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Topics

  • Arrays
  • Routing
  • Control Flow
  • ActiveRecord
  • ActiveRecord Migrations
  • ActiveRecord Query Interface
  • I18n - Internationalization
  • ActionController

Examples

  • Resource Routing (Basic)
  • if, elsif, else and end
  • Creating A Migration
  • Add a new column to a table
  • Adding multiple columns to a table
  • Running migrations
  • Rollback migrations
  • .where
  • .where with an array
  • Output JSON instead of HTML
  • Controllers (Basic)
  • Parameters
  • Filtering parameters (Basic)
  • Redirecting
  • Using Views
  • 404 when record not found
  • Basic REST Controller
  • Display error pages for exceptions
  • Redo migrations
  • Ordering
  • ActiveRecord Bang (!) methods
  • .find_by
  • .delete_all
  • Use I18n in views
  • I18n with arguments
  • Pluralization
  • Set locale through requests
  • Turn multi-dimensional array into a one-dimensional (flattened) array
  • Get unique array elements
  • Forbid null values
  • Get locale from HTTP request
  • Filters
  • Generating a controller
  • Rescuing ActiveRecord::RecordNotFound with redirect_to
  • Translating ActiveRecord model attributes
  • Ternary operator

Francesco Lupo Renzi

StackOverflow Profile

profile for Francesco Lupo Renzi at Stack Overflow, Q&A for professional and enthusiast programmers



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