feat(spp_registry): add database indexes for search performance

Add B-tree indexes on is_registrant, is_group, registration_date,
reg_id.value, and phone_no fields. Add pg_trgm trigram GIN indexes
on name, email, and phone_no to support efficient ILIKE substring
matching. Without these, ILIKE '%term%' queries do full table scans.

Author: gonzalesedwin1123

spp_registry/__manifest__.py

@@ -3,7 +3,7 @@
 {
     "name": "OpenSPP Registry",
     "category": "OpenSPP/Core",
-    "version": "19.0.2.0.0",
+    "version": "19.0.2.0.1",
     "sequence": 1,
     "author": "OpenSPP.org",
     "website": "https://github.com/OpenSPP/OpenSPP2",

spp_registry/models/phone_number.py

@@ -25,7 +25,7 @@ class SPPPhoneNumber(models.Model):
         index=True,
         domain=[("is_registrant", "=", True)],
     )
-    phone_no = fields.Char("Phone Number", required=True)
+    phone_no = fields.Char("Phone Number", required=True, index=True)
     phone_sanitized = fields.Char(compute="_compute_phone_sanitized", store=True)
     date_collected = fields.Date(
         default=fields.Date.today,
@@ -34,6 +34,14 @@ class SPPPhoneNumber(models.Model):
     disabled_by = fields.Many2one("res.users")
     country_id = fields.Many2one("res.country", "Country")
 
+    def init(self):
+        """Create trigram index for phone number ILIKE search."""
+        self.env.cr.execute("""
+            CREATE EXTENSION IF NOT EXISTS pg_trgm;
+            CREATE INDEX IF NOT EXISTS spp_phone_number_phone_no_trgm_idx
+                ON spp_phone_number USING gin (phone_no gin_trgm_ops);
+        """)
+
     @api.onchange("date_collected")
     def _check_date_collected(self):
         for record in self:

spp_registry/models/reg_id.py

@@ -23,7 +23,7 @@ class SPPRegistrantID(models.Model):
     )
     available_id_type_ids = fields.Many2many("spp.vocabulary.code", compute="_compute_available_id_type_ids")
     id_type_id = fields.Many2one("spp.vocabulary.code", "ID Type", required=True)
-    value = fields.Char(size=100)
+    value = fields.Char(size=100, index=True)
 
     expiry_date = fields.Date()
     id_type_as_str = fields.Char(related="id_type_id.display")

spp_registry/models/registrant.py

@@ -33,8 +33,8 @@ class SPPRegistrant(models.Model):
     disabled_by = fields.Many2one("res.users")
 
     reg_ids = fields.One2many("spp.registry.id", "partner_id", "Registrant IDs")
-    is_registrant = fields.Boolean("Registrant")
-    is_group = fields.Boolean("Group")
+    is_registrant = fields.Boolean("Registrant", index=True)
+    is_group = fields.Boolean("Group", index=True)
 
     name = fields.Char(index=True)
 
@@ -44,7 +44,7 @@ class SPPRegistrant(models.Model):
     phone_number_ids = fields.One2many("spp.phone.number", "partner_id", "Phone Numbers")
 
     company_id = fields.Many2one("res.company", required=True, default=lambda self: self.env.company)
-    registration_date = fields.Date(default=lambda self: fields.Date.today())
+    registration_date = fields.Date(default=lambda self: fields.Date.today(), index=True)
     tags_ids = fields.Many2many(
         "spp.vocabulary.code",
         relation="res_partner_registrant_tag_rel",
@@ -79,6 +79,20 @@ class SPPRegistrant(models.Model):
         compute="_compute_relationships_count",
     )
 
+    def init(self):
+        """Create trigram indexes for ILIKE search performance.
+
+        Standard B-tree indexes cannot help with ILIKE '%term%' (leading wildcard).
+        Trigram GIN indexes allow PostgreSQL to use indexes for substring matching.
+        """
+        self.env.cr.execute("""
+            CREATE EXTENSION IF NOT EXISTS pg_trgm;
+            CREATE INDEX IF NOT EXISTS res_partner_name_trgm_idx
+                ON res_partner USING gin (name gin_trgm_ops);
+            CREATE INDEX IF NOT EXISTS res_partner_email_trgm_idx
+                ON res_partner USING gin (email gin_trgm_ops);
+        """)
+
     @api.onchange("phone_number_ids")
     def phone_number_ids_change(self):
         phone = ""