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All the commands and seed data for my mongoid talk at RORO
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| # Indexes | |
| Bike.where(style: 'FIXIE').explain['indexBounds'] | |
| Bike.where(brand_name: 'Genesis').explain['indexBounds'] | |
| Bike.where(style: 'FIXIE', brand_name: 'Genesis').explain['indexBounds'] | |
| # Nil and unset | |
| chinarello = Bike.first | |
| chinarello.colour = nil | |
| chinarello.save | |
| chinarello.reload | |
| chinarello.as_document.keys | |
| chinarello.unset :colour | |
| chinarello.as_document.keys | |
| # Nil and Exists | |
| chinarello = Bike.first | |
| chinarello.colour = nil | |
| chinarello.save | |
| Bike.exists(colour: false).count | |
| Bike.first.unset :colour | |
| Bike.exists(colour: false).count | |
| # BigDecimal ordering | |
| Bike.all.order_by(price: :asc).each{|b| puts b.price};nil | |
| # Updating embedded objects without embedded_in decleration | |
| chinarello = Bike.first | |
| chinarello.parts.first.colour = 'HOT PINK' | |
| chinarello.save | |
| chinarello.reload | |
| chinarello.parts.first.colour | |
| # Indexes on embedded objects | |
| Bike.where('parts.brand_name' => 'SRAM').explain['indexBounds'] | |
| # Embedded object callbacks | |
| chinarello = Bike.first | |
| chinarello.parts.first.colour = 'red' | |
| chinarello.save | |
| chinarello.reload | |
| chinarello.parts.first.colour | |
| # Two atomic operations | |
| Bike.collection.find(brand_name: 'Chinarello').update({'$unset' => {'parts.0.brand_name' => 1}}, {'$set' => {'parts.1.colour' => 'HOT PINK'}}) | |
| Bike.where(brand_name: 'Chinarello').first.parts[1].colour |
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| b1 = Bike.create!(style: 'CARBON_MONSTROSITY', colour: 'RED', brand_name: 'Chinarello', price: 10999.99) | |
| b1.parts << Part.new(name: 'CRANK', colour: 'RED', brand_name: 'SRAM') | |
| b1.parts << Part.new(name: 'HUB', colour: 'RED', brand_name: 'Chris King') | |
| b1.parts << Part.new(name: 'PEDALS', colour: 'BLACK', brand_name: 'LOOK') | |
| b2 = Bike.create!(style: 'DUALIE', colour: 'GREEN', brand_name: 'BMC', price: 7300) | |
| b2.parts << Part.new(name: 'CRANK', colour: 'GOLD', brand_name: 'SRAM') | |
| b2.parts << Part.new(name: 'HUB', colour: 'SILVER', brand_name: 'Easton') | |
| b2.parts << Part.new(name: 'PEDALS', colour: 'BLACK', brand_name: 'Shimano') | |
| b3 = Bike.create!(style: 'TOURER', colour: 'BROWN', brand_name: 'Salsa', price: 2300) | |
| b3.parts << Part.new(name: 'CRANK', colour: 'SILVER', brand_name: 'Shimano') | |
| b3.parts << Part.new(name: 'HUB', colour: 'BLACK', brand_name: 'Dt-Swiss') | |
| b3.parts << Part.new(name: 'PEDALS', colour: 'SILVER', brand_name: 'Shimano') | |
| b4 = Bike.create!(style: 'FIXIE', colour: 'BLUE', brand_name: 'Genesis', price: 1150) | |
| b4.parts << Part.new(name: 'CRANK', colour: 'BLACK', brand_name: 'SRAM') | |
| b4.parts << Part.new(name: 'HUB', colour: 'WHITE', brand_name: 'Velocity') | |
| b4.parts << Part.new(name: 'PEDALS', colour: 'BLACK', brand_name: 'Shimano') | |
| b5 = Bike.create!(style: 'FIXIE', colour: 'CREAM', brand_name: 'Surly', price: 1300) | |
| b5.parts << Part.new(name: 'CRANK', colour: 'BLACK', brand_name: 'Surly') | |
| b5.parts << Part.new(name: 'HUB', colour: 'BLACK', brand_name: 'Velocity') | |
| b5.parts << Part.new(name: 'PEDALS', colour: 'SILVER', brand_name: 'Shimano') |
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