Implemented sort order

Signed-off-by: Arnau Mora <arnyminerz@proton.me>

Author: ArnyminerZ

app/src/main/kotlin/at/bitfire/davdroid/db/WebDavDocumentDao.kt

@@ -24,6 +24,9 @@ interface WebDavDocumentDao {
     @Query("SELECT * FROM webdav_document WHERE parentId=:parentId")
     fun getChildren(parentId: Long): List<WebDavDocument>
 
+    @Query("SELECT * FROM webdav_document WHERE parentId=:parentId ORDER BY :orderBy")
+    fun getChildrenOrdered(parentId: Long, orderBy: String): List<WebDavDocument>
+
     @Insert(onConflict = OnConflictStrategy.REPLACE)
     fun insertOrReplace(document: WebDavDocument): Long
 

app/src/main/kotlin/at/bitfire/davdroid/webdav/DavDocumentsProvider.kt

@@ -287,7 +287,8 @@ class DavDocumentsProvider(
             runningQueryChildren.remove(parentId)
 
         // Regardless of whether the worker is done, return the children we already have
-        for (child in documentDao.getChildren(parentId)) {
+        val children = if (sortOrder == null) documentDao.getChildren(parentId) else documentDao.getChildrenOrdered(parentId, sortOrder)
+        for (child in children) {
             val bundle = child.toBundle(parent)
             result.addRow(bundle)
         }