If it's coming in dynamically, wouldn't it be params[:author][:name] or something similar? A bit hard to guess without seeing more code. ----- Ryan Bigg Freelancer http://frozenplague.net
On 09/12/2008, at 9:30 AM, Frederick Cheung wrote: > > > On 8 Dec 2008, at 22:53, Jay Mark wrote: > >> >> Thanks again Fred. >> NO, I am not asking for the author whose name is the exact string >> 'name'. >> "Name" is the attribute or column in the authors table which has name >> values like James, John, etc. The user will select a name, say John, >> then I am passing that name as a condition to the query. >> After a submit button is clicked, the URL shows this: >> http://localhost:3000/authors/show?author[name]=John&commit=Submit >> >> I can't stick the name value in because it has to come dynamically to >> the controller. Name is not unique in the table >> >> I am still looking for the correct syntax for this: >> @authors = Author.find_by_sql ["SELECT * FROM authors WHERE name >> = ?", >> 'author[:name]'] > > Author.find_all_by_name author[:name] > In general, whereever I wrote name in the previous suggestions you can > just write author[:name] > > >> >> >> >> >> and this subselect: >> >> @books = Books.find_by_sql ["SELECT * FROM books where title >> IN( SELECT >> title FROM authors where name = ?", 'name')] >> > > Like I said, you've not to write it in the form > Books.find_by_sql [some_sql_statement, author[:name]] > > Seems to me like you would benefit from going back to some basic ruby > stuff. > > Fred >> I can't find it in the Docs. >> Please send me any pointers. >> Thanks >> >> Cypray >> >> >> >> >> >> >> >> >> >> >> >> Frederick Cheung wrote: >>> On Dec 8, 7:31�pm, Jay Mark <[EMAIL PROTECTED]> >>> wrote: >>>> Thanks for your help Fred. The wrong number of argument problem is >>>> gone. >>>> >>>> The queries are still not working. >>>> >>>> Using find_all_by_name give me "method not found error" >>>> >>> That should work as long as the argument you pass it exists (and as >>> long as Author has a column called name) , but from what you say >>> below >>> you don't have a local variable called name. >>> >>>> This one below returns no data but gives no error. But it works >>>> fine >>>> when I put it in mysql directly. >>>> >>>> @authors = Author.find_by_sql ["SELECT * FROM authors WHERE name >>>> = ?", >>>> �'name'] >>>> >>>> Also passing it in as author[:name] returns no data but gives no >>>> error, >>>> just empty rows >>>> >>> Well you've asked for authors whose name is the exact string 'name'. >>> Presumably you have a variable of some sort with the name you are >>> searching for ? You should stick that in >>> >>> >>>> @authors = Author.find_by_sql ["SELECT * FROM authors WHERE name >>>> = ?", >>>> 'author[:name]'] >>>> >>>> Without the single quote ('') around the 'name', I get "undefined >>>> local >>>> variable" error. >>>> >>>> Does any one know what is wrong with my query? >>>> >>>> Also �Rails is rejecting the syntax of the subselect below: >>>> >>> You're closing the parens in the wrong place. what you pass to >>> find_by_sql must be >>> [ "A string with all the sql", all, the, substitutions, here] >>> >>> take a look at the examples in the docs. >>> >>> Fred >> >> -- >> 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 -~----------~----~----~----~------~----~------~--~---
