feat: update retry methods and queries on sql repository

taipy/core/_repository/_sql_repository.py

@@ -11,9 +11,12 @@
 
 import json
 import pathlib
+import sqlite3
+from datetime import datetime
 from sqlite3 import DatabaseError
 from typing import Any, Dict, Iterable, List, Optional, Type, Union
 
+from sqlalchemy import text
 from sqlalchemy.dialects import sqlite
 from sqlalchemy.exc import NoResultFound, OperationalError
 
@@ -26,13 +29,20 @@
 
 
 class _SQLRepository(_AbstractRepository[ModelType, Entity]):
-    __EXCEPTIONS_TO_RETRY = (OperationalError,)
+    __EXCEPTIONS_TO_RETRY = (
+        OperationalError,
+        sqlite3.OperationalError,
+        sqlite3.InterfaceError,
+        IndexError,
+        StopIteration,
+    )
+    MAX_MODEL_NOT_FOUND_RETRY = 10
     _logger = _TaipyLogger._get_logger()
 
     def __init__(self, model_type: Type[ModelType], converter: Type[Converter]):
         """
         Holds common methods to be used and extended when the need for saving
-        dataclasses in a sqlite database.
+        dataclasses in a SqlLite database.
 
         Some lines have type: ignore because MyPy won't recognize some generic attributes. This
         should be revised in the future.
@@ -73,19 +83,24 @@ def _exists(self, entity_id: str):
 
     @_retry_repository_operation(__EXCEPTIONS_TO_RETRY)
     def _load(self, entity_id: str) -> Entity:
-        query = self.table.select().filter_by(id=entity_id)
-
-        if entry := self.db.execute(str(query.compile(dialect=sqlite.dialect())), [entity_id]).fetchone():
-            entry = self.model_type.from_dict(entry)
-            return self.converter._model_to_entity(entry)
+        query = self.table.select().filter_by(id=entity_id).order_by(text("updated_at DESC"))
+
+        for _ in range(self.MAX_MODEL_NOT_FOUND_RETRY):
+            if entry := self.db.execute(str(query.compile(dialect=sqlite.dialect())), [entity_id]).fetchall():
+                entry = sorted(
+                    entry, key=lambda x: x["updated_at"] if x["updated_at"] is not None else "", reverse=True
+                )
+                entry = entry[0]
+                entry = self.model_type.from_dict(entry)
+                return self.converter._model_to_entity(entry)
         raise ModelNotFound(str(self.model_type.__name__), entity_id)
 
     def _load_all(self, filters: Optional[List[Dict]] = None) -> List[Entity]:
         query = self.table.select()
         entities: List[Entity] = []
 
         for f in filters or [{}]:
-            filtered_query = query.filter_by(**f)
+            filtered_query = query.filter_by(**f).order_by(text("updated_at DESC"))
             try:
                 entries = self.db.execute(
                     str(filtered_query.compile(dialect=sqlite.dialect())),
@@ -100,25 +115,26 @@ def _load_all(self, filters: Optional[List[Dict]] = None) -> List[Entity]:
     def _delete(self, entity_id: str):
         delete_query = self.table.delete().filter_by(id=entity_id)
         cursor = self.db.execute(str(delete_query.compile(dialect=sqlite.dialect())), [entity_id])
-
         if cursor.rowcount == 0:
             raise ModelNotFound(str(self.model_type.__name__), entity_id)
 
         self.db.commit()
+        cursor.close()
 
     def _delete_all(self):
-        self.db.execute(str(self.table.delete().compile(dialect=sqlite.dialect())))
+        cursor = self.db.execute(str(self.table.delete().compile(dialect=sqlite.dialect())))
         self.db.commit()
+        cursor.close()
 
     def _delete_many(self, ids: Iterable[str]):
         for entity_id in ids:
             self._delete(entity_id)
 
     def _delete_by(self, attribute: str, value: str):
         delete_by_query = self.table.delete().filter_by(**{attribute: value})
-
-        self.db.execute(str(delete_by_query.compile(dialect=sqlite.dialect())), [value])
+        cursor = self.db.execute(str(delete_by_query.compile(dialect=sqlite.dialect())), [value])
         self.db.commit()
+        cursor.close()
 
     def _search(self, attribute: str, value: Any, filters: Optional[List[Dict]] = None) -> List[Entity]:
         query = self.table.select().filter_by(**{attribute: value})
@@ -219,12 +235,17 @@ def __get_entities_by_config_and_owner(
     @_retry_repository_operation(__EXCEPTIONS_TO_RETRY)
     def __insert_model(self, model: ModelType):
         query = self.table.insert()
-        self.db.execute(str(query.compile(dialect=sqlite.dialect())), model.to_list())
+        query_str = str(query.compile(dialect=sqlite.dialect()))
+        model.updated_at = datetime.now()  # type: ignore
+
+        cursor = self.db.execute(query_str, model.to_list())
         self.db.commit()
+        cursor.close()
 
     @_retry_repository_operation(__EXCEPTIONS_TO_RETRY)
     def _update_entry(self, model):
         query = self.table.update().filter_by(id=model.id)
+        model.updated_at = datetime.now()  # type: ignore
         cursor = self.db.execute(str(query.compile(dialect=sqlite.dialect())), model.to_list() + [model.id])
         self.db.commit()
         cursor.close()

taipy/core/_version/_version_model.py

@@ -12,7 +12,7 @@
 from dataclasses import dataclass
 from typing import Any, Dict
 
-from sqlalchemy import Boolean, Column, String, Table
+from sqlalchemy import TIMESTAMP, Boolean, Column, String, Table
 
 from .._repository._base_taipy_model import _BaseModel
 from .._repository.db._sql_base_model import mapper_registry
@@ -30,6 +30,7 @@ class _VersionModel(_BaseModel):
         Column("is_production", Boolean),
         Column("is_development", Boolean),
         Column("is_latest", Boolean),
+        Column("updated_at", TIMESTAMP),
     )
     id: str
     config: str
@@ -55,4 +56,5 @@ def to_list(self):
             self.is_production,
             self.is_development,
             self.is_latest,
+            self.updated_at,
         ]

taipy/core/cycle/_cycle_model.py

@@ -12,7 +12,7 @@
 from dataclasses import dataclass
 from typing import Any, Dict
 
-from sqlalchemy import JSON, Column, Enum, String, Table
+from sqlalchemy import JSON, TIMESTAMP, Column, Enum, String, Table
 
 from taipy.config.common.frequency import Frequency
 
@@ -34,6 +34,7 @@ class _CycleModel(_BaseModel):
         Column("creation_date", String),
         Column("start_date", String),
         Column("end_date", String),
+        Column("updated_at", TIMESTAMP),
     )
     id: CycleId
     name: str
@@ -64,4 +65,5 @@ def to_list(self):
             self.creation_date,
             self.start_date,
             self.end_date,
+            self.updated_at,
         ]

taipy/core/data/_data_model.py

@@ -12,7 +12,7 @@
 from dataclasses import dataclass
 from typing import Any, Dict, List, Optional
 
-from sqlalchemy import JSON, Boolean, Column, Enum, Float, String, Table, UniqueConstraint
+from sqlalchemy import JSON, TIMESTAMP, Boolean, Column, Enum, Float, String, Table, UniqueConstraint
 
 from taipy.config.common.scope import Scope
 
@@ -42,6 +42,7 @@ class _DataNodeModel(_BaseModel):
         Column("editor_id", String),
         Column("editor_expiration_date", String),
         Column("data_node_properties", JSON),
+        Column("updated_at", TIMESTAMP),
     )
     __table_args__ = (UniqueConstraint("config_id", "owner_id", name="_config_owner_uc"),)
 
@@ -98,4 +99,5 @@ def to_list(self):
             self.editor_id,
             self.editor_expiration_date,
             _BaseModel._serialize_attribute(self.data_node_properties),
+            self.updated_at,
         ]

taipy/core/job/_job_model.py

@@ -12,7 +12,7 @@
 from dataclasses import dataclass
 from typing import Any, Dict, List
 
-from sqlalchemy import JSON, Boolean, Column, Enum, String, Table
+from sqlalchemy import JSON, TIMESTAMP, Boolean, Column, Enum, String, Table
 
 from .._repository._base_taipy_model import _BaseModel
 from .._repository.db._sql_base_model import mapper_registry
@@ -36,6 +36,7 @@ class _JobModel(_BaseModel):
         Column("subscribers", JSON),
         Column("stacktrace", JSON),
         Column("version", String),
+        Column("updated_at", TIMESTAMP),
     )
     id: JobId
     task_id: str
@@ -75,4 +76,5 @@ def to_list(self):
             _BaseModel._serialize_attribute(self.subscribers),
             _BaseModel._serialize_attribute(self.stacktrace),
             self.version,
+            self.updated_at,
         ]

taipy/core/scenario/_scenario_model.py

@@ -12,7 +12,7 @@
 from dataclasses import dataclass
 from typing import Any, Dict, List, Optional
 
-from sqlalchemy import JSON, Boolean, Column, String, Table
+from sqlalchemy import JSON, TIMESTAMP, Boolean, Column, String, Table
 
 from .._repository._base_taipy_model import _BaseModel
 from .._repository.db._sql_base_model import mapper_registry
@@ -40,6 +40,7 @@ class _ScenarioModel(_BaseModel):
         Column("version", String),
         Column("sequences", JSON),
         Column("cycle", String),
+        Column("updated_at", TIMESTAMP),
     )
     id: ScenarioId
     config_id: str
@@ -85,4 +86,5 @@ def to_list(self):
             self.version,
             _BaseModel._serialize_attribute(self.sequences),
             self.cycle,
+            self.updated_at,
         ]

taipy/core/submission/_submission_model.py

@@ -12,7 +12,7 @@
 from dataclasses import dataclass
 from typing import Any, Dict, List, Optional, Union
 
-from sqlalchemy import JSON, Boolean, Column, Enum, String, Table
+from sqlalchemy import JSON, TIMESTAMP, Boolean, Column, Enum, String, Table
 
 from .._repository._base_taipy_model import _BaseModel
 from .._repository.db._sql_base_model import mapper_registry
@@ -41,6 +41,7 @@ class _SubmissionModel(_BaseModel):
         Column("running_jobs", JSON),
         Column("blocked_jobs", JSON),
         Column("pending_jobs", JSON),
+        Column("updated_at", TIMESTAMP),
     )
     id: str
     entity_id: str
@@ -95,4 +96,5 @@ def to_list(self):
             _BaseModel._serialize_attribute(self.running_jobs),
             _BaseModel._serialize_attribute(self.blocked_jobs),
             _BaseModel._serialize_attribute(self.pending_jobs),
+            self.updated_at,
         ]

taipy/core/task/_task_model.py

@@ -12,7 +12,7 @@
 from dataclasses import dataclass
 from typing import Any, Dict, List, Optional
 
-from sqlalchemy import JSON, Boolean, Column, String, Table
+from sqlalchemy import JSON, TIMESTAMP, Boolean, Column, String, Table
 
 from .._repository._base_taipy_model import _BaseModel
 from .._repository.db._sql_base_model import mapper_registry
@@ -35,6 +35,7 @@ class _TaskModel(_BaseModel):
         Column("version", String),
         Column("skippable", Boolean),
         Column("properties", JSON),
+        Column("updated_at", TIMESTAMP),
     )
     id: str
     owner_id: Optional[str]
@@ -77,4 +78,5 @@ def to_list(self):
             self.version,
             self.skippable,
             _BaseModel._serialize_attribute(self.properties),
+            self.updated_at,
         ]