Добавлена процедура поиска и удаления дубликатов.

[openlib.git] / db.py

diff --git a/db.py b/db.py
index 84a999dca328d142b1703b5f0fb507a9e8877ae1..a39c1603913a4b5a03ecd47045a659c01a723927 100644 (file)
--- a/db.py
+++ b/db.py
@@ -197,6 +197,25 @@ def ListByFormat(format,limit=100):
     print "No connection to DB"
     exit()
 
+def ListDups(limit=100):
+  if database:
+    c = database.cursor()
+    c.execute('SELECT b.title,l.author,max(b.id) id FROM metadata.books b,metadata.books_authors_link l where b.id=l.book group by b.title,l.author having count(*)>%s',(limit))
+    return c.fetchall()
+  else:
+    print "No connection to DB"
+    exit()
+
+def ListByTitleAndAuthor(title,author,id=0):
+  if database:
+    c = database.cursor()
+    c.execute('SELECT b.id FROM metadata.books b,metadata.books_authors_link l where b.id=l.book and b.title=%s and l.author=%s and b.id<>%s',(title,author,id))
+    return c.fetchall()
+  else:
+    print "No connection to DB"
+    exit()
+ 
+
 def Commit():
   if database:
     database.commit()