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Object#nonblank? (analogous to Ruby's Numeric#nonzero?)
About a year ago we built on Rails' blank? method with a nonblank? method that is analogous to Ruby's Numeric#nonzero? method: it either returns the object itself (if not blank) or nil (if blank). This makes it easy to treat blank parameters the same as missing ones, and allows chaining.
For example, this:
state = params[:state] unless params[:state].blank? country = params[:country] unless params[:country].blank? region = state || country || 'US'
becomes:
region = params[:state].nonblank? || params[:country].nonblank? || 'US'
This has been working well for us and hopefully others will find it useful to too.
The attached patch has full documentation and tests.
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nonblank_patch.diff
2.48 KB
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Colin Kelley[oops, reformatting]
For example, this:
state = params[:state] unless params[:state].blank? country = params[:country] unless params[:country].blank? region = state || country || 'US'becomes:
region = params[:state].nonblank? || params[:country].nonblank? || 'US' -
Prem Sichanugrist (sikachu)I have some suggestion. Since we already have
present?method which would do almost the same thing. Should we modifypresent?method return object itself if it's notblank?instead?region = params[:state].present? || params[:country].present? || 'US' -
