Zack Xu

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Zack Xu has asked 38 questions and find answers to 28 problems.

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Zack Xu questions

Is it possible to change active record associations in memory without saving them to the database?
I18n translation in Rails console doesn't show proper Chinese (or any other language)
How do I add or modify the Content-Disposition of an existing object in Amazon S3?
Use parentheses to enclose a block in Ruby?
Is it possible to find a document in mongodb using object id alone (without knowing which collection)?
What's the Rails.root equivalent in a Rack application?
how to add annotation text to a Highcharts chart?
Can you define instance variables during Cucumber's Given, When, and Then step definitions
In Sublime, typing <tab> after colon causes 'key => "value"' to appear, why?
Gmail thinks our email is NOT from the FROM domain and puts it in Spam Folder, how to solve this?

Zack Xu answers

How do I add or modify the Content-Disposition of an existing object in Amazon S3?
In CKEditor, how to set link open in a new window as default while removing the target tab?
Check if file is a valid image
How to add active record validation errors inside custom setter?
Proper way to prevent ActiveRecord::ReadOnlyRecord?
What's the Rails.root equivalent in a Rack application?
Subtracting one Array from another in Ruby
Error while installing rails
cap deploy:setup creates the release folder with root as owner
Rails / Papertrail: Changeset with association changes