server: Add BalanceOrderingParser

server/app/com/xsn/explorer/models/fields/BalanceField.scala

@@ -0,0 +1,23 @@
+package com.xsn.explorer.models.fields
+
+import com.xsn.explorer.data.anorm.interpreters.ColumnNameResolver
+
+sealed abstract class BalanceField(val string: String)
+
+object BalanceField {
+
+  case object Available extends BalanceField("available")
+  case object Received extends BalanceField("received")
+  case object Spent extends BalanceField("spent")
+  case object Address extends BalanceField("address")
+
+  def from(string: String): Option[BalanceField] = string match {
+    case Available.string => Some(Available)
+    case Received.string => Some(Received)
+    case Spent.string => Some(Spent)
+    case Address.string => Some(Address)
+    case _ => None
+  }
+
+  implicit val columnNameResolver: ColumnNameResolver[BalanceField] = (field) => field.string
+}

server/app/com/xsn/explorer/parsers/BalanceOrderingParser.scala

@@ -0,0 +1,15 @@
+package com.xsn.explorer.parsers
+
+import com.xsn.explorer.models.base.OrderingCondition
+import com.xsn.explorer.models.fields.BalanceField
+
+class BalanceOrderingParser extends FieldOrderingParser[BalanceField] {
+
+  override protected val defaultField = BalanceField.Available
+
+  override protected val defaultOrderingCondition: OrderingCondition = OrderingCondition.DescendingOrder
+
+  override protected def parseField(unsafeField: String): Option[BalanceField] = {
+    BalanceField.from(unsafeField)
+  }
+}