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allow pg upsert specify conflict target column #181

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Merged
merged 1 commit into from
Jul 31, 2020
Merged

allow pg upsert specify conflict target column #181

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8 changes: 6 additions & 2 deletions ktorm-support-postgresql/src/main/kotlin/me/liuwj/ktorm/support/postgresql/InsertOrUpdate.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@ import me.liuwj.ktorm.expression.ColumnExpression
import me.liuwj.ktorm.expression.SqlExpression
import me.liuwj.ktorm.expression.TableExpression
import me.liuwj.ktorm.schema.BaseTable
import me.liuwj.ktorm.schema.Column

/**
* Insert or update expression, represents an insert statement with an
Expand Down Expand Up @@ -87,7 +88,8 @@ fun <T : BaseTable<*>> Database.insertOrUpdate(table: T, block: InsertOrUpdateSt
val expression = InsertOrUpdateExpression(
table = table.asExpression(),
assignments = assignments,
conflictTarget = primaryKeys.map { it.asExpression() },
conflictTarget = builder.conflictColumns.map { it.asExpression() }.takeIf { it.isNotEmpty() }
?: primaryKeys.map { it.asExpression() },
updateAssignments = builder.updateAssignments
)

Expand All @@ -103,11 +105,13 @@ class InsertOrUpdateStatementBuilder(
) : AssignmentsBuilder(assignments) {

internal val updateAssignments = ArrayList<ColumnAssignmentExpression<*>>()
internal val conflictColumns = ArrayList<Column<*>>()

/**
* Specify the update assignments while any key conflict exists.
*/
fun onDuplicateKey(block: AssignmentsBuilder.() -> Unit) {
fun onDuplicateKey(vararg columns: Column<*>, block: AssignmentsBuilder.() -> Unit) {
conflictColumns += columns
val assignments = ArrayList<ColumnAssignmentExpression<*>>()
AssignmentsBuilder(assignments).apply(block)
updateAssignments += assignments
Expand Down