move field conversion

[matthijs/upstream/django-ldapdb.git] / ldapdb / models / fields.py

diff --git a/ldapdb/models/fields.py b/ldapdb/models/fields.py
index 88b52522814bf259ec164a731ad3b265be686fd9..ed1d3df798fd3ee0f6b4fce4fc93aacc40c0d5c1 100644 (file)
--- a/ldapdb/models/fields.py
+++ b/ldapdb/models/fields.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # 
 # django-ldapdb
-# Copyright (C) 2009 Bolloré telecom
+# Copyright (C) 2009-2010 Bolloré telecom
 # See AUTHORS file for a full list of contributors.
 # 
 # This program is free software: you can redistribute it and/or modify
@@ -20,33 +20,109 @@
 
 from django.db.models import fields, SubfieldBase
 
+from ldapdb import escape_ldap_filter
+
 class CharField(fields.CharField):
     def __init__(self, *args, **kwargs):
         kwargs['max_length'] = 200
         super(CharField, self).__init__(*args, **kwargs)
 
-    def get_db_prep_value(self, value):
-        """Returns field's value prepared for interacting with the database
-        backend.
+    def from_ldap(self, value, connection):
+        if len(value) == 0:
+            return ''
+        else:
+            return value[0].decode(connection.charset)
+
+    def get_db_prep_lookup(self, lookup_type, value):
+        "Returns field's value prepared for database lookup."
+        if lookup_type == 'endswith':
+            return ["*%s" % escape_ldap_filter(value)]
+        elif lookup_type == 'startswith':
+            return ["%s*" % escape_ldap_filter(value)]
+        elif lookup_type in ['contains', 'icontains']:
+            return ["*%s*" % escape_ldap_filter(value)]
+        elif lookup_type == 'exact':
+            return [escape_ldap_filter(value)]
+        elif lookup_type == 'in':
+            return [escape_ldap_filter(v) for v in value]
+
+        raise TypeError("CharField has invalid lookup: %s" % lookup_type)
+
+    def get_db_prep_save(self, value, connection):
+        return [value.encode(connection.charset)]
 
-        Used by the default implementations of ``get_db_prep_save``and
-        `get_db_prep_lookup```
-        """
-        return value.replace('\\', '\\5c')
-                    .replace('*', '\\2a')
-                    .replace('(', '\\28')
-                    .replace(')', '\\29')
-                    .replace('\0', '\\00')
+    def get_prep_lookup(self, lookup_type, value):
+        "Perform preliminary non-db specific lookup checks and conversions"
+        if lookup_type == 'endswith':
+            return "*%s" % escape_ldap_filter(value)
+        elif lookup_type == 'startswith':
+            return "%s*" % escape_ldap_filter(value)
+        elif lookup_type in ['contains', 'icontains']:
+            return "*%s*" % escape_ldap_filter(value)
+        elif lookup_type == 'exact':
+            return escape_ldap_filter(value)
+        elif lookup_type == 'in':
+            return [escape_ldap_filter(v) for v in value]
+
+        raise TypeError("CharField has invalid lookup: %s" % lookup_type)
 
 class ImageField(fields.Field):
-    pass
+    def from_ldap(self, value, connection):
+        if len(value) == 0:
+            return ''
+        else:
+            return value[0]
+
+    def get_db_prep_lookup(self, lookup_type, value):
+        "Returns field's value prepared for database lookup."
+        return [self.get_prep_lookup(lookup_type, value)]
+
+    def get_db_prep_save(self, value, connection):
+        return [value]
+
+    def get_prep_lookup(self, lookup_type, value):
+        "Perform preliminary non-db specific lookup checks and conversions"
+        raise TypeError("ImageField has invalid lookup: %s" % lookup_type)
 
 class IntegerField(fields.IntegerField):
-    pass
+    def from_ldap(self, value, connection):
+        if len(value) == 0:
+            return 0
+        else:
+            return int(value[0])
+        
+    def get_db_prep_lookup(self, lookup_type, value):
+        "Returns field's value prepared for database lookup."
+        return [self.get_prep_lookup(lookup_type, value)]
+
+    def get_db_prep_save(self, value, connection):
+        return [str(value)]
+
+    def get_prep_lookup(self, lookup_type, value):
+        "Perform preliminary non-db specific lookup checks and conversions"
+        if lookup_type in ('exact', 'gte', 'lte'):
+            return value
+        raise TypeError("IntegerField has invalid lookup: %s" % lookup_type)
 
 class ListField(fields.Field):
     __metaclass__ = SubfieldBase
 
+    def from_ldap(self, value, connection):
+        return value
+
+    def get_db_prep_lookup(self, lookup_type, value):
+        "Returns field's value prepared for database lookup."
+        return [self.get_prep_lookup(lookup_type, value)]
+
+    def get_db_prep_save(self, value, connection):
+        return [x.encode(connection.charset) for x in value]
+
+    def get_prep_lookup(self, lookup_type, value):
+        "Perform preliminary non-db specific lookup checks and conversions"
+        if lookup_type == 'contains':
+            return escape_ldap_filter(value)
+        raise TypeError("ListField has invalid lookup: %s" % lookup_type)
+
     def to_python(self, value):
         if not value:
             return []