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PORails help after update error NoMethodError
 

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  1. PORails help after update error NoMethodError
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    <p>I get this error when I have updated my konkurrancer:</p> <pre><code>Started POST "/konkurrancers/rate/1" for 127.0.0.1 at 2011-05-02 18:52:31 +0200 Processing by KonkurrancersController#rate as */* Parameters: {"utf8"=&gt;"Ô£ô", "authenticity_token"=&gt;"y2ut0YoqeUPT9z/5GBI1SDtzYIW KjAtRI8fkG2e2Yi0=", "vind"=&gt;{"ratings"=&gt;"6"}, "id"=&gt;"1"} ←[1m←[35mSQL (0.0ms)←[0m describe `kategoris_konkurrancers` ←[1m←[36mKonkurrancer Load (0.0ms)←[0m ←[1mSELECT `konkurrancers`.* FROM `kon kurrancers`←[0m ←[1m←[35mCACHE (0.0ms)←[0m SELECT `konkurrancers`.* FROM `konkurrancers` ←[1m←[36mCACHE (0.0ms)←[0m ←[1mSELECT `konkurrancers`.* FROM `konkurrancers`← [0m ←[1m←[35mTag Load (0.0ms)←[0m SELECT `tags`.* FROM `tags` ←[1m←[36mSQL (0.0ms)←[0m ←[1mSELECT COUNT(*) FROM `konkurrancers` INNER JOIN `tagsmenus` ON `konkurrancers`.id = `tagsmenus`.konkurrancer_id WHERE ((`tagsmen us`.tag_id = 11))←[0m ←[1m←[35mSQL (0.0ms)←[0m SELECT COUNT(*) FROM `konkurrancers` INNER JOIN `tag smenus` ON `konkurrancers`.id = `tagsmenus`.konkurrancer_id WHERE ((`tagsmenus`. tag_id = 12)) ←[1m←[36mSQL (0.0ms)←[0m ←[1mSELECT COUNT(*) FROM `konkurrancers` INNER JOIN `tagsmenus` ON `konkurrancers`.id = `tagsmenus`.konkurrancer_id WHERE ((`tagsmen us`.tag_id = 13))←[0m ←[1m←[35mSQL (0.0ms)←[0m SELECT COUNT(*) FROM `konkurrancers` INNER JOIN `tag smenus` ON `konkurrancers`.id = `tagsmenus`.konkurrancer_id WHERE ((`tagsmenus`. tag_id = 14)) ←[1m←[36mSQL (0.0ms)←[0m ←[1mSELECT COUNT(*) FROM `konkurrancers` INNER JOIN `tagsmenus` ON `konkurrancers`.id = `tagsmenus`.konkurrancer_id WHERE ((`tagsmen us`.tag_id = 15))←[0m ←[1m←[35mSQL (0.0ms)←[0m SELECT COUNT(*) FROM `konkurrancers` INNER JOIN `tag smenus` ON `konkurrancers`.id = `tagsmenus`.konkurrancer_id WHERE ((`tagsmenus`. tag_id = 16)) ←[1m←[36mSQL (0.0ms)←[0m ←[1mSELECT COUNT(*) FROM `konkurrancers` INNER JOIN `tagsmenus` ON `konkurrancers`.id = `tagsmenus`.konkurrancer_id WHERE ((`tagsmen us`.tag_id = 20))←[0m ←[1m←[35mSQL (0.0ms)←[0m SELECT COUNT(*) FROM `konkurrancers` INNER JOIN `tag smenus` ON `konkurrancers`.id = `tagsmenus`.konkurrancer_id WHERE ((`tagsmenus`. tag_id = 21)) ←[1m←[36mSQL (0.0ms)←[0m ←[1mSELECT COUNT(*) FROM `konkurrancers` INNER JOIN `tagsmenus` ON `konkurrancers`.id = `tagsmenus`.konkurrancer_id WHERE ((`tagsmen us`.tag_id = 22))←[0m ←[1m←[35mSQL (0.0ms)←[0m SELECT COUNT(*) FROM `konkurrancers` INNER JOIN `tag smenus` ON `konkurrancers`.id = `tagsmenus`.konkurrancer_id WHERE ((`tagsmenus`. tag_id = 23)) ←[1m←[36mSQL (0.0ms)←[0m ←[1mSELECT COUNT(*) FROM `konkurrancers` INNER JOIN `tagsmenus` ON `konkurrancers`.id = `tagsmenus`.konkurrancer_id WHERE ((`tagsmen us`.tag_id = 24))←[0m ←[1m←[35mSQL (0.0ms)←[0m SELECT COUNT(*) FROM `konkurrancers` INNER JOIN `tag smenus` ON `konkurrancers`.id = `tagsmenus`.konkurrancer_id WHERE ((`tagsmenus`. tag_id = 25)) ←[1m←[36mSQL (0.0ms)←[0m ←[1mSELECT COUNT(*) FROM `konkurrancers` INNER JOIN `tagsmenus` ON `konkurrancers`.id = `tagsmenus`.konkurrancer_id WHERE ((`tagsmen us`.tag_id = 26))←[0m ←[1m←[35mSQL (0.0ms)←[0m SELECT COUNT(*) FROM `konkurrancers` INNER JOIN `tag smenus` ON `konkurrancers`.id = `tagsmenus`.konkurrancer_id WHERE ((`tagsmenus`. tag_id = 29)) ←[1m←[36mSQL (0.0ms)←[0m ←[1mSELECT COUNT(*) FROM `konkurrancers` INNER JOIN `tagsmenus` ON `konkurrancers`.id = `tagsmenus`.konkurrancer_id WHERE ((`tagsmen us`.tag_id = 30))←[0m ←[1m←[35mKonkurrancer Load (0.0ms)←[0m SELECT `konkurrancers`.* FROM `konkurr ancers` WHERE (`konkurrancers`.`cached_slug` = '1') LIMIT 1 ←[1m←[36mSQL (0.0ms)←[0m ←[1mSELECT sluggable_id FROM slugs WHERE ((slugs.slu ggable_type = 'Konkurrancer' AND slugs.name = '1' AND slugs.sequence = 1))←[0m ←[1m←[35mKonkurrancer Load (0.0ms)←[0m SELECT `konkurrancers`.* FROM `konkurr ancers` WHERE (`konkurrancers`.`id` = 1) LIMIT 1 Completed in 390ms NoMethodError (You have a nil object when you didn't expect it! You might have expected an instance of Array. The error occurred while evaluating nil.+): app/controllers/konkurrancers_controller.rb:7:in `rate' Rendered C:/Ruby192/lib/ruby/gems/1.9.1/gems/actionpack-3.0.3/lib/action_dispatc h/middleware/templates/rescues/_trace.erb (15.6ms) ←[1m←[36mKonkurrancer Load (0.0ms)←[0m ←[1mSELECT `konkurrancers`.* FROM `kon kurrancers` LIMIT 15 OFFSET 0←[0m ←[1m←[35mSQL (0.0ms)←[0m SHOW TABLES ←[1m←[36mSQL (0.0ms)←[0m ←[1mSHOW TABLES←[0m Rendered C:/Ruby192/lib/ruby/gems/1.9.1/gems/actionpack-3.0.3/lib/action_dispatc h/middleware/templates/rescues/_request_and_response.erb (374.4ms) Rendered C:/Ruby192/lib/ruby/gems/1.9.1/gems/actionpack-3.0.3/lib/action_dispatc h/middleware/templates/rescues/diagnostics.erb within rescues/layout (421.2ms) </code></pre> <p>My controller: </p> <pre><code>class KonkurrancersController &lt; ApplicationController def rate @konkurrancer = Konkurrancer.find(params[:id]) @container = "Konkurrancer"+@konkurrancer.id.to_s @konkurrancer.rating_score += params[:vind][:ratings].to_i @konkurrancer.ratings += 1 @konkurrancer.save respond_to do |format| format.js end end </code></pre> <p>My model:</p> <pre><code>class Konkurrancer &lt; ActiveRecord::Base attr_accessible :ratings, :rating_score, :rating after_update :do_foobar def rating self[:rating] || (rating_score/rating) end def to_param self.name end def do_foobar rating_score = self.rating_score ratings = self.ratings rating = (rating_score/ratings) self.update_attributes(:rating =&gt; rating) end protected def assign_cached_slug self.cached_slug = self.name.gsub(/\s+/, '_').gsub(/[^\w\-]/, '') end end </code></pre> <p>My table:</p> <pre><code>rating_score =&gt; The current score ratings =&gt; The number of ratings which led to the score rating =&gt; The current rating </code></pre> <p>EDIT:</p> <p>My error:</p> <pre><code>rancers`.`id` = 1)←[0m ←[1m←[35mAREL (1.0ms)←[0m UPDATE `konkurrancers` SET `rating_score` = 6, `rat ings` = 1, `updated_at` = '2011-05-02 18:30:45', `rating` = 6 WHERE (`konkurranc ers`.`id` = 1) ←[1m←[36mAREL (1.0ms)←[0m ←[1mUPDATE `konkurrancers` SET `rating_score` = 6, `ratings` = 1, `updated_at` = '2011-05-02 18:30:45', `rating` = 6 WHERE (`konkur rancers`.`id` = 1)←[0m ←[1m←[35mAREL (1.0ms)←[0m UPDATE `konkurrancers` SET `rating_score` = 6, `rat ings` = 1, `updated_at` = '2011-05-02 18:30:45', `rating` = 6 WHERE (`konkurranc ers`.`id` = 1) ←[1m←[36mSQL (41.0ms)←[0m ←[1mROLLBACK←[0m Completed in 2397ms SystemStackError (stack level too deep): Rendered C:/Ruby192/lib/ruby/gems/1.9.1/gems/actionpack-3.0.3/lib/action_dispatc h/middleware/templates/rescues/_trace.erb (2.0ms) ←[1m←[35mKonkurrancer Load (1.0ms)←[0m SELECT `konkurrancers`.* FROM `konkurr ancers` LIMIT 15 OFFSET 0 ←[1m←[36mSQL (5.0ms)←[0m ←[1mSHOW TABLES←[0m ←[1m←[35mSQL (5.0ms)←[0m SHOW TABLES Rendered C:/Ruby192/lib/ruby/gems/1.9.1/gems/actionpack-3.0.3/lib/action_dispatc h/middleware/templates/rescues/_request_and_response.erb (610.0ms) Rendered C:/Ruby192/lib/ruby/gems/1.9.1/gems/actionpack-3.0.3/lib/action_dispatc h/middleware/templates/rescues/diagnostics.erb within rescues/layout (676.0ms) </code></pre> <p>My model:</p> <pre><code>class Konkurrancer &lt; ActiveRecord::Base attr_accessible :ratings, :rating_score, :rating after_update :do_foobar after_initialize :init def rating self[:rating] || (rating_score/rating) end def init self.rating_score ||= 0 end def to_param self.name end def do_foobar rating_score = self.rating_score ratings = self.ratings rating = (rating_score/ratings) self.update_attributes(:rating =&gt; rating) end protected def assign_cached_slug self.cached_slug = self.name.gsub(/\s+/, '_').gsub(/[^\w\-]/, '') end end def tag_tokens=(ids) self.tag_ids = ids.split(",") end </code></pre> <p>My controller:</p> <pre><code>class KonkurrancersController &lt; ApplicationController def rate @konkurrancer = Konkurrancer.find(params[:id]) @container = "Konkurrancer"+@konkurrancer.id.to_s @konkurrancer.rating_score += params[:vind][:ratings].to_i @konkurrancer.ratings += 1 @konkurrancer.save respond_to do |format| format.js end end end </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USRails beginner
    1. USRails beginner
    plurals
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. This table or related slice is empty.
 

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