Disabled transaction type delete if used

app/src/main/java/net/pokeranalytics/android/model/realm/TransactionType.kt

@@ -96,11 +96,12 @@ open class TransactionType : RealmObject(), NameManageable, StaticRowRepresentab
 	}
 
 	override fun isValidForDelete(realm: Realm): Boolean {
-		return true
+		return realm.where(Transaction::class.java)
+			.equalTo("type.id", this.id).findAll().isEmpty()
 	}
 
 	override fun getFailedDeleteMessage(status: DeleteValidityStatus): Int {
-		return R.string.relationship_error
+		return R.string.transaction_relationship_error
 	}
 
 }

app/src/main/java/net/pokeranalytics/android/ui/activity/SessionActivity.kt

@@ -1,8 +1,10 @@
 package net.pokeranalytics.android.ui.activity
 
+import android.app.Activity
 import android.content.Context
 import android.content.Intent
 import android.os.Bundle
+import androidx.fragment.app.Fragment
 import kotlinx.android.synthetic.main.activity_session.*
 import net.pokeranalytics.android.R
 import net.pokeranalytics.android.ui.activity.components.PokerAnalyticsActivity
@@ -16,6 +18,7 @@ class SessionActivity: PokerAnalyticsActivity() {
 	}
 
 	companion object {
+
 		fun newInstance(context: Context, isTournament: Boolean? = false, sessionId: String? = "") {
 			val intent = Intent(context, SessionActivity::class.java)
 			isTournament?.let {
@@ -27,6 +30,17 @@ class SessionActivity: PokerAnalyticsActivity() {
 			context.startActivity(intent)
 		}
 
+		fun newInstanceforResult(fragment: Fragment, isTournament: Boolean? = false, sessionId: String? = "", requestCode: Int) {
+			val intent = Intent(fragment.requireContext(), SessionActivity::class.java)
+			isTournament?.let {
+				intent.putExtra(IntentKey.IS_TOURNAMENT.keyName, isTournament)
+			}
+			sessionId?.let {
+				intent.putExtra(IntentKey.SESSION_ID.keyName, sessionId)
+			}
+
+			fragment.startActivityForResult(intent, requestCode)
+		}
 	}
 
 	override fun onCreate(savedInstanceState: Bundle?) {
@@ -37,6 +51,7 @@ class SessionActivity: PokerAnalyticsActivity() {
 	}
 
 	override fun onBackPressed() {
+		setResult(Activity.RESULT_OK)
 		super.onBackPressed()
 		(sessionFragment as SessionFragment).onBackPressed()
 	}

app/src/main/java/net/pokeranalytics/android/ui/activity/components/Codes.kt

@@ -2,7 +2,9 @@ package net.pokeranalytics.android.ui.activity.components
 
 enum class RequestCode(var value: Int) {
 	DEFAULT(1),
-	NEW_REPORT(800),
+	NEW_SESSION(800),
+	NEW_TRANSACTION(801),
+	NEW_REPORT(802),
 	IMPORT(900)
 }
 

app/src/main/java/net/pokeranalytics/android/ui/fragment/FeedFragment.kt

@@ -23,6 +23,7 @@ import net.pokeranalytics.android.model.realm.Filter
 import net.pokeranalytics.android.model.realm.Session
 import net.pokeranalytics.android.model.realm.Transaction
 import net.pokeranalytics.android.ui.activity.*
+import net.pokeranalytics.android.ui.activity.components.RequestCode
 import net.pokeranalytics.android.ui.adapter.FeedSessionRowRepresentableAdapter
 import net.pokeranalytics.android.ui.adapter.FeedTransactionRowRepresentableAdapter
 import net.pokeranalytics.android.ui.adapter.RowRepresentableDelegate
@@ -38,6 +39,11 @@ import java.util.*
 
 class FeedFragment : FilterableFragment(), RowRepresentableDelegate {
 
+	private enum class Tab {
+		SESSIONS,
+		TRANSACTIONS
+	}
+
 	companion object {
 
 		const val REQUEST_CODE_MENU = 100
@@ -107,6 +113,10 @@ class FeedFragment : FilterableFragment(), RowRepresentableDelegate {
 			data?.let {
 				this.saveFilter(this.requireContext(), it.getStringExtra(FiltersActivity.IntentKey.FILTER_ID.keyName))
 			}
+		} else if (requestCode == RequestCode.NEW_TRANSACTION.value && resultCode == RESULT_OK) {
+			this.selectTab(Tab.TRANSACTIONS)
+		} else if (requestCode == RequestCode.NEW_SESSION.value && resultCode == RESULT_OK) {
+			this.selectTab(Tab.SESSIONS)
 		}
 
 	}
@@ -276,7 +286,7 @@ class FeedFragment : FilterableFragment(), RowRepresentableDelegate {
 			return
 		}
 
-		SessionActivity.newInstance(requireContext(), isTournament)
+		SessionActivity.newInstanceforResult(this, isTournament, requestCode = RequestCode.NEW_SESSION.value)
 		newSessionCreated = true
 	}
 
@@ -289,8 +299,9 @@ class FeedFragment : FilterableFragment(), RowRepresentableDelegate {
 			this.showEndOfBetaMessage()
 			return
 		}
+		EditableDataActivity.newInstanceForResult(this, LiveData.TRANSACTION, null, RequestCode.NEW_TRANSACTION.value)
 
-		EditableDataActivity.newInstance(requireContext(), LiveData.TRANSACTION.ordinal)
+//		EditableDataActivity.newInstance(requireContext(), LiveData.TRANSACTION.ordinal)
 	}
 
 	/**
@@ -329,11 +340,11 @@ class FeedFragment : FilterableFragment(), RowRepresentableDelegate {
             when (it.filterableType) {
                 FilterableType.SESSION -> {
                     recyclerView.adapter = feedSessionAdapter
-                    tabs.getTabAt(0)?.select()
+	                this.selectTab(Tab.SESSIONS)
                 }
                 FilterableType.TRANSACTION -> {
                     recyclerView.adapter = feedTransactionAdapter
-                    tabs.getTabAt(1)?.select()
+	                this.selectTab(Tab.TRANSACTIONS)
                 }
                 else -> {
                 }
@@ -359,4 +370,8 @@ class FeedFragment : FilterableFragment(), RowRepresentableDelegate {
 		}
 	}
 
+	private fun selectTab(tab: Tab) {
+		this.tabs.getTabAt(tab.ordinal)?.select()
+	}
+
 }

app/src/main/java/net/pokeranalytics/android/ui/fragment/data/TransactionTypeDataFragment.kt

@@ -54,10 +54,7 @@ class TransactionTypeDataFragment : EditableDataFragment(), RowRepresentableData
 	override fun isEnabled(row: RowRepresentable): Boolean {
 		return when (row) {
 			TransactionTypeRow.TRANSACTION_ADDITIVE -> {
-				val realm = getRealm()
+				return this.transactionType.isValidForDelete(getRealm())
-				val useCount = realm.where(Transaction::class.java)
-					.equalTo("type.id", this.transactionType.id).findAll().size
-				return useCount == 0
 			}
 			else -> super.isEnabled(row)
 		}

app/src/main/res/values/strings.xml

@@ -36,6 +36,7 @@
     <string name="comparison_chart">Comparison chart</string>
     <string name="filter_currently_selected">The filter cannot be deleted because it is currently selected.</string>
     <string name="custom_field">Custom field</string>
+    <string name="transaction_relationship_error">The item is used in one or more transactions&#8230;Please delete the linked transactions first</string>
 
     <string name="address">Address</string>
     <string name="suggestions">Naming suggestions</string>