I am trying to write lines from an input form to a CSV file from a string in a Rails model:
def form_to_csv
file = CSV.open('temp.csv', 'w+') do |csv|
self.input_data.split("\n").each do |line|
csv << line
end
end
input_data_file = InputDataFile.new(file: file)
self.input_data_file = input_data_file
end
However I get the error:
undefined method `map' for "...":String Did you mean? tap
Full error:
[FATAL] NoMethodError (undefined method `map' for "one\r":String Did you mean? tap):
[FATAL] app/models/job_request.rb:112:in `block (2 levels) in form_to_csv'
[FATAL] app/models/job_request.rb:111:in `each'
[FATAL] app/models/job_request.rb:111:in `block in form_to_csv'
[FATAL] app/models/job_request.rb:110:in `form_to_csv'
[FATAL] app/controllers/job_requests_controller.rb:21:in `create'
Any ideas welcome.
It looks like input_data is a method that calls map on a string.
If you're not sure what's going on, you could add a pry or byebug in app/models/job_request.rb:111, then run the form_to_csv method so it pauses execution at the point of error.
I'll guess you would be surprised at the value/datatype of a certain variable ...
Related
Rails 6.1.3.1
Rspec
basic behavior spec code:
describe "index" do
it "should show me the list" do
visit dashboard_targets_path
end
end
the routes file
namespace :dashboard do
resources :targets
end
error shows me the exception, but strangely it appears as if it isn't calling through to the app, just fails right in my test code:
1) interaction for Dashboard::TargetsController index should show me the list
Failure/Error: visit dashboard_targets_path
NoMethodError:
undefined method `empty?' for nil:NilClass
# ./spec/system/dashboard/targets_behavior_spec.rb:16:in `block (3 levels) in <top (required)>'
# /Users/jason/.rvm/gems/ruby-2.6.6/gems/webmock-3.12.2/lib/webmock/rspec.rb:37:in `block (2 levels) in <main>'
# /Users/jason/.rvm/gems/ruby-2.6.6/gems/rspec-wait-0.0.9/lib/rspec/wait.rb:46:in `block (2 levels) in <main>'
it seems to be failing inside the test code, if I drop into the debugger there and run dashboard_targets_path directly I also get the same exception, so the problem is just using the helper within the TEST ENVIRONMENT
within the dev environment, this function works
the problem here was the the config/environments/test.rb file does have default_url_options.
config.action_mailer.default_url_options = { host: 'localhost', port: 3000 }
when you hit errors that disappear into the Rails gems, a good way to debug them is like so:
begin
// your failing code here
rescue StandardError => e
puts e.backtrace
byebug
puts e.inspect
raise (e)
end
WARNING: do not leave this code in your app or check it in unless you explicitly want to use exception handling for flow control (not recommended!). This is recommended ONLY for debugging purposes.
here you will see the full backtrace to the line number in the Gem where it is failing. when debugging Gems be careful— remember to un-do any changes you make and know that your monkey-patching inside of the Gem code doesn't affect your production code.
I am trying to test my application and I continually get the following error:
Error:
ContractsControllerTest#test_should_get_show:
ActiveRecord::Fixture::FormatError: ActiveRecord::Fixture::FormatError
Error:
ContractsControllerTest#test_should_get_show:
NoMethodError: undefined method `each' for nil:NilClass
Below is the code on my contract controller and I have similar code like this on all the controllers.
def index
#contract = Contract.all.paginate(page: params[:page], :per_page => 70)
end
def show
#contract = Contract.find(params[:id])
end
def new
#contract = Contract.new
end
def create
#contract = Contract.new(located)
if #contract.save
flash[:success] = "A record has been successfully added"
redirect_to contracts_path
else
render 'new'
end
end
def located
params.require(:contract).permit(:contract_name, :contract_status, :services_rendered, :contract_value, :award_year)
end
# editing a record in the contract from cotract table
def edit
#contract = Contract.find(params[:id])
end
def update
#contract = Contract.find(params[:id])
if #contract.update_attributes(located)
flash[:success] = "Contract form updated"
redirect_to contracts_path
else
render'edit'
end
end
def destroy
Contract.find(params[:id]).destroy
flash[:success] = "A record has been successfully deleted"
redirect_to contracts_path
end
Below is the full trace of the error when I run the command rails db:fixtures:load --trace
rails aborted!
ActiveRecord::Fixture::FormatError: ActiveRecord::Fixture::FormatError
/usr/local/rvm/gems/ruby-2.3.0/gems/activerecord-
5.0.5/lib/active_record/fixture_set/file.rb:72:in `validate'
/usr/local/rvm/gems/ruby-2.3.0/gems/activerecord-
5.0.5/lib/active_record/fixture_set/file.rb:49:in `raw_rows'
/usr/local/rvm/gems/ruby-2.3.0/gems/activerecord-
5.0.5/lib/active_record/fixture_set/file.rb:37:in `config_row'
/usr/local/rvm/gems/ruby-2.3.0/gems/activerecord-
5.0.5/lib/active_record/fixture_set/file.rb:27:in `model_class'
/usr/local/rvm/gems/ruby-2.3.0/gems/activerecord-
5.0.5/lib/active_record/fixtures.rb:791:in `block (2 levels) in
read_fixture_files'
/usr/local/rvm/gems/ruby-2.3.0/gems/activerecord-
5.0.5/lib/active_record/fixture_set/file.rb:15:in `open'
/usr/local/rvm/gems/ruby-2.3.0/gems/activerecord-
5.0.5/lib/active_record/fixtures.rb:790:in `block in read_fixture_files'
/usr/local/rvm/gems/ruby-2.3.0/gems/activerecord-
5.0.5/lib/active_record/fixtures.rb:789:in `each'
/usr/local/rvm/gems/ruby-2.3.0/gems/activerecord-
5.0.5/lib/active_record/fixtures.rb:789:in `each_with_object'
/usr/local/rvm/gems/ruby-2.3.0/gems/activerecord-
5.0.5/lib/active_record/fixtures.rb:789:in `read_fixture_files'
/usr/local/rvm/gems/ruby-2.3.0/gems/activerecord-
5.0.5/lib/active_record/fixtures.rb:598:in `initialize'
/usr/local/rvm/gems/ruby-2.3.0/gems/activerecord-
5.0.5/lib/active_record/fixtures.rb:529:in `new'
/usr/local/rvm/gems/ruby-2.3.0/gems/activerecord-
5.0.5/lib/active_record/fixtures.rb:529:in `block (2 levels) in
create_fixtures'
/usr/local/rvm/gems/ruby-2.3.0/gems/activerecord-
5.0.5/lib/active_record/fixtures.rb:526:in `map'
/usr/local/rvm/gems/ruby-2.3.0/gems/activerecord-
5.0.5/lib/active_record/fixtures.rb:526:in `block in create_fixtures'
/usr/local/rvm/gems/ruby-2.3.0/gems/activerecord-
5.0.5/lib/active_record/connection_adapters/postgresql/referential_integrity.rb: 22:in `disable_referential_integrity'
/usr/local/rvm/gems/ruby-2.3.0/gems/activerecord-
5.0.5/lib/active_record/fixtures.rb:523:in `create_fixtures'
/usr/local/rvm/gems/ruby-2.3.0/gems/activerecord-
5.0.5/lib/active_record/railties/databases.rake:207:in `block (3 levels) in
<top (required)>'
/usr/local/rvm/gems/ruby-2.3.0/gems/railties-
5.0.5/lib/rails/commands/rake_proxy.rb:14:in `block in run_rake_task'
/usr/local/rvm/gems/ruby-2.3.0/gems/railties-
5.0.5/lib/rails/commands/rake_proxy.rb:11:in `run_rake_task'
/usr/local/rvm/gems/ruby-2.3.0/gems/railties-
5.0.5/lib/rails/commands/commands_tasks.rb:51:in `run_command!'
/usr/local/rvm/gems/ruby-2.3.0/gems/railties-
5.0.5/lib/rails/commands.rb:18:in `<top (required)>'
/home/ubuntu/workspace/final_project/bin/rails:9:in `require'
/home/ubuntu/workspace/final_project/bin/rails:9:in `<top (required)>'
/usr/local/rvm/gems/ruby-2.3.0/gems/spring-
2.0.2/lib/spring/client/rails.rb:28:in `load'
/usr/local/rvm/gems/ruby-2.3.0/gems/spring-
2.0.2/lib/spring/client/rails.rb:28:in `call'
/usr/local/rvm/gems/ruby-2.3.0/gems/spring-
2.0.2/lib/spring/client/command.rb:7:in `call'
/usr/local/rvm/gems/ruby-2.3.0/gems/spring-2.0.2/lib/spring/client.rb:30:in
`run'
/usr/local/rvm/gems/ruby-2.3.0/gems/spring-2.0.2/bin/spring:49:in `<top
(required)>'
/usr/local/rvm/gems/ruby-2.3.0/gems/spring-
2.0.2/lib/spring/binstub.rb:31:in `load'
/usr/local/rvm/gems/ruby-2.3.0/gems/spring-
2.0.2/lib/spring/binstub.rb:31:in`<top (required)>'
/home/ubuntu/workspace/final_project/bin/spring:15:in `require'
/home/ubuntu/workspace/final_project/bin/spring:15:in `<top (required)>'
bin/rails:3:in `load'
bin/rails:3:in `<main>'
Tasks: TOP => db:fixtures:load
(See full trace by running task with --trace)
My application containts 12 controllers, the same error occurs in each of the controllers. Also, I have 10 tables in my schema some of which contain references / relations to each other.
I don't really know what is wrong and I have be struggling with this problem for about four days now. I would be grateful if anyone could help me with any code or information that could help me to trace the source of the error. I would also be grateful if you could provide information for exactly where I should place the code to trace and solve this error.
Thanks
One of your fixture files in test/fixtures has bad formatting. The problem does not appear to be with your controllers or tests since it is happening for every single one of them. All of the fixtures get loaded into the test database before every single test, even if some are not used for the current test. So if there is an error in one of these files it will get raised for every test.
According to the line from the activerecord source that is throwing the error at the top of the stack trace you've provided, ActiveRecord is expecting every entry in your YAML fixture file to be a key which references a hash.
Each entry in a fixture should represent a model instance. The top level key is used as a name to reference that instance (rails usually names them one and two when generating the fixture template for a new model). Here is an example YAML fixture with one good entry and a few different types of bad ones.
# This will produce a hash associated to key :hash_entry.
# This is the correct type of entry, all others that follow are incorrect for rails fixtures.
hash_entry:
key1: value1
key2: value2
# This will produce the string "not a hash" associated to key :string_entry
string_entry: not a hash
# This will produce the array ["also", "not","a","hash"] associated to key :array_entry
array_entry:
- also
- not
- a
- hash
# This will produce nil associated to key :nil_entry
nil_entry:
You need to examine your fixtures files in test/fixtures and look for any that have the bad formatting as described above. Here is a rake task that will help you identify which files and entries need to be corrected. First run rails g task fixtures check_format, and place this code inside of the rake file that gets generated at lib/tasks/fixtures.rake.
namespace :fixtures do
desc "Looks for bad fixture files"
task check_format: :environment do
fixtures_dir = Rails.root.join("test", "fixtures")
fixture_files = Pathname.glob("#{fixtures_dir}/**/*.yml")
fixture_files.each do |file|
fixture = YAML.load(IO.read(file))
fixture.each_pair do |name, entry|
puts "Bad fixture entry #{name}: #{entry.inspect} in fixture #{file}" unless entry.is_a? Hash
end
end
end
end
Then run rails fixtures:check_format and the offending files and entries will be printed out on the command line for you to find and correct.
Since google did not help me in my quest to figure this out, I figured I would share it for anyone else that runs into this problem:
When attempting to save a model, I get
NoMethodError: undefined method `messages' for []:Array
0: /.../active_record/autosave_association.rb:491:in `_ensure_no_duplicate_errors'
1: /.../active_support/callbacks.rb:413:in `block in make_lambda'
2: /.../active_support/callbacks.rb:246:in `block in halting'
3: /.../active_support/callbacks.rb:511:in `block in invoke_after'
4: /.../active_support/callbacks.rb:511:in `each'
5: /.../active_support/callbacks.rb:511:in `invoke_after'
6: /.../active_support/callbacks.rb:132:in `run_callbacks'
7: /.../active_support/callbacks.rb:825:in `_run_validation_callbacks'
8: /.../active_model/validations/callbacks.rb:110:in `run_validations!'
9: /.../active_model/validations.rb:335:in `valid?'
Example model:
class Foo < ActiveRecord::Base
def do_stuff
#errors = []
#errors << 'Bad stuff' if self.bar > 4
#errors
end
end
Example code:
foo = Foo.first
foo.do_stuff
foo.save # or foo.valid?, etc.
The Cause
The cause of this error message is that the Foo class creates an instance level #errors variable.
ActiveRecord keeps track of database errors in a model's errors variable. When you try to validate a model, it checks for error messages in this variable.
The Solution
Change #errors to a different name (e.g. #foo_errors).
so how is that possible?
I have a Module, that puts a Ruby Object at the end of the renderd page in a nice structured HTML. So i recurse through the given object and build the HTML output. The following is an excerpt of the code where the error is thrown.
EDIT:(had a copy error in code)
o=some object
nicer=if o.respond_to?(:empty?) and o.empty?
add_class='empty'
'empty ' + class_name
else
case o
when TrueClass then
"TRUE"
when FalseClass then
"FALSE"
when Array
#some more when's
the error thrown: undefined method 'empty?' for #Journey::Routes:0x123456
the object (o) it self is ActionDispatch::Routing::RouteSet
again: how is that possible?
EDIT: Stack: (there is the bad one ...)
actionpack (3.2.13) lib/action_dispatch/routing/route_set.rb:366:in `empty?'
lib/tech_draw.rb:90:in `format_nice'
lib/tech_draw.rb:101:in `block in format_nice'
lib/tech_draw.rb:100:in `each'
lib/tech_draw.rb:100:in `map'
lib/tech_draw.rb:100:in `format_nice'
lib/tech_draw.rb:124:in `block in format_nice'
lib/tech_draw.rb:123:in `map'
lib/tech_draw.rb:123:in `format_nice'
lib/tech_draw.rb:13:in `block in say'
lib/tech_draw.rb:13:in `map'
lib/tech_draw.rb:13:in `say'
lib/tech_draw.rb:13:in `map'
lib/tech_draw.rb:6:in `say'
app/controllers/home_controller.rb:131:in `any_page'
actionpack (3.2.13) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
...
How is that possible? Easy:
class Thing
def respond_to? *args
true
end
end
o = Thing.new
o.respond_to?(:empty?) and o.empty?
# => NoMethodError: undefined method `empty?' for #<Thing:0x00000100ae2558>
Although why is it happening in this case is another matter.
ActionDispatch::Routing::RouteSet#empty? appears to call empty? on routes object. Assuming this object is an instance of Journey::Routes that would explain the error, as Journey::Routes doesn’t have an empty? method. (In current Rails versions Journey is part of Rails itself, but in Rails 3.2 it is separate).
I don’t why this is happening in your case though.
I know this has to be something stupid, but I keep getting the following error in one of my examples:
undefined method `new' for #<Class:0x211d274>
I have created a simple example to show the error:
describe LateCharge do
before :each do
#membership = Membership.new
#location = mock_model(Location, :late_payment_rate => 10)
end
it "should initialize" do
LateCharge.respond_to?('new').should == true
#charge = LateCharge.new(#membership, #location)
end
end
The strange part is, when I run the example by itself, it passes. When I run it with all my examples, it fails with the following error:
NoMethodError in 'LateCharge should initialize'
undefined method `new' for #<Class:0x211d274>
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:1964:in `method_missing_without_paginate'
/Users/l33/.gem/ruby/1.8/gems/mislav-will_paginate-2.3.11/lib/will_paginate/finder.rb:170:in `method_missing'
./spec/models/late_charge_spec.rb:15:
It is failing on the line: #charge = LateCharge.new(#membership, #location)
I do not have any problems instantiating the LateCharge object at run time or from the console.
Anyone have any ideas?
Seems to me the following information is key to your issue:
will_paginate/finder.rb:170:in `method_missing'
Hey Lee - not sure if you're still having this problem, but I had the exact same thing and it's because another spec I had was unstubbing the function.