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keyconditions.go
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keyconditions.go
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package ddb
import "github.com/aws/aws-sdk-go-v2/feature/dynamodb/expression"
type KeyCondition func(pkColName, skColName string) expression.KeyConditionBuilder
func KeyPkOnly(pk string) KeyCondition {
return func(pkColName, skColName string) expression.KeyConditionBuilder {
return expression.Key(pkColName).Equal(expression.Value(pk))
}
}
func KeySkBeginsWith(pk, skPrefix string) KeyCondition {
return func(pkColName, skColName string) expression.KeyConditionBuilder {
return expression.Key(pkColName).Equal(expression.Value(pk)).
And(expression.Key(skColName).BeginsWith(skPrefix))
}
}
func KeySkBetween(pk, skStart, skEnd string) KeyCondition {
return func(pkColName, skColName string) expression.KeyConditionBuilder {
return expression.Key(pkColName).Equal(expression.Value(pk)).
And(expression.Key(skColName).Between(expression.Value(skStart), expression.Value(skEnd)))
}
}
func KeySkGreaterThan(pk, skStart string) KeyCondition {
return func(pkColumnName, skColumnName string) expression.KeyConditionBuilder {
return expression.Key(pkColumnName).Equal(expression.Value(pk)).
And(expression.Key(skColumnName).GreaterThan(expression.Value(skStart)))
}
}
func KeySkGreaterThanEqual(pk, skStart string) KeyCondition {
return func(pkColumnName, skColumnName string) expression.KeyConditionBuilder {
return expression.Key(pkColumnName).Equal(expression.Value(pk)).
And(expression.Key(skColumnName).GreaterThanEqual(expression.Value(skStart)))
}
}
func KeySkLessThan(pk, skEnd string) KeyCondition {
return func(pkColumnName, skColumnName string) expression.KeyConditionBuilder {
return expression.Key(pkColumnName).Equal(expression.Value(pk)).
And(expression.Key(skColumnName).LessThan(expression.Value(skEnd)))
}
}
func KeySkLessThanEqual(pk, skEnd string) KeyCondition {
return func(pkColumnName, skColumnName string) expression.KeyConditionBuilder {
return expression.Key(pkColumnName).Equal(expression.Value(pk)).
And(expression.Key(skColumnName).LessThanEqual(expression.Value(skEnd)))
}
}