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add methode$ "isLastPage" to pagination

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This commit is contained in:
Fabrice Lecomte
2020-02-24 20:41:29 +01:00
parent 92722b0fef
commit 3c998edb3c
1 changed files with 6 additions and 0 deletions
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6
src/main/kotlin/fr/postgresjson/connexion/Paginated.kt
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@@ -1,6 +1,7 @@
package fr.postgresjson.connexion package fr.postgresjson.connexion
import fr.postgresjson.entity.EntityI import fr.postgresjson.entity.EntityI
import kotlin.math.ceil
data class Paginated<T : EntityI>( data class Paginated<T : EntityI>(
val result: List<T>, val result: List<T>,
@@ -10,10 +11,15 @@ data class Paginated<T : EntityI>(
) { ) {
val currentPage: Int = (offset / limit) + 1 val currentPage: Int = (offset / limit) + 1
val count: Int = result.size val count: Int = result.size
val totalPages: Int = (total.toDouble() / limit.toDouble()).ceil()
init { init {
if (offset < 0) error("offset must be greather or equal than 0") if (offset < 0) error("offset must be greather or equal than 0")
if (limit < 1) error("limit must be greather or equal than 1") if (limit < 1) error("limit must be greather or equal than 1")
if (total < 0) error("total must be greather or equal than 0") if (total < 0) error("total must be greather or equal than 0")
} }
fun isLastPage(): Boolean = currentPage >= totalPages
private fun Double.ceil(): Int = ceil(this).toInt()
} }