ruby-on-rails Archives - Page 4 of 19

There is a handy dynamic attribute in active-record called find_or_create_by: Model.find_or_create_by_<attribute>(:<attribute> => "") But what if I need to find_or_create by more than ...

May 30, 2022
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MySQL, Programming

IT Nursery

Library not loaded: libmysqlclient.16.dylib error when trying to run ‘rails server’ on OS X 10.6 with mysql2 gem

I’ve been struggling with this for some time. I’ve installed Rails 3, gem, mysql on my Snow Leopard machine. All was going well ...

May 30, 2022
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Programming, ruby-on-rails

IT Nursery

What is causing this ActiveRecord::ReadOnlyRecord error?

This follows this prior question, which was answered. I actually discovered I could remove a join from that query, so now the working ...

May 30, 2022
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Programming, ruby-on-rails

IT Nursery

delete_all vs destroy_all?

I am looking for the best approach to delete records from a table. For instance, I have a user whose user ID is ...

May 30, 2022
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Programming, ruby-on-rails

IT Nursery

What do the &,

Up until now I have only used database.yml with each parameter called out explicitly, in the file below it uses some characters I ...

May 29, 2022
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Programming, ruby-on-rails

IT Nursery

Rails: How to reference images in CSS within Rails 4

There’s a strange issue with Rails 4 on Heroku. When images are compiled they have hashes added to them, yet the reference to ...

May 29, 2022
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Programming, ruby-on-rails

IT Nursery

Rails new vs create

Why is there a need to define a new method in RESTful controller, follow it up with a create method? Google search didn’t ...

May 29, 2022
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Programming, ruby-on-rails

IT Nursery

Passing parameters in rails redirect_to

How do we pass parameters in redirect_to in rails? I know we can pass id using this: redirect_to :action => action_name,:id => 3 ...

May 29, 2022
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