Paginación de access

sqlquerybuilder/__init__.py

@@ -8,7 +8,7 @@ PYTHON3 = True
 if sys.version_info[0] < 3:
     PYTHON3 = False
 
-VERSION = "0.0.14"
+VERSION = "0.0.15"
 
 
 def is_map(obj):
@@ -105,8 +105,8 @@ class Q(QMixin):
     _mode = "MYSQL"
 
     lookup_types = [
-        'icontains', 'istartswith',  'iendswith',
+        'icontains', 'istartswith', 'iendswith',
-        'contains', 'startswith',  'endswith',
+        'contains', 'startswith', 'endswith',
         'year', 'month', 'day', 'week_day', 'hour', 'minute', 'second',
         'isnull', 'in']
 
@@ -311,6 +311,9 @@ class SQLQuery(object):
         return clone
 
     def __getitem__(self, slice):
+        if isinstance(slice, str):
+            raise IndexError
+
         clone = self._clone()
         clone._limits = slice
         return clone
@@ -423,6 +426,31 @@ class SQLCompiler(object):
                     self.get_group_by(),
                     self.get_limits(), ") as tbl_paginated WHERE ", conds]
 
+        if self.sql_mode == "ACCESS" and self._limits and \
+           self._limits.start is not None and self._limits.stop is not None:
+            conds = []
+
+            if self._limits.start is not None:
+                conds.append("row_number > %s" % self._limits.start)
+
+            if self._limits.stop is not None:
+                conds.append("row_number <= %s" % self._limits.stop)
+
+            conds = " AND ".join(conds)
+            count = "(select count(*) FROM {table} as t2 WHERE t2.{id} <= {table}.{id}) as row_number".format(table=table,
+                                                                                                              id=self._order_by[0])
+
+            return ["SELECT * FROM (", "SELECT", self.get_columns(), ",",
+                    count,
+                    # "FROM",
+                    # table,
+                    self.get_joins(),
+                    self.get_where(),
+                    self.get_group_by(),
+                    " FROM ",
+                    table,
+                    ") WHERE ", conds]
+
         return sql
 
     def _compile(self):
@@ -433,7 +461,7 @@ class SQLCompiler(object):
 
     __str__ = __repr__
 
-    @property
+    @ property
     def sql(self,):
         return self.__str__()
 
@@ -447,6 +475,6 @@ class Queryset(SQLCompiler, SQLQuery):
 
 class SQLModel(object):
 
-    @classproperty
+    @ classproperty
     def objects(cls):
         return Queryset(cls.table, getattr(cls, 'sql_mode', None))