select.Having.scala Maven / Gradle / Ivy
/*
* Copyright 2021 Kári Magnússon
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package kuzminki.select
import kuzminki.filter.Filter
import kuzminki.section.{Section, HavingSec, HavingBlankSec}
class Having[M, R](
model: M,
coll: SelectCollector[R]
) {
private def toOrderBy(section: Section) = {
new OrderBy(
model,
coll.add(section)
)
}
def all = {
toOrderBy(HavingBlankSec)
}
def having(pick: M => Seq[Filter]) = {
toOrderBy(
HavingSec(pick(model).toVector)
)
}
def havingOpt(pick: M => Seq[Option[Filter]]) = {
toOrderBy(
pick(model).flatten match {
case Nil =>
HavingBlankSec
case filters =>
HavingSec(filters.toVector)
}
)
}
}