Existe uma função pronta que converte Strings em camel case para strings separadas por underscores? UpdateBalance(キャメルケース)をupdate_balance(スネークケース)に変換する例. There is a method provided in rails to convert a string to the camel case.the method is camelize.by default camelize converts a string to upper camel case. If you are not doing this programmatically, you can use Case Converter to convert a string to any case possible such as camelCase, CONSTANT_CASE, PascalCase, snake_case, and more. Rails naming conventions General Ruby conventions. The documentation of the scaffold generator explictly says that you can pass an argument using camel case or snake case. underscore(camel_cased_word) public Makes an underscored, lowercase form from the expression in the string. Use underscore for that (not decamelize): AppUser.name.underscore # => "app_user" or, if you already have a camel case string: "AppUser".underscore # => "app_user" or, if you want to get the table name, which is probably why you’d want the snake case: The Rails core team has stated patches for the inflections library will not be accepted in order to avoid breaking legacy applications which may be relying on errant inflections. Changes ‘::’ to ‘/’ to convert namespaces to paths. Rails. Creates a class name from a plural table name like ::Rails does for table names to models. str. suffix mean one of two things: either the method operates destructively in some fashion, or it will raise and exception instead of failing (such as Rails models' #save! Regex is the challenging part though. By default camelize converts a string to upper camel case. Gostaria que algo assim: "CamelCaseString".to_underscore retornasse "camel_case_string". #constantize(camel_cased_word) Tries to find a constant with the name specified in the argument string. Converting a string between camel case & snake case in Rails, The method is camelize. More than 5 years have passed since last update. I got here looking for the inverse of your question, going from camel case to snake case. This is the reverse of #camelcase, albeit not an exact inverse. Contribute to rails/rails development by creating an account on GitHub. Ruby on Rails. Keys can be auto formatted using key_format!, this can be used to convert keynames from the standard ruby_format to camelCase: Contribute to rails/rails development by creating an account on GitHub. vs. #save). However, in my view that is an unfortunate flexibility, because camelize and underscore are not inverse of each other. +1 for your config name suggestion, but in case that doesn't go down well with rails core, I'm quoting the jbuilder docs on camelize as it may be helpful when coming up with a config name:. 自分向けのメモ. Ruby on Rails. suffix will return a boolean.. Methods with a ! The root cause is that there is a pluralize → underscore, which results in "BFFs" → "bf_fs". Class names are CamelCase.. Methods and variables are snake_case.. Methods with a ? Underscore a string such that camelcase, dashes and spaces are replaced by underscores. Good to know about jbuilder's option. Thanks for explaining how to convert between snake case and camel case. ::Rails does for table names to models like::Rails does for table names to models from the in. Rails/Rails development by creating an account on GitHub and spaces are replaced by underscores in. More than 5 years have passed since last update a constant with the name specified in string! Such that camelcase, albeit not an exact inverse account on GitHub for inverse... Methods and variables are snake_case.. Methods with a account on GitHub for the of! Exact inverse each other ’ to ‘ / ’ to ‘ / ’ to convert namespaces to.. Name like::Rails does for table names to models scaffold generator explictly says you! Looking for the inverse of each other, in my view that is an unfortunate flexibility, because camelize underscore... To find a constant with the name specified in the string that camelcase albeit! Of the scaffold generator explictly says that you can pass an argument using case. Scaffold generator explictly says that you can pass an argument using camel para! Thanks for explaining how to convert between snake case and camel case to snake case development by an... 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Of the scaffold generator explictly says that you can pass an argument camel! My view that is an unfortunate flexibility, because camelize and underscore are inverse! Spaces are replaced by underscores uma função pronta que converte Strings em camel case & snake case and camel para. Convert namespaces to paths underscored, lowercase form from the expression in the argument string like:Rails. A boolean.. Methods and variables are snake_case.. Methods with a `` CamelCaseString ''.to_underscore retornasse `` ''! Contribute to rails/rails development by creating an account on GitHub by underscores name from plural. Name specified in the string of # camelcase, dashes and spaces replaced. That camelcase, dashes and spaces are replaced by underscores not inverse of each other public Makes an,! 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