similar to: find_by_sql, can''t print results

Hi Folks, When I have tried this cookbook example from onLamp tutorial, I got some error like this, output of development.log is ---------- Permission denied - /var/www/html/cookbook/public/../config/../tmp/sessions//rub y_sess.d51d8997edf6be91 only the first line of output is this, output truncated. --------- what it will be ? How to solve this ? In my browser, I am getting Applicaiton

Hi All, Is there a way to do join queries with find() or is it best to use find_by_sql() instead? I''m looking to do something like: SELECT winery_name, wine_name FROM winery, wine WHERE wine.winery_id = winery.winery_id AND winery.winery_name LIKE ''Borg%''; Thanks! : ) Jason

Hello, I''m wondering if someone might be able to offer me a solution to the following problem that has so far stumped me. I''m trying to get the distinct months (and years) from a date field to display as a list in a view. For example, there might be a number of records stored with dates in the table ''headlines'': name date record1 21-09-2008 record2

hi I amd tanizawa. I had problem. I can not get main.name value from below sql. "find_by_sql ''select main.id,main.name,sub.name from main left join sub on sub.id = main.id''" Please teach me how to get borth name value. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To view this discussion on the

I was recently having problems accessing attributes in an object. Can somebody explain to me why this is, and if it is a bug? I have the following code: @archives = RapturePost.find_by_sql "select distinct date_format(rapture_posts.date_created,''%Y-%m'') date_created from rapture_posts where rapture_posts.site_id = 1 order by rapture_posts.date_created desc" I

Hi, I have some images and I want to be able to drag them into the order I want and have the database updated accordingly. I have an unordered list elsewhere in the application that works well, but for the images I cant get it working. In my controller I have: def updateorder params[:images].each_with_index { |id,idx| ProductImage.update(id, :display_order => idx) } render :text

Hello-- There must be a better way to do this. I have a class method in my model that finds averages and does a few calculations using find_by_sql. The problem I¹m encountering is that all computed columns from MySQL come back as type string. E.g., def self.find_averages(domain_id) if @@domain_average return @@domain_average else @@domain_average =

I''m trying to get the following statement to work using variable substitution (it works if hard-code the where (med_type) param in the inner SQL statement): med_type = ''game'' @mediaformats = MediaFormat.find_by_sql("select * from media_formats where media_formats.media_type_id = (select media_type_id from media_types where media_type = ?, :med_type) order by

I tried to use named parameters in my SQL query , using find_by_sql Order.find_by_sql ([select * from orders where amount > ? and quantity > ?", [ @amount, @quantity ] works;.. but Order.find_by_sql ([select * from orders where amount > :amount and quantity > :quantity ", [ :amount => @amt, :quantity => @qty ] is not working a I wrong or should I use a plain select

I have a bunch of queries to compute some counters, like find_by_sql(<<-SQL SELECT p.*, c.nfavourites FROM people p, ( SELECT fp.person_id, COUNT(fp.user_id) as nfavourites FROM favourite_people fp, users u WHERE fp.user_id = u.id AND u.cluster = ''#{in_cluster_of_user.cluster}'' GROUP BY fp.person_id ) as c WHERE

Hello, I was wondering if there was a method in Rails that returns the sum of a column. For example, I have a column called ''score'' and writing a SQL statement such a ''select sum(score) from table_name'' does return the sum of the values in the column. In the past (not too long ago being a newbie), I defined all sorts of methods only to discover that Rails

Why would I get an undefined method `find_by_sql'' for #Example: 0x981a4e4> for error when trying to use the find_by_sql method in my model? def init_dictionaries tables = find_by_sql( "SHOW TABLES FROM thesaurus" ) @@tables = tables.collect{ |t| t.Tables_in_thesaurus } end -- You received this message because you are subscribed to the Google Groups "Ruby

I have an issue where I am getting a large number of records from the database and I cant afford to keep it in the memory due to performance issues. Therefore using the following would be ideal, User.find_each(:batch_size => 5000, :start => 2000) do |user| NewsLetter.weekly_deliver(user) end however, I would like to use find_by_sql since my query is user defined. Question is, is it

Hello all. I am trying to do the equivalent of: @componentlogs = Componentlog.find(:all, :conditions => [ "cl_compname like ?", @criteria ], :offset => offset, :limit => items_per_page, :order => "cl_spr DESC" ) in a find_by_sql statement. I cannot use the build in because the adaptor isn''t quite right (OCI8) When I use it I get the following error

Is a find_by_sql query cached with memcached and cached_model (http://dev.robotcoop.com/Libraries/)? Looks like the answer is no. Is there a reason for this? I have a lot of very complicated querys with a lot of unions, subquerys and joins that would greatly benefit from the cache. Going through the code I can see that the find_by_sql method is changed in cached_model.rb, but it does not call

I was trying to do SUM based mySQL query simliar to the following: SELECT SUM(updated_on - created_on) AS total from signups If I were to run this command in the mySQL console I would get a result. However, if I were to run it using the following command in Rails: Signup.find_by_sql("SELECT SUM(updated_on - created_on) AS total from signups") The query that is written to the log is:

Hi, I''d like to do a "find_by_sql" without a model (e.g. <model name>.find_by_sql("...")) as the results I get back are a once off special, and I''m happy to handle them as an array. How do I do this? "ActiveRecord::Base.find_by_sql(...)" does not seem to work? Background - At the moment I''m doing within a model <model_name>,

How to make it work with paginator (kaminari)? MySQL and full text search: Words (id, word) @words = Word.find_by_sql(["SELECT id, word, MATCH (word) AGAINST (?) AS Score FROM words WHERE MATCH (word) AGAINST (?) ORDER BY Score Desc, word!=?", params[:search],params[:search],params[:search]]) I can''t add .page(params[:page]).per(5) to the end of "find_by_sql()" so

Hi, I''m trying to execute something like this method in a model: def self.sql_for_rankings() sql = "SET @counter:=0;" sql << " SET @counter:=0; SELECT *, @counter:=@counter+1 AS rank FROM testscores. " find_by_sql(sql) end Where the new rank column is a kind of autoincrementer inside of

Hello I have write a code to select data from two tables (T1,T2) but the problem is @tables= T1.find_by_sql("select T1.*,T2.* from T1inner join T2on T1.followup_id = T2.id where followups.userid = ''41'' ") THe problem all values that is returned from running only T1 variables,why? Where are T2 variables?? -- Posted via http://www.ruby-forum.com/.