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I want to build a one page finance calculator in Rails. The form has several fields on it. When I press the calculate button it will return to the same page with the answer. If there is an error it will also return to the same page with the appropriate error messages. I want it to be able to 1. Carry over all the values on the form fields 2. Use the rails validation methods How can I acheive

hi there. Here is the simple scenario: My active record connects to a table that contains an integer field. My form contains a text box that allows me to enter a value to get updated to the integer field. If anything gets entered that is anything other than a POSITIVE INTEGER, I want to display an error. I have noticed that if I create a new active record like @record =

hi there, I am about to embark on a mission critical financial web application, and was wondering weather ruby on rails is the best fit for this type of project. More specifically I am worried about floating point errors. Would it be more appropriate to use a more statically typed framework (.NET)? thankyou. -- Posted via http://www.ruby-forum.com/.

I want to build a one page finance calculator in Rails. The form has several fields on it. When I press the calculate button it will return to the same page with the answer. If there is an error it will also return to the same page with the appropriate error messages. I want it to be able to 1. Carry over all the values on the form fields 2. Use the rails validation methods How can I acheive

I would like to validate a number within a certain range. To first test that a entry is a valid number i use validates_numericality_of :my_number, :message =>''sorry, not a number'' to test if the number is within a certain range i use validates_inclusion of :my_number, :in => min..max, message => ''outside range!'' If the numericality test fails, I