I am using the latest version of paper_trail gem (2.7.1) After the gem installed and table created I have added "has_paper_trail" in my model and end up with getting "undefined local variable or method has_paper_trail". I tried even with lower versions but still getting the same error.
This is a silly mistake as we need to restart the server after gem installation.
Newbies like me often makes such mistakes. Full credit to Thomas for the kind information.
Related
I have been struggling with rerunning my apps from MAC OS to my windows OS. I have never liked databases. Anyway, the thing is that I cannot even load up my seeds. It looks like it cannot run the pg gem methods. Here's my error
:in `ensure in run': undefined method `close' for nil:NilClass (NoMethodError)
here's the code the method gets stuck on
require_relative('../models/collection')
require_relative('../models/product')
require('pry')
Product.delete_all()
Collection.delete_all()
fw2015 = Collection.new({
'name' => 'Fall Winter 2015/2016'
})
fw2015.add()
I am pretty sure that it's something with postgres. Thank you for your help
This is a gem issue, not a PostgreSQL issue. It is probably relating to the fact that there are binary portions of the gem and they may not be building right. So you need to make sure that you have the PostgreSQL client libraries and header files installed, and that you have all necessary compilers.
Try uninstalling and re-installing the gem and see what errors and warnings show up.
so I just want to extract the longitude/latitude coordinates from a regular address(string). I went to geokit gem documentation and did precisely what was documented, yet I keep getting this error: "NameError: uninitialized constant Geokit::Geocoders::OpenSSL"
I added "geokit" to the gemfile and this:
require 'rubygems'
require 'geokit'
def get_coordinates
#a = Geokit::Geocoders::GoogleGeocoder.geocode '140 Market St, San Francisco, CA'
#a.ll
end
I've also tried adding this before, but to no avail.
Geokit::Geocoders::GoogleGeocoder.api_key = api_key
I just want coordinates, if this isn't a viable solution, can someone recommend another geocoder. I tried the railscasts but couldn't get that to work either. Any help would be greatly appreciated thanks!
Add
require 'openssl'
before
require 'geokit'.
Geokit does not automatically include the required OpenSSL gem.
I had the same problem with an old Rails app running on an old Ubuntu Lucid. I installed an old version of the geokit gem (1.5.0) and it worked.
I saw this post:
Rails/ActiveRecord/SQLite3: Can't save records in test environment
And after upgrading my sqlite version to the very latest (3.7.17), I am still getting the following error:
ActiveRecord::StatementInvalid: SQLite3::SQLException: near "SAVEPOINT": syntax error: SAVEPOINT active_record_1
Any time I try to create anything at all. If all I do is load my fixtures, everything is fine.
I have confirmed that rails is using the updated sqlite3 version by running "rails db".
In my development environment, I can create objects all day long with no errors (I can even have an object create another object after create).
What is special about my test environment that this is happening? How can I fix it?
Edit:
If I delete my test database, and redo rake:db:create and rake:db:migrate, I still get the same issues.
Doing "rails console test" lets me use the test environment just fine, and I can create objects all day long and see existing fixtures. It's only when I type "rake test:units" that I get the errors... (originally I had errors, but one error was legitimate (I don't know why I wasn't getting it in the development environment, and the adapter error was because apparently you aren't supposed to do "rails console RAILS_ENV="test", so it was looking for an adapter for an envrionment called "RAILS_ENV=test")
Edit: When I type "gem uninstall sqlite3" it uninstalls. When I then type "bundle install" it has a problem reinstalling...working on it now.
/home/jenny/.rvm/rubies/ruby-1.9.3-p0/bin/ruby extconf.rb --with-sqlite3-dir=/usr/local/bin/sqlite3 checking for sqlite3.h... *** extconf.rb failed *** Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check
the mkmf.log file for more details. You may need configuration
options.
If I type "gem install sqlite3" separately, it works just fine, and then "bundle install" it works. However, "rake test:units" has the same errors.
Edit:
When I type "which sqlite3" it prints out "/usr/local/bin/sqlite3"
I wasn't even aware sqlite3 headers were a thing, so I doubt I installed them. I'll try to figure out how to confirm this and see if it helps.
Edit:
I don't see anywhere to download sqlite3 headers on the main site...just source and the precompiled linux binary. There doesn't seem to be a special header in the source, but even if there was, wouldn't it be included in the precompiled binary?
EDIT: link to bundler sqlite3 install error that don't happen when i manually install the gem
http://pastie.org/8063577
EDIT: Not a devise problem. I thought it was, but it turned out I was just creating another object in fixtures, not in the test code.
So, I can create devise User or any other type of object in fixtures all day long, but if I attempt to create one in the unit test, I get the save point error. Same thing for trying to save a fixture in a unit test.
Your problem is most likely related to the fact that you updated your local sqlite but after that you haven't reinstalled your sqlite3 gem.
I'd recommend you follow these steps:
Remove the corresponding line gem 'sqlite3' from your Gemfile
Run bundle install
Run gem uninstall sqlite3
Return the line gem 'sqlite3' to your Gemfile
Run bundle install one more time
If you simply gem uninstall and then bundle install, it will install the same version and dependencies that were recorded in Gemfile.lock. But since you're now using a different and more updated local version, it's safer to allow Bundler to install a new version if needed.
This question was asked before here, but can't say that the answer helps me. I am using Rails 3.1.3. When I run rails console on my local dev machine, I get the following message:
no such file to load -- map_by_method
The message doesn't prevent the irb session from launching, so it's benign. But I'd like to get rid of it. At one point in time I had the map_by_method gem installed, but I removed it from the Gemfile and gemset -- yet the message still appears. Any idea how to vanquish it?
there might be some causes for this:
there might be some other gem which has it as a dependency
you might have a require 'map_by_method' in your code
you might have a require in your .irbrc
the .irbrc can be located in your user home or in the current working directory.
have a look at an example .irbrc here: http://matthewhutchinson.net/2010/9/19/rails-3-bash-aliases-and-irbrc-configs
Probably the gem map_by_method has done some permanent changes on your system. Try re-installing it. It should fixed your problem. Same thing happened to me once. If it doesn't, try specifying it in development section of gemfile.
I have a question about what is probably a gems problem, but may be meta-where. I used gems to install meta_where-1.0.4, and the response was that I succeeded and the uri for meta_where was provided, but when I tried a where-condition in the search method of a controller, similar to this example that meta-where provides:
Person.where(:skill_set.matches => 'Hello%'
an error was reported:
"undefined method 'matches' for :skill_set:Symbol"
It's as if the gem's methods aren't being accessed. I tried using "require" but that didn't help.
I'm using Windows XP, Firefox, Ruby 1.9.2.
What do I need to do?
Thanks, Barney
I assume you have run the migrations and there is a skill_set attribute in the person table: you don't need require. Just add 'gem meta_where' to your Gemfile and then run 'bundle install'.