move compiler definition

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

diff --git a/ldapdb/models/query.py b/ldapdb/models/query.py
index 129e5056df58b23009d5eb8939728e6b849dbdc0..35df5df8329da532e84736cbf67751162acf3ae3 100644 (file)
--- a/ldapdb/models/query.py
+++ b/ldapdb/models/query.py
@@ -41,7 +41,7 @@ from django.db.models.sql import Query as BaseQuery
 from django.db.models.sql.where import WhereNode as BaseWhereNode, Constraint as BaseConstraint, AND, OR
 
 import ldapdb
-
+from ldapdb.backends.ldap import compiler
 from ldapdb.models.fields import CharField
 
 def get_lookup_operator(lookup_type):
@@ -83,80 +83,6 @@ class Constraint(BaseConstraint):
 
         return (self.alias, self.col, db_type), params
 
-class Compiler(object):
-    def __init__(self, query, connection, using):
-        self.query = query
-        self.connection = connection
-        self.using = using
-
-    def results_iter(self):
-        if self.query.select_fields:
-            fields = self.query.select_fields
-        else:
-            fields = self.query.model._meta.fields
-
-        attrlist = [ x.db_column for x in fields if x.db_column ]
-
-        try:
-            vals = self.connection.search_s(
-                self.query.model.base_dn,
-                self.query.model.search_scope,
-                filterstr=self.query._ldap_filter(),
-                attrlist=attrlist,
-            )
-        except ldap.NO_SUCH_OBJECT:
-            return
-
-        # perform sorting
-        if self.query.extra_order_by:
-            ordering = self.query.extra_order_by
-        elif not self.query.default_ordering:
-            ordering = self.query.order_by
-        else:
-            ordering = self.query.order_by or self.query.model._meta.ordering
-        def cmpvals(x, y):
-            for fieldname in ordering:
-                if fieldname.startswith('-'):
-                    fieldname = fieldname[1:]
-                    negate = True
-                else:
-                    negate = False
-                field = self.query.model._meta.get_field(fieldname)
-                attr_x = field.from_ldap(x[1].get(field.db_column, []), connection=self.connection)
-                attr_y = field.from_ldap(y[1].get(field.db_column, []), connection=self.connection)
-                # perform case insensitive comparison
-                if hasattr(attr_x, 'lower'):
-                    attr_x = attr_x.lower()
-                if hasattr(attr_y, 'lower'):
-                    attr_y = attr_y.lower()
-                val = negate and cmp(attr_y, attr_x) or cmp(attr_x, attr_y)
-                if val:
-                    return val
-            return 0
-        vals = sorted(vals, cmp=cmpvals)
-
-        # process results
-        pos = 0
-        for dn, attrs in vals:
-            # FIXME : This is not optimal, we retrieve more results than we need
-            # but there is probably no other options as we can't perform ordering
-            # server side.
-            if (self.query.low_mark and pos < self.query.low_mark) or \
-               (self.query.high_mark is not None and pos >= self.query.high_mark):
-                pos += 1
-                continue
-            row = []
-            for field in iter(fields):
-                if field.attname == 'dn':
-                    row.append(dn)
-                elif hasattr(field, 'from_ldap'):
-                    row.append(field.from_ldap(attrs.get(field.db_column, []), connection=self.connection))
-                else:
-                    row.append(None)
-            yield row
-            pos += 1
-
-
 class WhereNode(BaseWhereNode):
     def add(self, data, connector):
         if not isinstance(data, (list, tuple)):
@@ -236,7 +162,7 @@ class Query(BaseQuery):
         return number
 
     def get_compiler(self, using=None, connection=None):
-        return Compiler(self, ldapdb.connection, using)
+        return compiler.SQLCompiler(self, ldapdb.connection, using)
 
     def has_results(self, using):
         return self.get_count(using) != 0