCity] [nvarchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS
> NULL CONSTRAINT [DF_Project_ProjectCity] DEFAULT (null), 
> 
>         [Directions] [nvarchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS
> NULL CONSTRAINT [DF_Project_Directions] DEFAULT (null), 
> 
>         [House_Cost_Inflation] [money] NOT NULL CONSTRAINT
> [DF_Project_House_Cost_Inflation] DEFAULT (0), 
>         [House_Cost_Inflation_Percent] [real] NOT NULL CONSTRAINT
> [DF_Project_House_Cost_Inflation_Percent] DEFAULT (0), 
> 
>         [Cost_of_Incentive] [money] NOT NULL CONSTRAINT
> [DF_Project_Cost_of_Incentive] DEFAULT (0), 
>         [Indirect_Overhead_Percent] [real] NOT NULL CONSTRAINT
> [DF_Project_Indirect_Overhead_Percent] DEFAULT (0), 
>         [Service_Allocation_Percent] [real] NOT NULL CONSTRAINT
> [DF_Project_Service_Allocation_Percent] DEFAULT (0), 
>         [Selling_Expenses_Fixed_Percent] [real] NOT NULL
> CONSTRAINT [DF_Project_Selling_Expenses_Fixed_Percent]
> DEFAULT (0), 
> 
>         [Selling_Expenses_Variable_Percent] [real] NOT NULL
> CONSTRAINT [DF_Project_Selling_Expenses_Variable_Percent]
> DEFAULT (0), 
> 
>         [Model_Area_Percent] [real] NOT NULL CONSTRAINT
> [DF_Project_Model_Area_Percent] DEFAULT (0), 
>         [Advertising_Media_Percent] [real] NOT NULL CONSTRAINT
> [DF_Project_Advertising_Media_Percent] DEFAULT (0), 
>         [Closing_Cost_Percent] [real] NOT NULL CONSTRAINT
> [DF_Project_Closing_Cost_Percent] DEFAULT (0), 
>         [Const_Loan_Interest_Percent] [real] NOT NULL CONSTRAINT
> [DF_Project_Const_Loan_Interest_Percent] DEFAULT (0), 
>         [Investor_Fees_Percent] [real] NOT NULL CONSTRAINT
> [DF_Project_Investor_Fees_Percent] DEFAULT (0), 
>         [G_and_A_Percent] [real] NOT NULL CONSTRAINT
> [DF_Project_G_and_A_Percent] DEFAULT (0), 
>         [Recommended_Change] [money] NOT NULL CONSTRAINT
> [DF_Project_Recommended_Change] DEFAULT (0), 
>         [Total_Lot_Cost] [money] NOT NULL CONSTRAINT [DF_Project_Site_Cost]
> DEFAULT (0), 
>         [GEACLink] [bit] NOT NULL CONSTRAINT [DF_Project_GEACLink] DEFAULT
> (0), 
>         [CompanyCode] [nvarchar] (4) COLLATE SQL_Latin1_General_CP1_CI_AS
> NOT NULL , 
>         [BidsResponseDueDate] [datetime] NULL , 
>         [UIUpdated] [bit] NULL CONSTRAINT
> [DF__Project__UIUpdat__336AA144] DEFAULT (1), 
>         [DataLoadUpdated] [bit] NULL CONSTRAINT
> [DF__Project__DataLoa__345EC57D] DEFAULT (0), 
>         [GEACWrite] [bit] NOT NULL CONSTRAINT [DF_Project_GEACWrite]
DEFAULT
> (0), 
>         [CFTProjectID] [int] NULL , 
>         [FullBasementCategoryCode] [nvarchar] (5) COLLATE
> SQL_Latin1_General_CP1_CI_AS NULL , 
>         [FullBasementOptionCode] [nchar] (3) COLLATE
> SQL_Latin1_General_CP1_CI_AS NULL , 
>         [DefaultPOHold] [bit] NULL , 
>         [salesapp] [varchar] (5) COLLATE SQL_Latin1_General_CP1_CI_AS NULL
,
>         [sales_community_id] [varchar] (50) COLLATE
> SQL_Latin1_General_CP1_CI_AS NULL , 
>         CONSTRAINT [PROJECT_PK] PRIMARY KEY  CLUSTERED 
>         ( 
>                 [ProjectID] 
>         ) WITH  FILLFACTOR = 90  ON [PRIMARY] , 
>         CONSTRAINT [IX_ProjectNumber] UNIQUE  NONCLUSTERED 
>         ( 
>                 [CompanyID], 
>                 [ProjectNumber] 
>         ) WITH  FILLFACTOR = 90  ON [PRIMARY] , 
>         CONSTRAINT [PROJECT_COMPANY_FK] FOREIGN KEY 
>         ( 
>                 [CompanyID] 
>         ) REFERENCES [Company] ( 
>                 [CompanyID] 
>         ) 
> ) ON [PRIMARY] 
> GO 
> 
> CREATE TABLE [Project] ( 
>         [ProjectID] [int] IDENTITY (1, 1) NOT NULL , 
>         [CompanyID] [int] NOT NULL , 
>         [ProjectNumber] [nvarchar] (5) COLLATE SQL_Latin1_General_CP1_CI_AS
> NOT NULL CONSTRAINT [DF_Project_ProjectNumber] DEFAULT (null), 
> 
>         [ProjectDescription] [nvarchar] (35) COLLATE
> SQL_Latin1_General_CP1_CI_AS NOT NULL CONSTRAINT
> [DF_Project_ProjectDescription] DEFAULT (null), 
> 
>         [StartDate] [datetime] NULL CONSTRAINT [DF_Project_StartDate]
> DEFAULT (null), 
>         [ProjectEstimatedCompletionDate] [datetime] NULL
> CONSTRAINT [DF_Project_ProjectEstimatedCompletionDate]
> DEFAULT (null), 
> 
>         [NoLotsUnits] [int] NOT NULL CONSTRAINT [DF_Project_NoLotsUnits]
> DEFAULT (0), 
>         [ContactName] [nvarchar] (3) COLLATE SQL_Latin1_General_CP1_CI_AS
> NULL CONSTRAINT [DF_Project_ContactName] DEFAULT (null), 
> 
>         [AddressLine1] [nvarchar] (30) COLLATE SQL_Latin1_General_CP1_CI_AS
> NULL CONSTRAINT [DF_Project_AddressLine1] DEFAULT (null), 
> 
>         [AddressLine2] [nvarchar] (30) COLLATE SQL_Latin1_General_CP1_CI_AS
> NULL CONSTRAINT [DF_Project_AddressLine2] DEFAULT (null), 
> 
>         [AddressLine3] [nvarchar] (30) COLLATE SQL_Latin1_General_CP1_CI_AS
> NULL CONSTRAINT [DF_Project_AddressLine3] DEFAULT (null), 
> 
>         [AddressLine4] [nvarchar] (30) COLLATE SQL_Latin1_General_CP1_CI_AS
> NULL CONSTRAINT [DF_Project_AddressLine4] DEFAULT (null), 
> 
>         [ContactPhone] [nvarchar] (15) COLLATE SQL_Latin1_General_CP1_CI_AS
> NULL CONSTRAINT [DF_Project_ContactPhone] DEFAULT (null), 
> 
>         [CityCode] [nvarchar] (2) COLLATE SQL_Latin1_General_CP1_CI_AS NULL
> CONSTRAINT [DF_Project_CityCode] DEFAULT (null), 
> 
>         [ProjectType] [int] NOT NULL CONSTRAINT [DF_Project_ProjectTypeID]
> DEFAULT (0), 
>         [ProjectActive] [bit] NOT NULL CONSTRAINT
[DF_Project_ProjectActive]
> DEFAULT (0), 
>         [ProjectCity] [nvarchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS
> NULL CONSTRAINT [DF_Project_ProjectCity] DEFAULT (null), 
> 
>         [Directions] [nvarchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS
> NULL CONSTRAINT [DF_Project_Directions] DEFAULT (null), 
> 
>         [House_Cost_Inflation] [money] NOT NULL CONSTRAINT
> [DF_Project_House_Cost_Inflation] DEFAULT (0), 
>         [House_Cost_Inflation_Percent] [real] NOT NULL CONSTRAINT
> [DF_Project_House_Cost_Inflation_Percent] DEFAULT (0), 
> 
>         [Cost_of_Incentive] [money] NOT NULL CONSTRAINT
> [DF_Project_Cost_of_Incentive] DEFAULT (0), 
>         [Indirect_Overhead_Percent] [real] NOT NULL CONSTRAINT
> [DF_Project_Indirect_Overhead_Percent] DEFAULT (0), 
>         [Service_Allocation_Percent] [real] NOT NULL CONSTRAINT
> [DF_Project_Service_Allocation_Percent] DEFAULT (0), 
>         [Selling_Expenses_Fixed_Percent] [real] NOT NULL
> CONSTRAINT [DF_Project_Selling_Expenses_Fixed_Percent]
> DEFAULT (0), 
> 
>         [Selling_Expenses_Variable_Percent] [real] NOT NULL
> CONSTRAINT [DF_Project_Selling_Expenses_Variable_Percent]
> DEFAULT (0), 
> 
>         [Model_Area_Percent] [real] NOT NULL CONSTRAINT
> [DF_Project_Model_Area_Percent] DEFAULT (0), 
>         [Advertising_Media_Percent] [real] NOT NULL CONSTRAINT
> [DF_Project_Advertising_Media_Percent] DEFAULT (0), 
>         [Closing_Cost_Percent] [real] NOT NULL CONSTRAINT
> [DF_Project_Closing_Cost_Percent] DEFAULT (0), 
>         [Const_Loan_Interest_Percent] [real] NOT NULL CONSTRAINT
> [DF_Project_Const_Loan_Interest_Percent] DEFAULT (0), 
>         [Investor_Fees_Percent] [real] NOT NULL CONSTRAINT
> [DF_Project_Investor_Fees_Percent] DEFAULT (0), 
>         [G_and_A_Percent] [real] NOT NULL CONSTRAINT
> [DF_Project_G_and_A_Percent] DEFAULT (0), 
>         [Recommended_Change] [money] NOT NULL CONSTRAINT
> [DF_Project_Recommended_Change] DEFAULT (0), 
>         [Total_Lot_Cost] [money] NOT NULL CONSTRAINT [DF_Project_Site_Cost]
> DEFAULT (0), 
>         [GEACLink] [bit] NOT NULL CONSTRAINT [DF_Project_GEACLink] DEFAULT
> (0), 
>         [CompanyCode] [nvarchar] (4) COLLATE SQL_Latin1_General_CP1_CI_AS
> NOT NULL , 
>         [BidsResponseDueDate] [datetime] NULL , 
>         [UIUpdated] [bit] NULL CONSTRAINT
> [DF__Project__UIUpdat__336AA144] DEFAULT (1), 
>         [DataLoadUpdated] [bit] NULL CONSTRAINT
> [DF__Project__DataLoa__345EC57D] DEFAULT (0), 
>         [GEACWrite] [bit] NOT NULL CONSTRAINT [DF_Project_GEACWrite]
DEFAULT
> (0), 
>         [CFTProjectID] [int] NULL , 
>         [FullBasementCategoryCode] [nvarchar] (5) COLLATE
> SQL_Latin1_General_CP1_CI_AS NULL , 
>         [FullBasementOptionCode] [nchar] (3) COLLATE
> SQL_Latin1_General_CP1_CI_AS NULL , 
>         [DefaultPOHold] [bit] NULL , 
>         [salesapp] [varchar] (5) COLLATE SQL_Latin1_General_CP1_CI_AS NULL
,
>         [sales_community_id] [varchar] (50) COLLATE
> SQL_Latin1_General_CP1_CI_AS NULL , 
>         CONSTRAINT [PROJECT_PK] PRIMARY KEY  CLUSTERED 
>         ( 
>                 [ProjectID] 
>         ) WITH  FILLFACTOR = 90  ON [PRIMARY] , 
>         CONSTRAINT [IX_ProjectNumber] UNIQUE  NONCLUSTERED 
>         ( 
>                 [CompanyID], 
>                 [ProjectNumber] 
>         ) WITH  FILLFACTOR = 90  ON [PRIMARY] , 
>         CONSTRAINT [PROJECT_COMPANY_FK] FOREIGN KEY 
>         ( 
>                 [CompanyID] 
>         ) REFERENCES [Company] ( 
>                 [CompanyID] 
>         ) 
> ) ON [PRIMARY] 
> GO 
> 
> class Project < ActiveRecord::Base 
>         set_table_name "Project" 
>         set_primary_key "ProjectID" 
>         
>         belongs_to :sales_community 
>         
>         has_many :model, :foreign_key=>"ProjectID",
:order=>"ModelCode"
>         
> end 
> _______________________________________________
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> 
> 
> 
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