Top Questions

1. In Rails 5, how to drop the default value of primary key i.e. 'id' column and make it auto_increment again?
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2. how to deploy to heroku from a custom branch?
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3. Ruby - What is difference between defining constant using 'const_set' and simple capitalize constant name in the class?
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4. Rails, in a route like /books/:slug, :to => 'books#show', slug: /.*?/ what is slug: /.*?/ doing?
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5. How to play a google audio ad?
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