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I used to put Global variables in environment.rb with my Rails 2.3.8 application such as:
MAX_ALLOWD_ITEMS = 6 It doesn't seem to work in Rails 3. I tried putting it in application.rb and that didn't help.
What do you suggest?
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We mostly declare global variables at the top of a module file. Any function we define at any point in the program can change any global variable. The function printName() can access the global variable companyName even though it is declared outside the function.
Global Variable has global scope and accessible from anywhere in the program. Assigning to global variables from any point in the program has global implications. Global variable are always prefixed with a dollar sign ($).
What is Variable Scope? Scope defines where in a program a variable is accessible. Ruby has four types of variable scope, local, global, instance and class.
Local Variables: A local variable name always starts with a lowercase letter(a-z) or underscore (_). These variables are local to the code construct in which they are declared. A local variable is only accessible within the block of its initialization. Local variables are not available outside the method.
If you have already tried restarting your server as Ryan suggested, try putting it in your application.rb like this:
module MyAppName class Application < Rails::Application YOUR_GLOBAL_VAR = "test" end end Then you can call it with the namespace in your controllers, views or wherever..
MyAppName::Application::YOUR_GLOBAL_VAR Another alternative would be using something like settingslogic. With settingslogic, you just create a yml config file and a model (Settings.rb) that points to the config file. Then you can access these settings anywhere in your rails app with:
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