From: Christian Heller Date: Mon, 5 Aug 2024 01:52:36 +0000 (+0200) Subject: Simplify ProcessStepsNode JSON serialization. X-Git-Url: https://plomlompom.com/repos/%7B%7B%20web_path%20%7D%7D/%7B%7Bprefix%7D%7D/%7B%7Bdb.prefix%7D%7D/%7B%7Bdb.prefix%7D%7D/process?a=commitdiff_plain;h=4da102dd68ddf3373dc54d86f9c67b0517616b73;p=plomtask Simplify ProcessStepsNode JSON serialization. --- diff --git a/plomtask/http.py b/plomtask/http.py index 36a5d78..475f87f 100644 --- a/plomtask/http.py +++ b/plomtask/http.py @@ -16,7 +16,8 @@ from plomtask.exceptions import (HandledException, BadFormatException, from plomtask.db import DatabaseConnection, DatabaseFile, BaseModel from plomtask.processes import Process, ProcessStep, ProcessStepsNode from plomtask.conditions import Condition -from plomtask.todos import Todo, TodoOrProcStepNode, DictableNode +from plomtask.todos import Todo, TodoOrProcStepNode +from plomtask.misc import DictableNode TEMPLATES_DIR = 'templates' @@ -385,12 +386,12 @@ class TaskHandler(BaseHTTPRequestHandler): steps_nodes: list[TodoOrProcStepNode]) -> int: for process_step_node in process_step_nodes: node_id += 1 - node = TodoOrProcStepNode(node_id, None, - process_step_node.process, []) + proc = Process.by_id(self.conn, + process_step_node.step.step_process_id) + node = TodoOrProcStepNode(node_id, None, proc, []) steps_nodes += [node] node_id = walk_process_steps( - node_id, list(process_step_node.steps.values()), - node.children) + node_id, process_step_node.steps, node.children) return node_id def walk_todo_steps(node_id: int, todos: list[Todo], @@ -428,8 +429,8 @@ class TaskHandler(BaseHTTPRequestHandler): todo_steps = [step.todo for step in todo.get_step_tree(set()).children] process_tree = todo.process.get_steps(self.conn, None) steps_todo_to_process: list[TodoOrProcStepNode] = [] - last_node_id = walk_process_steps( - 0, list(process_tree.values()), steps_todo_to_process) + last_node_id = walk_process_steps(0, process_tree, + steps_todo_to_process) for steps_node in steps_todo_to_process: steps_node.fillable = True walk_todo_steps(last_node_id, todo_steps, steps_todo_to_process) @@ -518,7 +519,8 @@ class TaskHandler(BaseHTTPRequestHandler): preset_top_step = process_id return {'process': process, 'is_new': process.id_ is None, 'preset_top_step': preset_top_step, - 'steps': process.get_steps(self.conn), 'owners': owners, + 'steps': process.get_steps(self.conn), + 'owners': owners, 'n_todos': len(Todo.by_process_id(self.conn, process.id_)), 'process_candidates': Process.all(self.conn), 'condition_candidates': Condition.all(self.conn)} diff --git a/plomtask/misc.py b/plomtask/misc.py new file mode 100644 index 0000000..fa79bf5 --- /dev/null +++ b/plomtask/misc.py @@ -0,0 +1,33 @@ +"""What doesn't fit elsewhere so far.""" +from typing import Any + + +class DictableNode: + """Template for display chain nodes providing .as_dict_and_refs.""" + # pylint: disable=too-few-public-methods + _to_dict: list[str] = [] + + def __init__(self, *args: Any) -> None: + for i, arg in enumerate(args): + setattr(self, self._to_dict[i], arg) + + @property + def as_dict_and_refs(self) -> tuple[dict[str, object], list[Any]]: + """Return self as json.dumps-ready dict, list of referenced objects.""" + d = {} + refs = [] + for name in self._to_dict: + attr = getattr(self, name) + if hasattr(attr, 'id_'): + d[name] = attr.id_ + continue + if isinstance(attr, list): + d[name] = [] + for item in attr: + item_d, item_refs = item.as_dict_and_refs + d[name] += [item_d] + for item_ref in [r for r in item_refs if r not in refs]: + refs += [item_ref] + continue + d[name] = attr + return d, refs diff --git a/plomtask/processes.py b/plomtask/processes.py index 9870ab3..b68ffd8 100644 --- a/plomtask/processes.py +++ b/plomtask/processes.py @@ -1,8 +1,8 @@ """Collecting Processes and Process-related items.""" from __future__ import annotations -from dataclasses import dataclass from typing import Set, Any from sqlite3 import Row +from plomtask.misc import DictableNode from plomtask.db import DatabaseConnection, BaseModel from plomtask.versioned_attributes import VersionedAttribute from plomtask.conditions import Condition, ConditionsRelations @@ -10,15 +10,15 @@ from plomtask.exceptions import (NotFoundException, BadFormatException, HandledException) -@dataclass -class ProcessStepsNode: +class ProcessStepsNode(DictableNode): """Collects what's useful to know for ProcessSteps tree display.""" - process: Process - parent_id: int | None + # pylint: disable=too-few-public-methods + step: ProcessStep is_explicit: bool - steps: dict[int, ProcessStepsNode] + steps: list[ProcessStepsNode] seen: bool = False is_suppressed: bool = False + _to_dict = ['step', 'is_explicit', 'steps', 'seen', 'is_suppressed'] class Process(BaseModel[int], ConditionsRelations): @@ -87,7 +87,7 @@ class Process(BaseModel[int], ConditionsRelations): return [self.__class__.by_id(db_conn, id_) for id_ in owner_ids] def get_steps(self, db_conn: DatabaseConnection, external_owner: - Process | None = None) -> dict[int, ProcessStepsNode]: + Process | None = None) -> list[ProcessStepsNode]: """Return tree of depended-on explicit and implicit ProcessSteps.""" def make_node(step: ProcessStep, suppressed: bool) -> ProcessStepsNode: @@ -95,26 +95,26 @@ class Process(BaseModel[int], ConditionsRelations): if external_owner is not None: is_explicit = step.owner_id == external_owner.id_ process = self.__class__.by_id(db_conn, step.step_process_id) - step_steps = {} + step_steps = [] if not suppressed: step_steps = process.get_steps(db_conn, external_owner) - return ProcessStepsNode(process, step.parent_step_id, - is_explicit, step_steps, False, suppressed) + return ProcessStepsNode(step, is_explicit, step_steps, False, + suppressed) - def walk_steps(node_id: int, node: ProcessStepsNode) -> None: - node.seen = node_id in seen_step_ids - seen_step_ids.add(node_id) + def walk_steps(node: ProcessStepsNode) -> None: + node.seen = node.step.id_ in seen_step_ids + assert isinstance(node.step.id_, int) + seen_step_ids.add(node.step.id_) if node.is_suppressed: return explicit_children = [s for s in self.explicit_steps - if s.parent_step_id == node_id] + if s.parent_step_id == node.step.id_] for child in explicit_children: - assert isinstance(child.id_, int) - node.steps[child.id_] = make_node(child, False) - for id_, step in node.steps.items(): - walk_steps(id_, step) + node.steps += [make_node(child, False)] + for step in node.steps: + walk_steps(step) - steps: dict[int, ProcessStepsNode] = {} + step_nodes: list[ProcessStepsNode] = [] seen_step_ids: Set[int] = set() if external_owner is None: external_owner = self @@ -122,10 +122,10 @@ class Process(BaseModel[int], ConditionsRelations): if s.parent_step_id is None]: assert isinstance(step.id_, int) new_node = make_node(step, step in external_owner.suppressed_steps) - steps[step.id_] = new_node - for step_id, step_node in steps.items(): - walk_steps(step_id, step_node) - return steps + step_nodes += [new_node] + for step_node in step_nodes: + walk_steps(step_node) + return step_nodes def set_step_suppressions(self, db_conn: DatabaseConnection, step_ids: list[int]) -> None: diff --git a/plomtask/todos.py b/plomtask/todos.py index 5782df0..3291107 100644 --- a/plomtask/todos.py +++ b/plomtask/todos.py @@ -2,6 +2,7 @@ from __future__ import annotations from typing import Any, Set from sqlite3 import Row +from plomtask.misc import DictableNode from plomtask.db import DatabaseConnection, BaseModel from plomtask.processes import Process, ProcessStepsNode from plomtask.versioned_attributes import VersionedAttribute @@ -11,37 +12,6 @@ from plomtask.exceptions import (NotFoundException, BadFormatException, from plomtask.dating import valid_date -class DictableNode: - """Template for TodoNode, TodoOrStepsNode providing .as_dict_and_refs.""" - # pylint: disable=too-few-public-methods - _to_dict: list[str] = [] - - def __init__(self, *args: Any) -> None: - for i, arg in enumerate(args): - setattr(self, self._to_dict[i], arg) - - @property - def as_dict_and_refs(self) -> tuple[dict[str, object], list[Any]]: - """Return self as json.dumps-ready dict, list of referenced objects.""" - d = {} - refs = [] - for name in self._to_dict: - attr = getattr(self, name) - if hasattr(attr, 'id_'): - d[name] = attr.id_ - continue - if isinstance(attr, list): - d[name] = [] - for item in attr: - item_d, item_refs = item.as_dict_and_refs - d[name] += [item_d] - for item_ref in [r for r in item_refs if r not in refs]: - refs += [item_ref] - continue - d[name] = attr - return d, refs - - class TodoNode(DictableNode): """Collects what's useful to know for Todo/Condition tree display.""" # pylint: disable=too-few-public-methods @@ -120,31 +90,30 @@ class Todo(BaseModel[int], ConditionsRelations): def ensure_children(self, db_conn: DatabaseConnection) -> None: """Ensure Todo children (create or adopt) demanded by Process chain.""" - def key_order_func(n: ProcessStepsNode) -> int: - assert isinstance(n.process.id_, int) - return n.process.id_ - def walk_steps(parent: Todo, step_node: ProcessStepsNode) -> Todo: adoptables = [t for t in Todo.by_date(db_conn, parent.date) if (t not in parent.children) and (t != parent) - and step_node.process == t.process] + and step_node.step.step_process_id == t.process.id_] satisfier = None for adoptable in adoptables: satisfier = adoptable break if not satisfier: - satisfier = Todo(None, step_node.process, False, parent.date) + proc = Process.by_id(db_conn, step_node.step.step_process_id) + satisfier = Todo(None, proc, False, parent.date) satisfier.save(db_conn) - sub_step_nodes = list(step_node.steps.values()) - sub_step_nodes.sort(key=key_order_func) + sub_step_nodes = sorted(step_node.steps, + key=lambda s: s.step.step_process_id) for sub_node in sub_step_nodes: if sub_node.is_suppressed: continue n_slots = len([n for n in sub_step_nodes - if n.process == sub_node.process]) + if n.step.step_process_id + == sub_node.step.step_process_id]) filled_slots = len([t for t in satisfier.children - if t.process == sub_node.process]) + if t.process.id_ + == sub_node.step.step_process_id_]) # if we did not newly create satisfier, it may already fill # some step dependencies, so only fill what remains open if n_slots - filled_slots > 0: @@ -154,7 +123,7 @@ class Todo(BaseModel[int], ConditionsRelations): process = Process.by_id(db_conn, self.process_id) steps_tree = process.get_steps(db_conn) - for step_node in steps_tree.values(): + for step_node in steps_tree: if step_node.is_suppressed: continue self.add_child(walk_steps(self, step_node))