# Has many through & associate records **URL:** \ **Category:** Rails\ **Created:** [December 31, 2009, 11:08pm UTC](https://www.ruby-forum.com/t/has-many-through-associate-records/180933 "2009-12-31T23:08:11Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![jayoshi13](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/ea666f/32.png) [@jayoshi13](https://www.ruby-forum.com/u/jayoshi13)\ **Post date:** [December 31, 2009, 11:08pm UTC](https://www.ruby-forum.com/t/has-many-through-associate-records/180933/1 "2009-12-31T23:08:11Z")
The app I’m building performs Assessments through a series of Tests (about 120 tests in total), the results are stored in the join table Findings. Below is the has\_many throughout association I am using - class Test has\_many :findings has\_many :assessments, :through =\> :findings class Finding belongs\_to :assessment belongs\_to :test class Assessment has\_many :findings has\_many :tests, :through =\> :findings The data in the Test table is primarily static. When I Create a new Assessment I want to be able populate the Findings table with all tests in the Test table, as all tests are mandatory as part of the assessment. I can get this to partially work, for example - a = Assessment.create!(:name =\> ‘assessment1’, :test\_ids =\> [‘1’, ‘2’, ‘3’]) mysql\>select \* from FINDINGS; ±—±--------------±---------------------±------±--------- ±--------+ | id | test\_id | assessment\_id | pass | fail | verdict | ±—±--------------±---------------------±------±--------- ±--------+ | 1 | 1 | 1 | NULL | NULL | NULL | | 2 | 2 | 1 | NULL | NULL | NULL | | 3 | 3 | 1 | NULL | NULL | NULL | But I cannot figure out how to supply all Test id’s to create the full set of tests in the Findings table Any help much appreciated! Thanks – You received this message because you are subscribed to the Google Groups “Ruby on Rails: Talk” group. To post to this group, send email to removed\_email\_address@domain.invalid. To unsubscribe from this group, send email to removed\_email\_address@domain.invalid. For more options, visit this group at [http://groups.google.com/group/rubyonrails-talk?hl=en](http://groups.google.com/group/rubyonrails-talk?hl=en). ---
**Author:** ![jayoshi13](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/ea666f/32.png) [@jayoshi13](https://www.ruby-forum.com/u/jayoshi13)\ **Post date:** [January 1, 2010, 6:31am UTC](https://www.ruby-forum.com/t/has-many-through-associate-records/180933/2 "2010-01-01T06:31:47Z")
Hi Jayoshi, ``` But I cannot figure out how to supply all Test id's to ``` create the full set of tests in the Findings table Can you please specify what you need to populate in finding table. as you have mentioned that you need to specify test ids in finding table that is already get achieved with the way you followed to populate findings table. Please provide details. Thanks, Piyush On Jan 1, 3:06 am, jayoshi13 [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > class Finding > assessment. > | > set of tests in the Findings table > > Any help much appreciated! > > Thanks – You received this message because you are subscribed to the Google Groups “Ruby on Rails: Talk” group. To post to this group, send email to removed\_email\_address@domain.invalid. To unsubscribe from this group, send email to removed\_email\_address@domain.invalid. For more options, visit this group at [http://groups.google.com/group/rubyonrails-talk?hl=en](http://groups.google.com/group/rubyonrails-talk?hl=en). ---
**Author:** ![jayoshi13](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/ea666f/32.png) [@jayoshi13](https://www.ruby-forum.com/u/jayoshi13)\ **Post date:** [January 1, 2010, 8:08am UTC](https://www.ruby-forum.com/t/has-many-through-associate-records/180933/3 "2010-01-01T08:08:56Z")
On Thu, Dec 31, 2009 at 2:06 PM, jayoshi13 [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > class Finding > assessment. > | > set of tests in the Findings table > > Any help much appreciated! > > Thanks First, I would recommend not using “Test” because it happens to be module name used by the Ruby Test::Unit. Thus, let’s use class Quiz for the below explanation. Next, you should be able to do the following: 1. create a quiz quiz = Quiz.create! 1. create an assessment assessment = Assessment.create! 1. create a finding finding = Finding.create! 1. associate a quiz and assessment to a finding finding.quiz = quiz finding.assessment = assessment finding.save 1. check the quiz side of the association quiz.findings quiz.assessments 1. check the assessment side of the association assessment.findings assessment.quizzes 1. check the join model of the association finding.quiz finding.assessment 1. check the findings table Finding.all Next, in the above, one needed to create both ends of the association (i.e. assessment and quiz) for the above process to work. Next, if you are wanting to associate one or more quizzes to an assessment, you can do one of the following: assessment.quizzes \<\< quiz1 # associates a single quiz to this assessment or Quiz.all.each { |item| assessment.quizzes \<\< item } # associates all the quizzes to this assessment or assessment.quizzes.create! # create a quiz and associate it to this assessment Lastly, I would recommend referencing “Agile Web D. with Rails 3ed” by Dave T. et al because it covers this information in greater detail. Good luck, -Conrad quiz.findings \<\< finding > – You received this message because you are subscribed to the Google Groups “Ruby on Rails: Talk” group. To post to this group, send email to removed\_email\_address@domain.invalid. To unsubscribe from this group, send email to removed\_email\_address@domain.invalid. For more options, visit this group at [http://groups.google.com/group/rubyonrails-talk?hl=en](http://groups.google.com/group/rubyonrails-talk?hl=en). ---
**Author:** ![jayoshi13](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/ea666f/32.png) [@jayoshi13](https://www.ruby-forum.com/u/jayoshi13)\ **Post date:** [January 3, 2010, 12:32am UTC](https://www.ruby-forum.com/t/has-many-through-associate-records/180933/4 "2010-01-03T00:32:26Z")
Thanks for the detailed response Conrad, it help me out greatly! Regards, Jayoshi On Fri, Jan 1, 2010 at 7:07 AM, Conrad T. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > has\_many :assessments, :through =\> :findings > > Assessment I want to be able populate the Findings table with all > > ±--------+ > > for the below explanation. Next, you should be able to do the following: > > quiz.findings > finding.assessment > > assessment > > > “Ruby on Rails: Talk” group. > > You received this message because you are subscribed to the Google G. > > “Ruby on Rails: Talk” group. > > To post to this group, send email to removed\_email\_address@domain.invalid. > > To unsubscribe from this group, send email to > > removed\_email\_address@domain.invalid[removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) > > . > > For more options, visit this group at > > [http://groups.google.com/group/rubyonrails-talk?hl=en](http://groups.google.com/group/rubyonrails-talk?hl=en). – You received this message because you are subscribed to the Google Groups “Ruby on Rails: Talk” group. To post to this group, send email to removed\_email\_address@domain.invalid. To unsubscribe from this group, send email to removed\_email\_address@domain.invalid. For more options, visit this group at [http://groups.google.com/group/rubyonrails-talk?hl=en](http://groups.google.com/group/rubyonrails-talk?hl=en).