Add helper method to check if list is read only

app/src/main/java/org/tasks/caldav/iCalendar.kt

@@ -41,7 +41,6 @@ import org.tasks.data.entity.Alarm.Companion.TYPE_RANDOM
 import org.tasks.data.entity.Alarm.Companion.TYPE_SNOOZE
 import org.tasks.data.entity.CaldavAccount
 import org.tasks.data.entity.CaldavCalendar
-import org.tasks.data.entity.CaldavCalendar.Companion.ACCESS_READ_ONLY
 import org.tasks.data.entity.CaldavTask
 import org.tasks.data.entity.Place
 import org.tasks.data.entity.TagData
@@ -208,7 +207,7 @@ class iCalendar @Inject constructor(
         val task = existing?.task
             ?.let { taskDao.fetch(it) }
             ?: taskCreator.createWithValues("").apply {
-                readOnly = calendar.access == ACCESS_READ_ONLY
+                readOnly = calendar.readOnly()
                 taskDao.createNew(this)
             }
         val caldavTask =

app/src/main/java/org/tasks/preferences/DefaultFilterProvider.kt

@@ -84,7 +84,7 @@ class DefaultFilterProvider @Inject constructor(
     private suspend fun getAnyList(): CaldavFilter {
         val filter = caldavDao
             .getCalendars()
-            .filterNot { it.access == ACCESS_READ_ONLY }
+            .filterNot { it.readOnly() }
             .getOrNull(0)
             ?.let { list ->
                 list.account

data/src/commonMain/kotlin/org/tasks/data/entity/CaldavCalendar.kt

@@ -49,4 +49,6 @@ data class CaldavCalendar(
         @JvmField val NAME = TABLE.column("cdl_name")
         @JvmField val ORDER = TABLE.column("cdl_order")
     }
+
+    fun readOnly(): Boolean = access == ACCESS_READ_ONLY
 }