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PORuby on Rails Scoping code block to remove the need for arguments?
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  1. PORuby on Rails Scoping code block to remove the need for arguments?
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    copied!<p>I come from PHP and CakePHP background and I'm pretty new to ruby and rails.</p> <p>I've been creating a helper that could help me with creating some HTML elements that could make me easy to reuse across the web app that I am creating.</p> <p>Here's how the snippet of my helper looks like</p> <pre><code>module VehicleHelper def mileage(vehicle) render partial: "vehicles/shared/mileage", { locals: vehicle } end def manufacturer(vehicle) render partial: "vehicles/shared/manufacturer", { locals: vehicle } end #and etc... end </code></pre> <p>And I would use it this way in haml.</p> <pre><code>%h1= @vehicle.name = mileage @vehicle = manufacturer @vehicle -# and etc… </code></pre> <p>I want to be able to scope it, so that I don't need to give <code>@vehicle</code> as an argument for every function. Like</p> <pre><code>%h1= @vehicle.name - vehicle_block_for @vehicle do = mileage = manufacturer -# and etc… </code></pre> <p>How do I achieve it? Is that a right pattern that I should use?</p> <p><strong>Edit</strong> : I have thought of using partials straight in the view. However, the problem is that I not only have <code>Vehicle</code> class, I also have <code>Car</code> and <code>Bike</code> classes which are sub-classes of <code>Vehicle</code>, following the STI pattern. </p> <p>Which means I will have to pass locals all the time, in which case <code>= render partial: 'mileage', { locals: vehicle}</code> or what not becomes configuration codes. And let's say I've renamed the file or moved it somewhere, then I'd have to go and modify all these codes.</p>
 

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