X-Git-Url: https://git.phdru.name/?a=blobdiff_plain;f=m_librarian%2Fdb.py;h=ef0e3bd350d52b0b96b8fdae3b5f3832d72708d2;hb=76520f33bced1f7f94a2052f24a6cb748f0693cd;hp=9a5eb0af3e65dd95c5b0a2045e6b2c892ed51b2b;hpb=83f695f2450870843d3c0b764f826a66f3a1ea68;p=m_librarian.git

diff --git a/m_librarian/db.py b/m_librarian/db.py
index 9a5eb0a..ef0e3bd 100755
--- a/m_librarian/db.py
+++ b/m_librarian/db.py
@@ -1,12 +1,12 @@
 #! /usr/bin/env python
 
 __all__ = ['Author', 'Book', 'Extension', 'Genre', 'Language',
-           'init_db', 'insert_name',
+           'init_db', 'insert_name', 'update_counters',
            ]
 
 import os
 from sqlobject import SQLObject, StringCol, UnicodeCol, IntCol, BoolCol, \
-    ForeignKey, DateCol, RelatedJoin, \
+    ForeignKey, DateCol, DatabaseIndex, RelatedJoin, \
     connectionForURI, sqlhub, SQLObjectNotFound, dberrors
 from .config import ml_conf
 
@@ -54,6 +54,7 @@ if connection.dbName == 'sqlite':
 class Author(SQLObject):
     name = UnicodeCol(unique=True)
     count = IntCol()
+    count_idx = DatabaseIndex('count')
     books = RelatedJoin('Book', otherColumn='book_id')
 
 
@@ -71,23 +72,27 @@ class Book(SQLObject):
     extension = ForeignKey('Extension')
     date = DateCol()
     language = ForeignKey('Language')
+    archive_file_idx = DatabaseIndex('archive', 'file', unique=True)
 
 
 class Extension(SQLObject):
     name = StringCol(unique=True)
     count = IntCol()
+    count_idx = DatabaseIndex('count')
 
 
 class Genre(SQLObject):
     name = StringCol(unique=True)
     title = UnicodeCol()
     count = IntCol()
+    count_idx = DatabaseIndex('count')
     books = RelatedJoin('Book', otherColumn='book_id')
 
 
 class Language(SQLObject):
     name = StringCol(unique=True)
     count = IntCol()
+    count_idx = DatabaseIndex('count')
 
 
 def init_db():
@@ -102,11 +107,25 @@ def init_db():
         return
 
 
-def insert_name(table, name):
+def insert_name(table, name, **kw):
     try:
         return table.byName(name)
     except SQLObjectNotFound:
-        return table(name=name, count=0)
+        return table(name=name, count=0, **kw)
+
+
+def update_counters():
+    for author in Author.select():
+        author.count = len(author.books)
+
+    for ext in Extension.select():
+        ext.count = Book.select(Book.q.extension == ext.name).count()
+
+    for genre in Genre.select():
+        genre.count = len(genre.books)
+
+    for language in Language.select():
+        language.count = Book.select(Book.q.language == language.name).count()
 
 
 def test():