Rails specifies standard conventions while creating models, controllers, migrations ( database tables ).Conventions for creating database tables1. Table name should be plural2. id field must be primary_key for table.3. foreign_key  must be like <model_name>_id i.e. post_id, site_idConventions for creating models & Controllers1. Model name must be singular and controller name should be plural.Although rails have … Continue reading How to map irregular database tables with rails models