nomethoderror
Rails NoMethodError in controller
this is in my controller def results #searches with tags @pictures = Picture.all @alltags = Tag.all searchkey = params[\'my_input\'][详细]
2023-04-13 07:32 分类：问答Ruby Koans Scoring Project. undefined method `length' for nil:NilClass
I am BRAND new to Ruby, and programing in general. I\'m working my way through the Ruby Koans. I\'ve made it up to 176/274 before getting stuck.[详细]
2023-04-06 18:21 分类：问答Rails + CarrierWave: NoMethodError: undefined method `name' for nil:NilClass
I am using CarrierWave with Rails 3.1. I am getting the following error message when I submit the form (trying to upload an image):[详细]
2023-04-06 05:46 分类：问答Devise not working after update, Tests via capybara complete without failures
I\'m quite new to RoR and programmed a couple of things before discovering Test-Driven-Development. So I tried to write some tests with guard-rspec and capybara. All was fine, but I got some deprecati[详细]
2023-04-03 21:12 分类：问答NoMethodError In Ruby
I have a bit of ruby code: def createCal(cal) mod = @on + @off #line creating error. @daycount = 0 cal end[详细]
2023-04-02 17:36 分类：问答How to implement simple search form to be used in conjunction with paginate?
I am following Ryan Bates\' railcasts: http://railscasts.com/episodes/37-simple-search-form in solving my issue with the search results on a page with will-paginate.[详细]
2023-04-02 13:09 分类：问答Undefined method 'status' for nil:nilclass
Ok weird error. Everything was working fine.. and now its not. Currently I have a simple many to one association.[详细]
2023-04-02 11:20 分类：问答Creating view for adding nested resource in Ruby on Rails app
I\'m making a RoR app that has 3 resources, that are nested in this order: Projects -> Feeds -> XML_Fields.Projects has_many Feeds, Feeds has_many XML_Fields.My problem is that I am getting stuck on a[详细]
2023-04-01 16:53 分类：问答Relationship clasess has attribute error
Why relationship classes attribute is not attribute? $ rs = ResourceServer.new => #<ResourceServer id: nil, resource_id: nil, server_id: nil, created_at: nil, updated_at: nil>[详细]
2023-04-01 10:19 分类：问答Using checkboxes in rails
I\'ve never used checkboxes in rails before and can\'t figure out what I\'m doing wrong.When I try to load my page, I get an error that says NoMethodError in Dplans#show, undefined method \"merge\" fo[详细]
2023-03-30 15:25 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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