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GORM - Grails Data Access Framework

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package grails.gorm.tests

import grails.gorm.annotation.Entity
import groovy.transform.CompileStatic

class WhereLazySpec extends GormDatastoreSpec {

    @Override
    List getDomainClasses() {
        [Product]
    }

    void createProducts() {
        new Product(name: 'tshirt', color: 'red').save(flush: true)
        new Product(name: 'tshirt', color: 'orange').save(flush: true)
        new Product(name: 'tshirt', color: 'yellow').save(flush: true)
        new Product(name: 'tshirt', color: 'orange').save(flush: true)
        new Product(name: 'tshirt', color: 'blue').save(flush: true)
    }

    void "test deleteAll with whereLazy"() {
        setup:
        createProducts()

        when:
        Product.removeAllByColor("orange")

        then:
        Product.count() == 3

        cleanup:
        Product.deleteAll()

    }

    void "test updateAll with whereLazy"() {
        setup:
        createProducts()

        when:
        Product.updateAll("orange")

        then:
        Product.countByName('tshirt') == 3
        Product.countByName('t-shirt orange') == 2

        cleanup:
        Product.deleteAll()
    }

}

@CompileStatic
@Entity
class Product {

    String name
    String color

    static Number removeAllByColor(String givenColor) {
        whereLazy { color == givenColor }.deleteAll()
    }

    static Number updateAll(String givenColor) {
        whereLazy {color == givenColor}.updateAll([name: 't-shirt ' + givenColor])
    }
}