🐛 Fix session filter feature by selection fo PostgreSql layers (#756)

* Move get layer fids from sever fids on model get expression

* Only expression template '$id IN (...)'.

---------

Co-authored-by: wlorenzetti <lorenzett@gis3w.it>
(cherry picked from commit 6ba9381)

g3w-admin/qdjango/models/filters.py

@@ -16,12 +16,14 @@
 from django.utils.crypto import salted_hmac
 from model_utils.models import TimeStampedModel
 from usersmanage.models import User
+from core.utils.qgisapi import get_layer_fids_from_server_fids
 from .projects import Layer
 from datetime import datetime
 import time
 import six
 import base64
 import logging
+import re
 
 
 logger = logging.getLogger(__name__)
@@ -80,7 +82,17 @@ def get_expr_for_token(cls, token, layer):
                 f"More than one token or more expressions for this layer '{layer.qgs_layer_id}' exist: skipping filtering!")
             return ""
         else:
-            return stf_layers[0].qgs_expr
+
+            qgs_expr = stf_layers[0].qgs_expr
+            ids = re.findall(r'\((.*?)\)', stf_layers[0].qgs_expr)
+
+            # Check for `postgres` layer and qgis expression template '$id IN (...)'
+            if layer.layer_type == 'postgres' and len(ids) == 1:
+                fids = ids[0].split(',')
+                fids = get_layer_fids_from_server_fids(map(str, fids), layer.qgis_layer)
+                return f"$id IN ({','.join(map(str, fids))})"
+            else:
+                return qgs_expr
 
     class Meta:
         app_label = 'qdjango'

g3w-admin/qdjango/tests/test_api.py

@@ -1137,7 +1137,7 @@ def test_tokenfilter_mode_api(self):
 
         self.assertEqual(resp['data'], {
                 'layer': cities.qgs_layer_id,
-                'qgs_expression': '$id NOT IN (9,8,6,0)',
+                'qgs_expression': '$id NOT IN (6,8,9,0)',
                 'name': 'filter 1 layer cities',
                 'fid': 1,
                 'state': 'created'
@@ -1154,7 +1154,7 @@ def test_tokenfilter_mode_api(self):
 
         self.assertEqual(resp['data'], {
             'layer': cities.qgs_layer_id,
-            'qgs_expression': '$id NOT IN (9,8,6,0)',
+            'qgs_expression': '$id NOT IN (6,8,9,0)',
             'name': 'filter 1 layer cities',
             'fid': 1,
             'state': 'updated'
@@ -1180,7 +1180,7 @@ def test_tokenfilter_mode_api(self):
 
         self.assertEqual(resp['data'], {
             'layer': cities.qgs_layer_id,
-            'qgs_expression': '$id NOT IN (9,8,6,0) AND $id NOT IN (2,1)',
+            'qgs_expression': '$id NOT IN (6,8,9,0) AND $id NOT IN (1,2)',
             'name': 'filter 2 layer cities',
             'fid': 2,
             'state': 'created'
@@ -1213,7 +1213,7 @@ def test_tokenfilter_mode_api(self):
 
         # Check inside the current fitlertoken
         token = sf.token
-        self.assertEqual(sf.stf_layers.all()[0].qgs_expr, '$id NOT IN (9,8,6,0)')
+        self.assertEqual(sf.stf_layers.all()[0].qgs_expr, '$id NOT IN (6,8,9,0)')
 
         # Delete fitler token and apply again to check for new fitler token value
         SessionTokenFilter.objects.all().delete()
@@ -1226,7 +1226,7 @@ def test_tokenfilter_mode_api(self):
                                             }, logout=False).content)
         sf = SessionTokenFilter.objects.all()[0]
         self.assertFalse(token == sf.token)
-        self.assertEqual(sf.stf_layers.all()[0].qgs_expr, '$id NOT IN (9,8,6,0)')
+        self.assertEqual(sf.stf_layers.all()[0].qgs_expr, '$id NOT IN (6,8,9,0)')
 
         # Filter for layer check /api/config REST API:
         resp = json.loads(self._testApiCall('group-project-map-config',

g3w-admin/qdjango/vector.py

@@ -417,18 +417,6 @@ def _get_sessiontokenfilter():
         fidsin = request_data.get('fidsin')
         fidsout = request_data.get('fidsout')
 
-        # Get layer fids from server fids
-        if fidsin:
-            fidsin = get_layer_fids_from_server_fids([str(fid) for fid in fidsin.split(',')],
-                                                     self.metadata_layer.qgis_layer)
-            fidsin.reverse()
-            fidsin = ",".join(map(str, fidsin))
-        if fidsout:
-            fidsout = get_layer_fids_from_server_fids([str(fid) for fid in fidsout.split(',')],
-                                                     self.metadata_layer.qgis_layer)
-            fidsout.reverse()
-            fidsout = ",".join(map(str, fidsout))
-
         token_data = {}
 
         def _create_qgs_expr(s, fidsin=None, fidsout=None):