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
+from plomtask.exceptions import (NotFoundException, BadFormatException,
+ HandledException)
@dataclass
class Process(BaseModel[int], ConditionsRelations):
"""Template for, and metadata for, Todos, and their arrangements."""
- table_name = 'processes'
-
# pylint: disable=too-many-instance-attributes
-
- def __init__(self, id_: int | None) -> None:
- super().__init__(id_)
+ table_name = 'processes'
+ to_save = ['calendarize']
+ to_save_versioned = ['title', 'description', 'effort']
+ to_save_relations = [('process_conditions', 'process', 'conditions', 0),
+ ('process_blockers', 'process', 'blockers', 0),
+ ('process_enables', 'process', 'enables', 0),
+ ('process_disables', 'process', 'disables', 0)]
+ to_search = ['title.newest', 'description.newest']
+
+ def __init__(self, id_: int | None, calendarize: bool = False) -> None:
+ BaseModel.__init__(self, id_)
+ ConditionsRelations.__init__(self)
self.title = VersionedAttribute(self, 'process_titles', 'UNNAMED')
self.description = VersionedAttribute(self, 'process_descriptions', '')
self.effort = VersionedAttribute(self, 'process_efforts', 1.0)
self.explicit_steps: list[ProcessStep] = []
- self.conditions: list[Condition] = []
- self.enables: list[Condition] = []
- self.disables: list[Condition] = []
+ self.calendarize = calendarize
@classmethod
def from_table_row(cls, db_conn: DatabaseConnection,
process.id_):
step = ProcessStep.from_table_row(db_conn, row_)
process.explicit_steps += [step] # pylint: disable=no-member
- for name in ('conditions', 'enables', 'disables'):
+ for name in ('conditions', 'blockers', 'enables', 'disables'):
table = f'process_{name}'
assert isinstance(process.id_, int)
for c_id in db_conn.column_where(table, 'condition',
just deleted under its feet), or if the parent step would not be
owned by the current Process.
"""
-
def walk_steps(node: ProcessStep) -> None:
if node.step_process_id == self.id_:
raise BadFormatException('bad step selection causes recursion')
def save(self, db_conn: DatabaseConnection) -> None:
"""Add (or re-write) self and connected items to DB."""
- self.save_core(db_conn)
+ super().save(db_conn)
assert isinstance(self.id_, int)
- self.title.save(db_conn)
- self.description.save(db_conn)
- self.effort.save(db_conn)
- db_conn.rewrite_relations('process_conditions', 'process', self.id_,
- [[c.id_] for c in self.conditions])
- db_conn.rewrite_relations('process_enables', 'process', self.id_,
- [[c.id_] for c in self.enables])
- db_conn.rewrite_relations('process_disables', 'process', self.id_,
- [[c.id_] for c in self.disables])
db_conn.delete_where('process_steps', 'owner', self.id_)
for step in self.explicit_steps:
step.save(db_conn)
def remove(self, db_conn: DatabaseConnection) -> None:
- """Remove from DB, with dependencies."""
+ """Remove from DB, with dependencies.
+
+ Guard against removal of Processes in use.
+ """
assert isinstance(self.id_, int)
- db_conn.delete_where('process_conditions', 'process', self.id_)
- db_conn.delete_where('process_enables', 'process', self.id_)
- db_conn.delete_where('process_disables', 'process', self.id_)
+ for _ in db_conn.row_where('process_steps', 'step_process', self.id_):
+ raise HandledException('cannot remove Process in use')
+ for _ in db_conn.row_where('todos', 'process', self.id_):
+ raise HandledException('cannot remove Process in use')
for step in self.explicit_steps:
step.remove(db_conn)
- db_conn.delete_where('process_titles', 'parent', self.id_)
- db_conn.delete_where('process_descriptions', 'parent', self.id_)
- db_conn.delete_where('process_efforts', 'parent', self.id_)
super().remove(db_conn)
self.step_process_id = step_process_id
self.parent_step_id = parent_step_id
- def save(self, db_conn: DatabaseConnection) -> None:
- """Default to simply calling self.save_core for simple cases."""
- self.save_core(db_conn)
-
def remove(self, db_conn: DatabaseConnection) -> None:
"""Remove from DB, and owner's .explicit_steps."""
owner = Process.by_id(db_conn, self.owner_id)