[Checkins] SVN: Sandbox/luciano/kirbi/src/kirbi/interfaces.py moved IBook to interfaces.py

[Luciano Ramalho]

Log message for revision 78829:
  moved IBook to interfaces.py
  

Changed:
  A   Sandbox/luciano/kirbi/src/kirbi/interfaces.py

-=-
Added: Sandbox/luciano/kirbi/src/kirbi/interfaces.py
===================================================================
--- Sandbox/luciano/kirbi/src/kirbi/interfaces.py	                        (rev 0)
+++ Sandbox/luciano/kirbi/src/kirbi/interfaces.py	2007-08-15 01:37:59 UTC (rev 78829)
@@ -0,0 +1,57 @@
+from zope.interface import Interface, invariant, Invalid
+from zope import schema
+from isbn import isValidISBN
+
+class InvalidISBN(schema.ValidationError):
+    """This is not a valid ISBN-10 or ISBN-13"""
+
+def validateISBN(isbn):
+    if not isValidISBN(isbn):
+        raise InvalidISBN
+    else:
+        return True
+
+class IBook(Interface):
+    """A book record"""
+    title = schema.TextLine(title=u"Title",
+                            required=False,
+                            default=u'',
+                            missing_value=u'')
+    isbn = schema.TextLine(title=u"ISBN",
+                           required=False,
+                           constraint=validateISBN,
+                           description=u"ISBN in 10 or 13 digit format",
+                           min_length=10,
+                           max_length=17 #978-3-540-33807-9
+                           )
+
+    creators = schema.Tuple(title=u"Authors",
+                            value_type=schema.TextLine(),
+                            default=())
+    edition = schema.TextLine(title=u"Edition", required=False)
+    publisher = schema.TextLine(title=u"Publisher", required=False)
+    issued = schema.TextLine(title=u"Issued", required=False)
+    # TODO: set a vocabulary for language
+    language = schema.TextLine(title=u"Language", required=False)
+    
+    subjects = schema.Tuple(title=u"Subjects",
+                            value_type=schema.TextLine(),
+                            default=())
+            
+    source = schema.TextLine(title=u"Record source",
+                             required=False,
+                             description=u"Name of the source of this record.")
+    source_url = schema.URI(title=u"Source URL",
+                            required=False,
+                            description=u"URL of the source of this record.")
+    source_item_id = schema.TextLine(title=u"Item ID at Source",
+                            required=False,
+                            description= (u"Product number or other identifier"
+                                          u" for this item at source.")
+    )
+
+    @invariant
+    def titleOrIsbnGiven(book):
+        if (not book.title or not book.title.strip()) and (not book.isbn):
+            raise Invalid('Either the title or the ISBN must be given.')
+