From: Christian Heller <c.heller@plomlompom.de>
Date: Wed, 1 May 2024 23:11:36 +0000 (+0200)
Subject: Move VersionedAttributes code into appropriotely named module.
X-Git-Url: https://plomlompom.com/repos/%7B%7B%20web_path%20%7D%7D/%7B%7Bdb.prefix%7D%7D/do_todos?a=commitdiff_plain;h=a0244482692edf794960f3c2af9461be2ad15e8a;p=plomtask

Move VersionedAttributes code into appropriotely named module.
---

diff --git a/plomtask/conditions.py b/plomtask/conditions.py
index 45aa62b..539db9c 100644
--- a/plomtask/conditions.py
+++ b/plomtask/conditions.py
@@ -3,7 +3,7 @@ from __future__ import annotations
 from typing import Any
 from sqlite3 import Row
 from plomtask.db import DatabaseConnection, BaseModel
-from plomtask.misc import VersionedAttribute
+from plomtask.versioned_attributes import VersionedAttribute
 from plomtask.exceptions import HandledException
 
 
diff --git a/plomtask/misc.py b/plomtask/misc.py
deleted file mode 100644
index ab39df0..0000000
--- a/plomtask/misc.py
+++ /dev/null
@@ -1,68 +0,0 @@
-"""Attributes whose values are recorded as a timestamped history."""
-from datetime import datetime
-from typing import Any
-from sqlite3 import Row
-from time import sleep
-from plomtask.db import DatabaseConnection
-
-TIMESTAMP_FMT = '%Y-%m-%d %H:%M:%S.%f'
-
-
-class VersionedAttribute:
-    """Attributes whose values are recorded as a timestamped history."""
-
-    def __init__(self,
-                 parent: Any, table_name: str, default: str | float) -> None:
-        self.parent = parent
-        self.table_name = table_name
-        self.default = default
-        self.history: dict[str, str | float] = {}
-
-    @property
-    def _newest_timestamp(self) -> str:
-        """Return most recent timestamp."""
-        return sorted(self.history.keys())[-1]
-
-    @property
-    def newest(self) -> str | float:
-        """Return most recent value, or self.default if self.history empty."""
-        if 0 == len(self.history):
-            return self.default
-        return self.history[self._newest_timestamp]
-
-    def set(self, value: str | float) -> None:
-        """Add to self.history if and only if not same value as newest one.
-
-        Note that we wait one micro-second, as timestamp comparison to check
-        most recent elements only goes up to that precision.
-
-        Also note that we don't check against .newest because that may make us
-        compare value against .default even if not set. We want to be able to
-        explicitly set .default as the first element.
-        """
-        sleep(0.00001)
-        if 0 == len(self.history) \
-                or value != self.history[self._newest_timestamp]:
-            self.history[datetime.now().strftime(TIMESTAMP_FMT)] = value
-
-    def history_from_row(self, row: Row) -> None:
-        """Extend self.history from expected table row format."""
-        self.history[row[1]] = row[2]
-
-    def at(self, queried_time: str) -> str | float:
-        """Retrieve value of timestamp nearest queried_time from the past."""
-        sorted_timestamps = sorted(self.history.keys())
-        if 0 == len(sorted_timestamps):
-            return self.default
-        selected_timestamp = sorted_timestamps[0]
-        for timestamp in sorted_timestamps[1:]:
-            if timestamp > queried_time:
-                break
-            selected_timestamp = timestamp
-        return self.history[selected_timestamp]
-
-    def save(self, db_conn: DatabaseConnection) -> None:
-        """Save as self.history entries, but first wipe old ones."""
-        db_conn.rewrite_relations(self.table_name, 'parent', self.parent.id_,
-                                  [[item[0], item[1]]
-                                   for item in self.history.items()])
diff --git a/plomtask/processes.py b/plomtask/processes.py
index 375a0be..21e2d81 100644
--- a/plomtask/processes.py
+++ b/plomtask/processes.py
@@ -4,7 +4,7 @@ from dataclasses import dataclass
 from typing import Set, Any
 from sqlite3 import Row
 from plomtask.db import DatabaseConnection, BaseModel
-from plomtask.misc import VersionedAttribute
+from plomtask.versioned_attributes import VersionedAttribute
 from plomtask.conditions import Condition, ConditionsRelations
 from plomtask.exceptions import (NotFoundException, BadFormatException,
                                  HandledException)
diff --git a/plomtask/versioned_attributes.py b/plomtask/versioned_attributes.py
new file mode 100644
index 0000000..ab39df0
--- /dev/null
+++ b/plomtask/versioned_attributes.py
@@ -0,0 +1,68 @@
+"""Attributes whose values are recorded as a timestamped history."""
+from datetime import datetime
+from typing import Any
+from sqlite3 import Row
+from time import sleep
+from plomtask.db import DatabaseConnection
+
+TIMESTAMP_FMT = '%Y-%m-%d %H:%M:%S.%f'
+
+
+class VersionedAttribute:
+    """Attributes whose values are recorded as a timestamped history."""
+
+    def __init__(self,
+                 parent: Any, table_name: str, default: str | float) -> None:
+        self.parent = parent
+        self.table_name = table_name
+        self.default = default
+        self.history: dict[str, str | float] = {}
+
+    @property
+    def _newest_timestamp(self) -> str:
+        """Return most recent timestamp."""
+        return sorted(self.history.keys())[-1]
+
+    @property
+    def newest(self) -> str | float:
+        """Return most recent value, or self.default if self.history empty."""
+        if 0 == len(self.history):
+            return self.default
+        return self.history[self._newest_timestamp]
+
+    def set(self, value: str | float) -> None:
+        """Add to self.history if and only if not same value as newest one.
+
+        Note that we wait one micro-second, as timestamp comparison to check
+        most recent elements only goes up to that precision.
+
+        Also note that we don't check against .newest because that may make us
+        compare value against .default even if not set. We want to be able to
+        explicitly set .default as the first element.
+        """
+        sleep(0.00001)
+        if 0 == len(self.history) \
+                or value != self.history[self._newest_timestamp]:
+            self.history[datetime.now().strftime(TIMESTAMP_FMT)] = value
+
+    def history_from_row(self, row: Row) -> None:
+        """Extend self.history from expected table row format."""
+        self.history[row[1]] = row[2]
+
+    def at(self, queried_time: str) -> str | float:
+        """Retrieve value of timestamp nearest queried_time from the past."""
+        sorted_timestamps = sorted(self.history.keys())
+        if 0 == len(sorted_timestamps):
+            return self.default
+        selected_timestamp = sorted_timestamps[0]
+        for timestamp in sorted_timestamps[1:]:
+            if timestamp > queried_time:
+                break
+            selected_timestamp = timestamp
+        return self.history[selected_timestamp]
+
+    def save(self, db_conn: DatabaseConnection) -> None:
+        """Save as self.history entries, but first wipe old ones."""
+        db_conn.rewrite_relations(self.table_name, 'parent', self.parent.id_,
+                                  [[item[0], item[1]]
+                                   for item in self.history.items()])
diff --git a/tests/versioned_attributes.py b/tests/versioned_attributes.py
index fdb1939..5238d70 100644
--- a/tests/versioned_attributes.py
+++ b/tests/versioned_attributes.py
@@ -3,7 +3,7 @@ from unittest import TestCase
 from time import sleep
 from datetime import datetime
 from tests.utils import TestCaseWithDB
-from plomtask.misc import VersionedAttribute, TIMESTAMP_FMT
+from plomtask.versioned_attributes import VersionedAttribute, TIMESTAMP_FMT
 from plomtask.db import BaseModel
 
 SQL_TEST_TABLE = '''