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Rails Model, View, Controller, and Helper: what goes where?

...summarized) by the Model, or generated from the Controller. If your View really needs to do processing that can't be done by the Model or Controller, put the code in a Helper. Lots of Ruby code in a View makes the pages markup hard to read. Model: Your model should be where all your code that rela...
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Checkbox for nullable boolean

...iad of different reasons why the foo input might not appear on the page at all. If it does appear I can assume there's a value, but I need to be able to differentiate between when the model is posted with foo as unchecked and when foo isn't shown. – DMulligan J...
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How to compare objects by multiple fields

... I Actually prefer the idea of using a single Comparator. I don't think this answer is wrong, but anyone reading it should definitely check Steve Kuo answer below. – Felipe Leão Nov 13 '14 at ...
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SELECT DISTINCT on one column

... this is really useful case in any various duplication thank you – ASLIM Jan 13 at 8:08 add a comment ...
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Stateless and Stateful Enterprise Java Beans

...s. If stateless session beans do not retain their state in between method calls, why is my program acting the way it is? 7 ...
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RSpec: What is the difference between a feature and a request spec?

... The conceptual difference is that you're usually testing a user story, and all interaction should be driven via the user interface. That's where Capybara comes in. A request spec is still testing the behavior of your application and doesn't have the expectation of re...
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Calling startActivity() from outside of an Activity?

...Please understand the difference between setFlags() and addFlag() methods. All you are doing now is launching an activity with FLAG_ACTIVITY_NEW_TASK. As in the code posted by Cristian below. – JehandadK Mar 21 '12 at 5:18 ...
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NodeJS require a global module/package

I'm trying to install globally and then use forever and forever-monitor like this: 8 Answers ...
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Error handling with node.js streams

...ansform Transform streams are both readable and writeable, and thus are really good 'middle' streams. For this reason, they are sometimes referred to as through streams. They are similar to a duplex stream in this way, except they provide a nice interface to manipulate the data rather than just sen...
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Boolean Field in Oracle

...anted to add a boolean field to an Oracle table. However, there isn't actually a boolean data type in Oracle. Does anyone here know the best way to simulate a boolean? Googling the subject discovered several approaches ...