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POArchitecture for image tagging
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copied!<p>I am not getting further since days with the best structure to choose for my purpose. I have:</p> <pre><code>class Image < ActiveRecord::Base attr_accessible :date, :description, :name, :image, :tag_ids has_many :taggings, :dependent => :destroy has_many :tags, :through => :taggings mount_uploader :image, ImageUploader end </code></pre> <p>Then:</p> <pre><code>class Tag < ActiveRecord::Base attr_accessible :name has_many :taggings, :dependent => :destroy has_many :images, :through => :taggings end </code></pre> <p>And:</p> <pre><code>class Tagging < ActiveRecord::Base belongs_to :image belongs_to :tag attr_accessible :image_id, :tag_id end </code></pre> <p>I have three main categories for now, all images belong into 'Solar System', 'Milky Way' or 'Universe'. Let's say I have an image of Saturn, so I tag it 'Saturn' and 'Solar System'. An image of a moon of saturn will further be tagged with 'Moon'. An image of Andromeda Galaxy will be tagged 'Universe' and 'Galaxy'.</p> <p>If I want to display all images e.g. of the Solar System with the url: www.website.com/solarsystem</p> <p>There shall be links to e.g. Jupiter or Saturn. If I click Saturn the url shall be: www.website.com/solarsystem/saturn ...and it shall display all images tagged with 'Saturn'.</p> <p>The category structure (which will also be displayed) as a link shall in this case be:</p> <p>Home > Solar System > Saturn</p> <p>All categories are clickable and lead you to the images of the category. With the Image, Tag and Tagging model I find it very difficult to achieve all this. E.g. in /image/show.html I have problems to display the correct links of the category structure since they depend on the tag of the image. E.g. I need to say if tag.name = 'Saturn' then the 1st link shall be "Solar System". If tag.name = 'Galaxy', then the 1st link shall be "Universe". But with many tags and combinations it gets quite confusiong. Also the correct url (www.website.com/solarsystem/saturn) is not easy for me to achieve.</p> <p>Is there a good solution, maybe with another model structure, maybe having an own model for all tags like 'Saturn' or 'Jupiter'?</p>

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