From 8ea09e65cc130750c58c81d60eef95d4eae2bd1a Mon Sep 17 00:00:00 2001
From: Charles Haley <>
Date: Wed, 8 Sep 2010 13:32:48 +0100
Subject: [PATCH] Save a copy of field_metadata into the preferences table for
 use by non-calibre applications.

---
 src/calibre/library/database2.py      | 3 +++
 src/calibre/library/field_metadata.py | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/src/calibre/library/database2.py b/src/calibre/library/database2.py
index 52b5f2d4e6..05bab95ffe 100644
--- a/src/calibre/library/database2.py
+++ b/src/calibre/library/database2.py
@@ -338,6 +338,9 @@ class LibraryDatabase2(LibraryDatabase, SchemaUpgrade, CustomColumns):
         setattr(self, 'title_sort', functools.partial(get_property,
                 loc=self.FIELD_MAP['sort']))
 
+        # Save the current field_metadata for applications like calibre2opds
+        self.prefs['field_metadata'] = self.field_metadata.all_metadata()
+
     def initialize_database(self):
         metadata_sqlite = open(P('metadata_sqlite.sql'), 'rb').read()
         self.conn.executescript(metadata_sqlite)
diff --git a/src/calibre/library/field_metadata.py b/src/calibre/library/field_metadata.py
index 09dd024b66..449cb289ce 100644
--- a/src/calibre/library/field_metadata.py
+++ b/src/calibre/library/field_metadata.py
@@ -371,6 +371,12 @@ class FieldMetadata(dict):
     def get_custom_fields(self):
         return [l for l in self._tb_cats if self._tb_cats[l]['is_custom']]
 
+    def all_metadata(self):
+        l = {}
+        for k in self._tb_cats:
+            l[k] = self._tb_cats[k]
+        return l
+
     def get_custom_field_metadata(self):
         l = {}
         for k in self._tb_cats: