From f885e6c80b1ab25d20d3e472ed9230e9d86e5cbe Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Thu, 17 Mar 2016 13:39:32 +0100
Subject: [PATCH] Implement move_by_id()

---
 libimagstore/src/error.rs |  2 +-
 libimagstore/src/store.rs | 22 +++++++++++++++++++++-
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/libimagstore/src/error.rs b/libimagstore/src/error.rs
index 6432e0f3..3b3fa39b 100644
--- a/libimagstore/src/error.rs
+++ b/libimagstore/src/error.rs
@@ -33,6 +33,7 @@ generate_custom_error_types!(StoreError, StoreErrorKind, CustomErrorData,
     GlobError               => "glob() error",
     EncodingError           => "Encoding error",
     StorePathError          => "Store Path error",
+    EntryRenameError        => "Entry rename error",
 
     CreateCallError            => "Error when calling create()",
     RetrieveCallError          => "Error when calling retrieve()",
@@ -42,7 +43,6 @@ generate_custom_error_types!(StoreError, StoreErrorKind, CustomErrorData,
     UpdateCallError            => "Error when calling update()",
     RetrieveCopyCallError      => "Error when calling retrieve_copy()",
     DeleteCallError            => "Error when calling delete()"
-
 );
 
 generate_custom_error_types!(ParserError, ParserErrorKind, CustomErrorData,
diff --git a/libimagstore/src/store.rs b/libimagstore/src/store.rs
index ba254ac7..1c4b9aa7 100644
--- a/libimagstore/src/store.rs
+++ b/libimagstore/src/store.rs
@@ -598,7 +598,27 @@ impl Store {
 
     /// Move an entry without loading
     pub fn move_by_id(&self, old_id: StoreId, new_id: StoreId) -> Result<()> {
-        unimplemented!()
+        use std::fs::rename;
+
+        let new_id = self.storify_id(new_id);
+        let old_id = self.storify_id(old_id);
+        let hsmap = self.entries.write();
+        if hsmap.is_err() {
+            return Err(SE::new(SEK::LockPoisoned, None))
+        }
+        if hsmap.unwrap().contains_key(&old_id) {
+            return Err(SE::new(SEK::EntryAlreadyBorrowed, None));
+        } else {
+            match rename(old_id, new_id.clone()) {
+                Err(e) => {
+                    let kind = SEK::EntryRenameError;
+                    return Err(SE::new(kind, Some(Box::new(e))));
+                },
+                _ => {
+                    debug!("Rename worked");
+                },
+            }
+        }
     }
 
     /// Gets the path where this store is on the disk