[Rails] difference between in_groups and in_groups_of Rails
Hi, I am not finding any difference between the 2 methods - in_groups and in_groups_of. Is their really any difference between in_groups and in_groups_of.. http://api.rubyonrails.org/classes/Array.html#method-i-in_groups. -- Regards, Arup Rakshit Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it. --Brian Kernighan -- You received this message because you are subscribed to the Google Groups Ruby on Rails: Talk group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscr...@googlegroups.com. To post to this group, send email to rubyonrails-talk@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/1553450.DQrx40ihLd%40linux-wzza.site. For more options, visit https://groups.google.com/d/optout.
[Rails] Difference between Cookies and Sessions
Hello, Can anybody please define cookies and sessions and their differences in detail with reference to rails. Thank you, Praveen -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups Ruby on Rails: Talk group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscr...@googlegroups.com. To post to this group, send email to rubyonrails-talk@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/6c917df7bf555a6e49a8fbfb68cd6144%40ruby-forum.com. For more options, visit https://groups.google.com/d/optout.
Re: [Rails] Difference between Cookies and Sessions
Cookies are stored key/value pairs (with other attributes such as expiry, domain, path and ssl requirements) in the client's browser. The specification for them is in the HTTP specification and these can (generally) be read by backend languages such as Rails or frontend technologies such as Javascript. Sessions are an unrestricted storage area for applications, generally used by the backend language only (due to encryption and hash protection with server side secrets), although they may be stored in their entirety in a client-side cookie for convenience to avoid sticky sessions where requests have to come back to the same backend server. Hope this helps. Cheers, Andy *Andy Jeffries* Ruby on Rails, RubyMotion, jQuery Developer Taekwondo 6th Dan Instructor andyjeffries.co.uk +44 7939 164853 @andyjeffries http://twitter.com/andyjeffries fb.com/andyjeffries http://facebook.com/andyjeffries On 7 July 2014 10:21, Praveen BK li...@ruby-forum.com wrote: Hello, Can anybody please define cookies and sessions and their differences in detail with reference to rails. Thank you, Praveen -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups Ruby on Rails: Talk group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscr...@googlegroups.com. To post to this group, send email to rubyonrails-talk@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/6c917df7bf555a6e49a8fbfb68cd6144%40ruby-forum.com . For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups Ruby on Rails: Talk group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscr...@googlegroups.com. To post to this group, send email to rubyonrails-talk@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/CANRNWfgM%3DN4eEuPKW7NN4DGHNL3O%3D9%2BNcHZgWTWvm0dFEW%2Bbdg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
[Rails] difference between Self joins and self-referential association
self-joins are discussed here: http://guides.rubyonrails.org/association_basics.html#self-joins self-referential association is discussed here: http://railscasts.com/episodes/163-self-referential-association The main difference I see is that self-referential association creates a join model, such as friendship, which links another model, such as user, to itself, so a user can have many friends (which are other users), and a friend can be befriended by a user. The self-joins looks like there is no join model. Simply a foreign key is added to the same model, such as a manager_id column to the employee model. An employee, who is a manager, can have many other employees, who are subordinates. And the link is done on the same table itself, association the employee manager_id column with the the employee id column. To me, these two techniques look virtually the same. Is there a difference and which is preferred? -- You received this message because you are subscribed to the Google Groups Ruby on Rails: Talk group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscr...@googlegroups.com. To post to this group, send email to rubyonrails-talk@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/bdd46a05-4cbe-4db3-ac90-679ffbdfedd5%40googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [Rails] difference between Self joins and self-referential association
On 7 December 2013 19:23, John Merlino stoici...@aol.com wrote: self-joins are discussed here: http://guides.rubyonrails.org/association_basics.html#self-joins self-referential association is discussed here: http://railscasts.com/episodes/163-self-referential-association The main difference I see is that self-referential association creates a join model, such as friendship, which links another model, such as user, to itself, so a user can have many friends (which are other users), and a friend can be befriended by a user. The self-joins looks like there is no join model. Simply a foreign key is added to the same model, such as a manager_id column to the employee model. An employee, who is a manager, can have many other employees, who are subordinates. And the link is done on the same table itself, association the employee manager_id column with the the employee id column. To me, these two techniques look virtually the same. Is there a difference and which is preferred? With a join model the relationship is symetrical. Each user can have many friends and can be the friend of many other users, similar to a has_and_belongs_to_many association. With the self referential association you describe, a manager can have many employees but an employee can belongs to only one manager (like a has_many, belongs_to association). So which one to use depends on the requirements. Colin -- You received this message because you are subscribed to the Google Groups Ruby on Rails: Talk group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscr...@googlegroups.com. To post to this group, send email to rubyonrails-talk@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/CAL%3D0gLuOKFb3e4JVoyTtkH0SJDurPSsxSXRwsjsGnPRWXy4pHQ%40mail.gmail.com. For more options, visit https://groups.google.com/groups/opt_out.
[Rails] Difference between _path and :action = 'some_method'
Hello. So solved some error with just replacing path method with calling :action=... But I'm curious why in absolutely same in first case _path worked perfect, in second it causer an error which is solved just by changing syntax (but not the sence of what is happening) First case: %= form_for @answer, {:url = create_answer_test_path(@test), :html = {:id=form_#{@key.position}}, :remote=true} worked with no problem %= button_to '-', {:url=delete_answer_test_path(@test)}, :method=:delete, :remote =true % Caused several types of errors: ActionController::RoutingError (No route matches {:action=delete_answer, :controller=tests, :id=nil}) Started DELETE /tests/150/create_answer?key_id=905url=%2Ftests%2F150%2Fdelete_answer for 127.0.0.1 at 2013-03-18 12:08:36 +0400 (??? for some reason started previous method and 'delete_answer' was just in server call) But when I replaced it with {:controller='tests', :action = 'delete_answer'} (which is basically just another way of syntax, but not of what is going on) works fine. ? -- You received this message because you are subscribed to the Google Groups Ruby on Rails: Talk group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscr...@googlegroups.com. To post to this group, send email to rubyonrails-talk@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-talk/-/8eouGU9Pm9QJ. For more options, visit https://groups.google.com/groups/opt_out.
[Rails] Difference between save and create ?
Hi, Anybody please help me showing difference between save and create in ruby on rails. expecting help. Regards, Manoj. -- Posted via http://www.ruby-forum.com/. -- 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 rubyonrails-talk@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [Rails] Difference between save and create ?
Refer this link ' http://www.rorexperts.com/differences-between-create-and-save-methods-in-active-record-t1348.html ' regards, Loganathan ViewMe http://vizualize.me/loganathan On Fri, Jul 27, 2012 at 3:20 PM, manoj c. li...@ruby-forum.com wrote: difference between save and create -- 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 rubyonrails-talk@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[Rails] difference between build_ and .build
hi im new in Ruby on rails and currently working with a reservation system can anyone explain what is the difference between current_package = build_reservation_package(:package_id = package_id) abd current_package =reservation_package.build(:package_id = package_id) because i tried using the first one but no good but when i try the second it worked i think both are the same please correct me if im wrong thank -- 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 rubyonrails-talk@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
[Rails] difference between merging a hash in ruby and using merge_conditions of activerecord
The ruby library comes with a method called merge that allows you to merge two hashes. So then why does merge_conditions exist in activereocrd, which appears to be doing the same thing. thanks for response -- 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 rubyonrails-talk@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
[Rails] difference between %= and %
Hi all what is the difference between %= and % in a view file? thanks -- Posted via http://www.ruby-forum.com/. -- 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 rubyonrails-talk@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
[Rails] difference between PHP and RubyOnRails
Can you please explain the difference between PHP and RubyOnRails. I am trying to get a web-based application developed for an online personality test, and would like something secure, has database abilities, graphing abilities, backend calculation capabilities. Please advise! I was told to have the program developed as a Wordpress plugin using PHP. Is this passe, or a good idea? Thank you. -- 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 rubyonrails-talk@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
Re: [Rails] difference between PHP and RubyOnRails
On Sun, Jun 19, 2011 at 6:37 PM, Margaret enneamo...@gmail.com wrote: Can you please explain the difference between PHP and RubyOnRails. PHP is a programming language; Ruby on Rails is a web application development platform using the Ruby language. I am trying to get a web-based application developed for an online personality test, and would like something secure, has database abilities, graphing abilities, backend calculation capabilities. Please advise! I was told to have the program developed as a Wordpress plugin using PHP. told to ? So I'm guessing you're not a developer yourself? In that case the most important thing is to find a developer that you trust, regardless of what language/platform s/he uses. Is this passe, or a good idea? Thank you. Your application sounds perfect for Rails. The idea of creating it as a plugin for Wordpress sounds like welding a basket on a submarine to wash lettuce. But see my first point above :-) Good luck! -- Hassan Schroeder hassan.schroe...@gmail.com http://about.me/hassanschroeder twitter: @hassan -- 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 rubyonrails-talk@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
Re: [Rails] difference between PHP and RubyOnRails
On Jun 19, 2011, at 9:37 PM, Margaret wrote: Can you please explain the difference between PHP and RubyOnRails. I am trying to get a web-based application developed for an online personality test, and would like something secure, has database abilities, graphing abilities, backend calculation capabilities. Please advise! I was told to have the program developed as a Wordpress plugin using PHP. Is this passe, or a good idea? Thank you. Some basic terminology first: PHP is a language, Ruby is a language. CakePHP or Zend Framework are examples of PHP Web frameworks, and Rails is a Ruby Web framework. There are many others, in both languages. These languages have a lot of following in the Web development community, because they are dynamic (flexible) and there are great hooks into traditional Web workflows. Other languages include Python, C#, even C itself (which is the mother language of Ruby and PHP -- they're both written at the lowest level in C). Wordpress is a blogging application, written in PHP. It is not, strictly speaking, the same kind of thing as Cake or Zend. Instead, you could use either of those frameworks to create an application similar to Wordpress. A good programmer could implement your elevator pitch requirements using nearly any Web-friendly language or toolkit, and this choice of framework or language should be made by the person who is doing the work. It's their productivity that will be impacted most by this choice, not the possibility of meeting your deliverables. Unless you are the one who will be coding this, I recommend that you write the clearest possible explanation of your business goals, and put it out for bid. Throw out the highest and lowest bid, and use only as one tiny factor in your decision which language or framework the final product is developed in. You do have a certain responsibility to yourself to choose a popular development style, simply because your prime developer may not be the person who ends up maintaining the thing. You want to stay in one of the larger tents so you can hire someone to pick up the pieces later. Walter -- 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 rubyonrails-talk@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
[Rails] difference between attr_accessor and attr_accessible?
Hi, What's the difference between attr_accessor and attr_accessible? Is attr_accessor to create a virtual variable/object and attr_accessible makes it accessible? Do you need attr_accessible if you already have attr_accessor? Thanks! -- Posted via http://www.ruby-forum.com/. -- 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 rubyonrails-talk@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
Re: [Rails] Difference between rake test:units and individually running ruby -I test test/unit/something_test.rb ?
On 23 December 2010 03:17, daze dmonopol...@gmail.com wrote: Here's my issue: running ruby -I test test/unit/something_test.rb for each of my unit tests works perfectly. However, running rake test:units brings errors in all of them - some object becomes nil for some reason. Why might this be happening? Specifics: the object that is successfully not nil when I run the unit tests one-by-one but becomes nil when I do rake test:units is defined like this... klass = self.name.gsub(/Test$/, ).constantize instance = klass.first You could use ruby-debug to break into the test at the point of failure and inspect the data and see what is going on. If you have not used ruby-debug have a look at the Rails Guide on debugging to see how. Colin -- You received this message because you are subscribed to the Google Groups Ruby on Rails: Talk group. To post to this group, send email to rubyonrails-t...@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
[Rails] Difference between rake test:units and individually running ruby -I test test/unit/something_test.rb ?
Here's my issue: running ruby -I test test/unit/something_test.rb for each of my unit tests works perfectly. However, running rake test:units brings errors in all of them - some object becomes nil for some reason. Why might this be happening? Specifics: the object that is successfully not nil when I run the unit tests one-by-one but becomes nil when I do rake test:units is defined like this... klass = self.name.gsub(/Test$/, ).constantize instance = klass.first ...and I'm sure that my test db is populated whenever I run my tests... -- 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 rubyonrails-t...@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
[Rails] difference between attr_accesor and attr_accesible
I m new to ruby language. difference between att_accesor and attr_accessible is not clear to me. thanks for your kind help. kp (india) -- 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 rubyonrails-t...@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
[Rails] difference between belongs_to and references keyword?
First, I am very new to ruby and rails. Searching for references is really tough, and so I've finally come here. I'm trying to create a scaffold. Let's say a Business and a School both can have a single Address (not shared). In a different case, an Offer has an OfferType (with just a type_id and description). Also, a Business can have many Offers. (I've stripped off most of the unrelated columns, like last_name, etc...) I'm wondering (in about this order): a) Am I doing this right? b) What the difference would be if I used Address business:belongs_to user:belongs_to instead of references? c) Is the Business address:has_one redundant with Address business:references? If not, what does it do? What about the has_many? d) Will this generate join tables for me? And I don't need to specify x_id's anywhere in these relationships? ./script/generate scaffold Business address:has_one offer:has_many name:string first_name:string ./script/generate scaffold School address:has_one name:string ./script/generate scaffold Address business:references school:references address1:string ./script/generate scaffold Offer business:references offerType:has_one start_date:datetime ./script/generate scaffold OfferType image:has_one name:string description:text (I'm on Ruby 1.8.7 and Rails 2.3.8.) Thanks! -- Posted via http://www.ruby-forum.com/. -- 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 rubyonrails-t...@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
[Rails] difference between singularized symbol and pluralized symbol
Hey all, Does anyone know the difference between a singularized symbol (:student_state) and a pluralized symbol (:student_states). How can they be used differently. Thanks for suggestions. -- Posted via http://www.ruby-forum.com/. -- 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 rubyonrails-t...@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
[Rails] difference between underscore, tableize and self.class.model
Hey all, Not sure what the difference between underscore and tableize, other than tableize also pluralizes. However, not sure how they can be used differently. Obviously, you can use tableize to reference table name in database. But what different functionality does underscore provide? Also, what different functionality would calling self.class.model, where model is a model. Basically, while I know what these three are, I'm not sure how they can be used differently. Thanks for any suggestions. -- Posted via http://www.ruby-forum.com/. -- 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 rubyonrails-t...@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
Re: [Rails] Difference between ruby1.8.6 and 1.8.7
Quoting Tom Mac li...@ruby-forum.com: Hi I am using ruby1.8.6 for development in fedora12 since in yum repository the latest is that. Is there any problem if continuing with that and later migrating to 1.8.7 .Is there any big difference between them? Please share your thoughts Ruby 1.8.7 breaks assert2's Ruby parsing, the conditions still pass or fail properly, but the display of all the intermediate values does not happen. Still useful for testing, but no help debugging. Effectively negates the advantage of assert2 over the regular assert. I intend to move to Ruby 1.9 and Rails3 as soon as they both become stable, so I'm not ripping all the assert2 out, but it is a nuisance til then. Jeffrey -- 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 rubyonrails-t...@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
[Rails] Difference between ruby1.8.6 and 1.8.7
Hi I am using ruby1.8.6 for development in fedora12 since in yum repository the latest is that. Is there any problem if continuing with that and later migrating to 1.8.7 .Is there any big difference between them? Please share your thoughts Thanks Tom -- Posted via http://www.ruby-forum.com/. -- 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 rubyonrails-t...@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
[Rails] Difference between Mongrel and Webrick
Hi Everybody, I would like to know the exact difference between Mongrel and Webrick. I have gone through few sites about Mongrel and Webrick differences. I came to know that Mongrel is fast, efficient than Webrick. Are there any other differences other than this? Which one is better? Are there any other servers other than Mongrel and Webrick. Thanks in advance. -- 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 rubyonrails-t...@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
[Rails] Difference Between ROR and Django...
Hi I am the newbie to both Django as well as ROR Which one i have to choose as my carrier one And what is the main difference Djkango in Python It is in Ruby.. which one is best to easy learn and about security Thank you... -- WithRegards... K.Ramkumar Blog at http://fallinlinux.wordpress.com/ contact : 97915 89522 --~--~-~--~~~---~--~~ 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 rubyonrails-talk@googlegroups.com To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~--~~~~--~~--~--~---
[Rails] difference between html.erb and .erb
I spend few hours debugging a flash chart issue. At the end and after a lot of trial and error, I switched my view name from dashboard.erb to dashboard.html.erb and that resolved the problem. Any idea why? I tried to google for the difference between the two but could not find anything meaningful. I have a mix of views with only .erb and html.erb in my app. Thanks for the insight. --~--~-~--~~~---~--~~ 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 rubyonrails-talk@googlegroups.com To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~--~~~~--~~--~--~---
[Rails] Difference between include and joins in find?
I had real weird problem here. If I use joins in find, both development and production environment give right answers. But, when I use include in find, the development environment goes all right. However, the find method fails in production enviroment. Let me describe this in detail. I have two tables. ## table 1: companies ## id int . ## table 2: sections ## id int ref_company_id int ref_meta_id int A company will have one section, and a section may have sub-sections. when ref_meta_id is 0, the section is the main section of a company whose id is ref_company_id. when ref_meta_id is not 0, the section is a sub-section of a company whose id is ref_company_id. And here are the two models # class Company ActiveRecord #has_one :main- section, :class=Section, :foreign_key=ref_company_id, :conditions=ref_meta_id=0 #has_many :all- sections, :class=Section, :foreign_key=ref_company_id # end # class Section ActiveRecord # belongs_to :company, :class=Company, :foreign_key=ref_company_id # end All these things are good in both development and production environment. # Company.find(1).main-section # Company.find(1).all-sections # Section.find(1).company Now comes to the find method used in controller. First use joins, as I said before, the following methods went well in both development and production enviroment. # Company.find(:all, :select='companies.*', :joins=[:all- sections], :conditions=companies.id500) # Company.find(:all, :select='companies.*', :joins=[:all- sections], :conditions=sections.id500) Then use include, # Company.find(:all, :select='companies.*', :joins=[:all- sections], :conditions=companies.id500) this went well in both development and production enviroment. However, # Company.find(:all, :select='companies.*', :joins=[:all- sections], :conditions=sections.id500) this went well in development environment, but in production environment, I get this error. * Unknown column 'companies.ref_company_id' in 'field list': SELECT `companies`.`id` AS t0_r0, `companies`.`ref_company_id` AS t0_r16, `companies`.`ref_meta_id` AS t0_r17, `sections`.`id` AS t1_r0, `sections`.`ref_company_id` AS t1_r1, `sections`.`ref_meta_id` AS t1_r2, FROM`companies` LEFT OUTER JOIN `sections` ON sections.ref_meta_id = companies.id WHERE ( sections.id500 ) ** And this is definetely a wrong SQL statement Can anybody explain this? And Can anybody please explain what is the difference between include and join? --~--~-~--~~~---~--~~ 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 rubyonrails-talk@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~--~~~~--~~--~--~---
[Rails] Difference between Collection, method and action
Hi, what are the differences between Collection, Method and Action? How to call each? --~--~-~--~~~---~--~~ 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 rubyonrails-talk@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~--~~~~--~~--~--~---
[Rails] difference between model and scaffold generators
Hi, among lots other confusions herez one.. I found two kinda similar (:to me) = script/generate model business name:string address:string location_id:integer AND script/generate scaffold business name:string address:string location_id:integer but with model I couldn't do this: http://localhost:port-number/businesses but with scaffold this url came with the option to give input which is saved in the database. So, I don't use model but scaffold. So, can someone plz lighten me up on this. thnx.. -- Posted via http://www.ruby-forum.com/. --~--~-~--~~~---~--~~ 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 rubyonrails-talk@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~--~~~~--~~--~--~---