mAi
4202d0465f
Migration 007 introduces the v5 routing primitive: - clamps table (project-scoped, optional frame_id, excalidraw_id). - cable_clamps join (cable_id, clamp_id, ord) with PK on (cable_id, ord) and UNIQUE (cable_id, clamp_id) to block a clamp visiting the same cable twice. Store helpers in internal/db/clamps.go: - CreateClamp / GetClamp / ListClamps / UpdateClamp / DeleteClamp — standard project-scoped CRUD. UpdateClamp uses FrameRef tri-state. - AttachClampToCable — appends or inserts at a given ord. Mid-sequence inserts use a two-pass shift (bump by 10000, settle to ord+1) since SQLite UPDATE doesn't support ORDER BY and a single bulk +1 would collide with the UNIQUE (cable_id, ord) PK. - DetachClampFromCable — removes the row then closes the gap. - ReorderCableClamps — replaces the whole sequence in one tx. - ListClampsForCable / ListCableClamps — read helpers. Snapshot now carries clamps + cable_clamps arrays so the frontend can hydrate everything in one call. Tests cover create / update / cascade-delete / attach (append + insert + duplicate-rejected) / detach (gap closes) / reorder / snapshot.
32 lines
1.4 KiB
SQL
32 lines
1.4 KiB
SQL
-- mCables v5 — cable routing via clamps. See docs/design.md §11.
|
|
--
|
|
-- A clamp is a physical anchor placed on the canvas. A cable's polyline
|
|
-- runs from its `from` endpoint → its clamps in `ord` sequence → its
|
|
-- `to` endpoint. Cables that share an ordered pair of consecutive
|
|
-- clamps are visibly bundled along that segment (computed live by the
|
|
-- frontend; no detection pass).
|
|
|
|
CREATE TABLE clamps (
|
|
id INTEGER PRIMARY KEY,
|
|
project_id INTEGER NOT NULL REFERENCES projects(id) ON DELETE CASCADE,
|
|
x REAL NOT NULL,
|
|
y REAL NOT NULL,
|
|
label TEXT NOT NULL DEFAULT '',
|
|
frame_id INTEGER REFERENCES frames(id) ON DELETE SET NULL,
|
|
excalidraw_id TEXT,
|
|
created_at TEXT NOT NULL DEFAULT (datetime('now')),
|
|
updated_at TEXT NOT NULL DEFAULT (datetime('now')),
|
|
UNIQUE (project_id, excalidraw_id)
|
|
);
|
|
CREATE INDEX clamps_project_idx ON clamps(project_id);
|
|
CREATE INDEX clamps_frame_idx ON clamps(frame_id);
|
|
|
|
CREATE TABLE cable_clamps (
|
|
cable_id INTEGER NOT NULL REFERENCES cables(id) ON DELETE CASCADE,
|
|
clamp_id INTEGER NOT NULL REFERENCES clamps(id) ON DELETE CASCADE,
|
|
ord INTEGER NOT NULL, -- 1-based along from→to
|
|
PRIMARY KEY (cable_id, ord),
|
|
UNIQUE (cable_id, clamp_id)
|
|
);
|
|
CREATE INDEX cable_clamps_clamp_idx ON cable_clamps(clamp_id);
|