From 71ff5e8bd06f44b7f32b0167ea9258bf37746046 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20S=C3=A1nchez=20Moreno?= <jose@o2w.es>
Date: Tue, 16 Jun 2020 18:00:09 +0200
Subject: [PATCH] =?UTF-8?q?Paginaci=C3=B3n=20de=20access?=
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Content-Type: text/plain; charset=UTF-8
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---
 sqlquerybuilder/__init__.py | 33 +++++++++++++++++++++++++++++----
 1 file changed, 29 insertions(+), 4 deletions(-)

diff --git a/sqlquerybuilder/__init__.py b/sqlquerybuilder/__init__.py
index b6f5952..d3be42c 100644
--- a/sqlquerybuilder/__init__.py
+++ b/sqlquerybuilder/__init__.py
@@ -105,8 +105,8 @@ class Q(QMixin):
     _mode = "MYSQL"
 
     lookup_types = [
-        'icontains', 'istartswith',  'iendswith',
-        'contains', 'startswith',  'endswith',
+        'icontains', 'istartswith', 'iendswith',
+        'contains', 'startswith', 'endswith',
         'year', 'month', 'day', 'week_day', 'hour', 'minute', 'second',
         'isnull', 'in']
 
@@ -426,6 +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):
@@ -436,7 +461,7 @@ class SQLCompiler(object):
 
     __str__ = __repr__
 
-    @property
+    @ property
     def sql(self,):
         return self.__str__()
 
@@ -450,6 +475,6 @@ class Queryset(SQLCompiler, SQLQuery):
 
 class SQLModel(object):
 
-    @classproperty
+    @ classproperty
     def objects(cls):
         return Queryset(cls.table, getattr(cls, 'sql_mode', None))