How to make an editable data grid using ExtJS

I’m not going to go into a great amount of detail here, but I will post the three files required for the process. If you know PHP (this uses the CodeIgniter framework) and JS (this uses the ExtJS framework) then it will make sense. Hopefully this saves people some time and will serve as a basis for a good project.

Model: http://themattreid.pastebin.com/fd163b0
View: http://themattreid.pastebin.com/f2a14ba54
Controller: http://themattreid.pastebin.com/f40599353

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