Thursday, December 28, 2006

How to use Dynamic Object invocation in Rails for Models (String to Model conversion)

You have String value of the model (model name) and you want to dynamically invoke methods on this model. This comes handy when you want to parse controller/action and do some neat nifty tricks.

model_name = "invoice"

model_name_capital = model_name.capitalize # => this creates "Invoice"

@object = Object.const_get(model_name).find(:all) # => This is equivalent to Invoice.find_all

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