add project linking.

api/task.go

@@ -92,6 +92,15 @@ func Task(g *gin.RouterGroup, db database.Database) {
 				return nil, slerrors.NotFound("Destination project")
 			}
 
+			// Delete any links that would have been ran over.
+			err = db.Tasks().DeleteLink(c.Request.Context(), models.TaskLink{
+				TaskID:    task.ID,
+				ProjectID: project.ID,
+			})
+			if err != nil {
+				return nil, slerrors.BadRequest(err.Error())
+			}
+
 			task.ProjectID = project.ID
 		}
 
@@ -111,6 +120,57 @@ func Task(g *gin.RouterGroup, db database.Database) {
 		return task, nil
 	}))
 
+	g.PUT("/:id/link/:project_id", handler("taskLink", func(c *gin.Context) (interface{}, error) {
+		task, err := l.FindTask(c.Request.Context(), c.Param("id"))
+		if err != nil {
+			return nil, err
+		}
+
+		project, err := l.FindProject(c.Request.Context(), c.Param("project_id"))
+		if err != nil {
+			return nil, err
+		}
+
+		if task.ProjectID == project.ID {
+			return nil, slerrors.BadRequest("You cannot link a task within its own project")
+		}
+
+		err = db.Tasks().CreateLink(c.Request.Context(), models.TaskLink{
+			TaskID:    task.ID,
+			ProjectID: project.ID,
+		})
+
+		return &models.TaskLink{
+			TaskID:    task.ID,
+			ProjectID: project.ID,
+		}, nil
+	}))
+
+	g.DELETE("/:id/link/:project_id", handler("taskLink", func(c *gin.Context) (interface{}, error) {
+		task, err := l.FindTask(c.Request.Context(), c.Param("id"))
+		if err != nil {
+			return nil, err
+		}
+
+		project, err := l.FindProject(c.Request.Context(), c.Param("project_id"))
+		if err != nil {
+			return nil, err
+		}
+
+		err = db.Tasks().DeleteLink(c.Request.Context(), models.TaskLink{
+			TaskID:    task.ID,
+			ProjectID: project.ID,
+		})
+		if err != nil {
+			return nil, err
+		}
+
+		return &models.TaskLink{
+			TaskID:    task.ID,
+			ProjectID: project.ID,
+		}, nil
+	}))
+
 	g.DELETE("/:id", handler("task", func(c *gin.Context) (interface{}, error) {
 		task, err := l.FindTask(c.Request.Context(), c.Param("id"))
 		if err != nil {

database/postgres/project.go

@@ -105,5 +105,10 @@ func (r *projectRepository) Delete(ctx context.Context, project models.Project)
 		return err
 	}
 
+	_, err = r.db.ExecContext(ctx, `DELETE FROM task_link WHERE project_id=$1`, project.ID)
+	if err != nil && err != sql.ErrNoRows {
+		return err
+	}
+
 	return nil
 }

database/postgres/tasks.go

@@ -28,7 +28,17 @@ func (r *taskRepository) Find(ctx context.Context, id string) (*models.Task, err
 }
 
 func (r *taskRepository) List(ctx context.Context, filter models.TaskFilter) ([]*models.Task, error) {
-	sq := squirrel.Select("task.*", "p.icon").From("task").PlaceholderFormat(squirrel.Dollar)
+	tasks, _, err := r.ListWithLinks(ctx, filter)
+	return tasks, err
+}
+
+func (r *taskRepository) ListWithLinks(ctx context.Context, filter models.TaskFilter) ([]*models.Task, []*models.TaskLink, error) {
+	type tasksWithLinks struct {
+		models.Task
+		LinkedProjectID *string `db:"tl_project_id"`
+	}
+
+	sq := squirrel.Select("task.*", "tl.project_id as tl_project_id", "p.icon").From("task").PlaceholderFormat(squirrel.Dollar)
 	sq = sq.Where(squirrel.Eq{"task.user_id": filter.UserID})
 	if filter.Active != nil {
 		sq = sq.Where(squirrel.Eq{"task.active": *filter.Active})
@@ -47,7 +57,12 @@ func (r *taskRepository) List(ctx context.Context, filter models.TaskFilter) ([]
 		sq = sq.Where(squirrel.Eq{"task.item_id": filter.ItemIDs})
 	}
 	if filter.ProjectIDs != nil {
-		sq = sq.Where(squirrel.Eq{"task.project_id": filter.ProjectIDs})
+		sq = sq.LeftJoin("task_link AS tl ON task.task_id = tl.task_id")
+
+		sq = sq.Where(squirrel.Or{
+			squirrel.Eq{"task.project_id": filter.ProjectIDs},
+			squirrel.Eq{"tl.project_id": filter.ProjectIDs},
+		})
 	}
 
 	sq = sq.InnerJoin("project AS p ON task.project_id = p.project_id")
@@ -55,19 +70,37 @@ func (r *taskRepository) List(ctx context.Context, filter models.TaskFilter) ([]
 
 	query, args, err := sq.ToSql()
 	if err != nil {
-		return nil, err
+		return nil, nil, err
 	}
 
-	res := make([]*models.Task, 0, 8)
-	err = r.db.SelectContext(ctx, &res, query, args...)
+	rows := make([]tasksWithLinks, 0, 8)
+	err = r.db.SelectContext(ctx, &rows, query, args...)
 	if err != nil {
 		if err == sql.ErrNoRows {
-			return res, nil
+			return []*models.Task{}, []*models.TaskLink{}, nil
 		}
-		return nil, err
+		return nil, nil, err
 	}
 
-	return res, nil
+	added := make(map[string]bool)
+	tasks := make([]*models.Task, 0, len(rows))
+	links := make([]*models.TaskLink, 0, len(rows))
+	for _, row := range rows {
+		if row.LinkedProjectID != nil {
+			links = append(links, &models.TaskLink{
+				TaskID:    row.Task.ID,
+				ProjectID: *row.LinkedProjectID,
+			})
+		}
+
+		if !added[row.Task.ID] {
+			task := row.Task
+			tasks = append(tasks, &task)
+			added[row.Task.ID] = true
+		}
+	}
+
+	return tasks, links, nil
 }
 
 func (r *taskRepository) Insert(ctx context.Context, task models.Task) error {
@@ -110,6 +143,48 @@ func (r *taskRepository) Update(ctx context.Context, task models.Task) error {
 	return nil
 }
 
+func (r *taskRepository) CreateLink(ctx context.Context, link models.TaskLink) error {
+	_, err := r.db.NamedExecContext(ctx, `
+		INSERT INTO task_link (project_id, task_id) VALUES (:project_id, :task_id)
+		ON CONFLICT DO NOTHING
+	`, &link)
+
+	return err
+}
+
+func (r *taskRepository) DeleteLink(ctx context.Context, link models.TaskLink) error {
+	_, err := r.db.NamedExecContext(ctx, `
+		DELETE FROM task_link WHERE task_id=:task_id AND project_id=:project_id
+	`, &link)
+	if err == sql.ErrNoRows {
+		err = slerrors.NotFound("Link")
+	}
+
+	return err
+}
+
+func (r *taskRepository) UnlinkTask(ctx context.Context, task models.Task) error {
+	_, err := r.db.ExecContext(ctx, `
+		DELETE FROM task_link WHERE task_id=$1;
+	`, task.ID)
+	if err == sql.ErrNoRows {
+		err = nil
+	}
+
+	return err
+}
+
+func (r *taskRepository) UnlinkProject(ctx context.Context, project models.Project) error {
+	_, err := r.db.ExecContext(ctx, `
+		DELETE FROM task_link WHERE task_id=$1;
+	`, project.ID)
+	if err == sql.ErrNoRows {
+		err = nil
+	}
+
+	return err
+}
+
 func (r *taskRepository) Delete(ctx context.Context, task models.Task) error {
 	_, err := r.db.ExecContext(ctx, `DELETE FROM task WHERE task_id=$1`, task.ID)
 	if err != nil {
@@ -119,5 +194,10 @@ func (r *taskRepository) Delete(ctx context.Context, task models.Task) error {
 		return err
 	}
 
+	_, err = r.db.ExecContext(ctx, `DELETE FROM task_link WHERE task_id=$1`, task.ID)
+	if err != nil && err != sql.ErrNoRows {
+		return err
+	}
+
 	return nil
 }

migrations/postgres/20210403142913_create_table_task_link.sql

@@ -0,0 +1,15 @@
+-- +goose Up
+-- +goose StatementBegin
+CREATE TABLE task_link (
+    project_id CHAR(16) NOT NULL,
+    task_id CHAR(16) NOT NULL,
+
+    PRIMARY KEY (project_id, task_id),
+    UNIQUE (task_id, project_id)
+);
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+DROP TABLE task_link;
+-- +goose StatementEnd

models/task.go

@@ -67,6 +67,11 @@ type TaskUpdate struct {
 	ProjectID      *string    `json:"projectId"`
 }
 
+type TaskLink struct {
+	TaskID    string `json:"taskId" db:"task_id"`
+	ProjectID string `json:"projectId" db:"project_id"`
+}
+
 type TaskResult struct {
 	Task
 	Item            *Item    `json:"item"`
@@ -87,7 +92,12 @@ type TaskFilter struct {
 type TaskRepository interface {
 	Find(ctx context.Context, id string) (*Task, error)
 	List(ctx context.Context, filter TaskFilter) ([]*Task, error)
+	ListWithLinks(ctx context.Context, filter TaskFilter) ([]*Task, []*TaskLink, error)
 	Insert(ctx context.Context, task Task) error
 	Update(ctx context.Context, task Task) error
+	CreateLink(ctx context.Context, link TaskLink) error
+	DeleteLink(ctx context.Context, link TaskLink) error
+	UnlinkTask(ctx context.Context, task Task) error
+	UnlinkProject(ctx context.Context, project Project) error
 	Delete(ctx context.Context, task Task) error
 }

services/loader.go

@@ -265,7 +265,7 @@ func (l *Loader) ListProjects(ctx context.Context, filter models.ProjectFilter)
 		projectIDs = append(projectIDs, project.ID)
 	}
 
-	tasks, err := l.DB.Tasks().List(ctx, models.TaskFilter{
+	tasks, links, err := l.DB.Tasks().ListWithLinks(ctx, models.TaskFilter{
 		UserID:     auth.UserID(ctx),
 		ProjectIDs: projectIDs,
 	})
@@ -301,8 +301,19 @@ func (l *Loader) ListProjects(ctx context.Context, filter models.ProjectFilter)
 		results[i].Tasks = make([]*models.TaskResult, 0, 16)
 		for _, task := range tasks {
 			if task.ProjectID != project.ID {
+				foundLink := false
+
+				for _, link := range links {
+					if link.TaskID == task.ID && link.ProjectID == project.ID {
+						foundLink = true
+						break
+					}
+				}
+
+				if !foundLink {
 					continue
 				}
+			}
 
 			taskResult := &models.TaskResult{
 				Task: *task,

svelte-ui/src/App.svelte

@@ -19,6 +19,7 @@
 	import ProjectForm from "./forms/ProjectForm.svelte";
 	import ItemForm from "./forms/ItemForm.svelte";
 	import TaskForm from "./forms/TaskForm.svelte";
+	import TaskLinkForm from "./forms/TaskLinkForm.svelte";
 	import LoginForm from "./forms/LoginForm.svelte";
 
 	import ModalRoute from "./components/ModalRoute.svelte";
@@ -71,6 +72,8 @@
 		<ModalRoute name="goal.add"> <GoalForm creation /></ModalRoute>
 		<ModalRoute name="goal.edit"> <GoalForm /></ModalRoute>
 		<ModalRoute name="goal.delete"> <GoalForm deletion /></ModalRoute>
+		<ModalRoute name="tasklink.add"> <TaskLinkForm creation /></ModalRoute>
+		<ModalRoute name="tasklink.delete"> <TaskLinkForm deletion /></ModalRoute>
 	{:else}
 		<LoginForm />
 	{/if}

svelte-ui/src/clients/stufflog.ts

@@ -1,7 +1,7 @@
 import { getJwt } from "./amplify";
 import type { GoalFilter, GoalInput, GoalResult, GoalUpdate } from "../models/goal";
 import type { ProjectFilter, ProjectInput, ProjectResult, ProjectUpdate } from "../models/project";
-import type { TaskFilter, TaskInput, TaskResult, TaskUpdate } from "../models/task";
+import type { TaskFilter, TaskInput, TaskLink, TaskResult, TaskUpdate } from "../models/task";
 import type { LogFilter, LogInput, LogResult, LogUpdate } from "../models/log";
 import type { GroupInput, GroupResult, GroupUpdate } from "../models/group";
 import type { ItemInput, ItemResult, ItemUpdate } from "../models/item";
@@ -132,6 +132,18 @@ export class StufflogClient {
 
 
 
+  async createTaskLink(projectId: string, taskId: string): Promise<TaskLink> {
+    const data = await this.fetch("PUT", `/api/task/${taskId}/link/${projectId}`);
+    return data.taskLink;
+  }
+
+  async deleteTaskLink(projectId: string, taskId: string): Promise<TaskLink> {
+    const data = await this.fetch("DELETE", `/api/task/${taskId}/link/${projectId}`);
+    return data.taskLink;
+  }
+  
+
+
   async findTask(id: string): Promise<TaskResult> {
     const data = await this.fetch("GET", `/api/task/${id}`);
     return data.task;

svelte-ui/src/components/ProgressNumbers.svelte

@@ -50,7 +50,6 @@
       const boatTarget = Math.ceil(timeProgress * progressTarget);
       
       boat = progressAmount - boatTarget;
-      console.log(progressTarget, boatTarget);
     } else {
       boat = null;
     }
@@ -67,10 +66,6 @@
       }
     }
   }
-
-  $: {
-    console.log(boat);
-  }
 </script>
 
 <div class="progress">

svelte-ui/src/components/ProjectEntry.svelte

@@ -26,6 +26,7 @@ import stuffLogClient from "../clients/stufflog";
   let mdAddTask: ModalData;
   let mdProjectEdit: ModalData;
   let mdProjectDelete: ModalData;
+  let mdLinkTask: ModalData;
   let linkTarget: string = "";
   let activeTasks: TaskResult[] = [];
   let inactiveTasks: TaskResult[] = [];
@@ -73,6 +74,7 @@ import stuffLogClient from "../clients/stufflog";
   }
 
   $: mdAddTask = {name:"task.add", project};
+  $: mdLinkTask = {name:"tasklink.add", project};
   $: mdProjectEdit = {name:"project.edit", project};
   $: mdProjectDelete = {name:"project.delete", project};
 
@@ -114,6 +116,7 @@ import stuffLogClient from "../clients/stufflog";
     {#if showAllOptions}
       <OptionRow>
         <Option open={mdAddTask}>Add Task</Option>
+        <Option open={mdLinkTask}>Link Task</Option>
         <Option open={mdProjectEdit}>Edit</Option>
         <Option open={mdProjectDelete}>Delete</Option>
         {#if canComplete}

svelte-ui/src/components/ProjectSelect.svelte

@@ -14,12 +14,6 @@
   
   let optGroups: OptGroup[]
 
-  $: {
-    if ($projectStore.stale && !$projectStore.loading) {
-      projectStore.load({});
-    }
-  }
-
   $: {
     optGroups = [
       {
@@ -42,6 +36,14 @@
         status: "Completed",
         projects: $projectStore.projects.filter(p => !p.active && p.statusTag === "completed")
       },
+      {
+        status: "Background",
+        projects: $projectStore.projects.filter(p => !p.active && p.statusTag === "background")
+      },
+      {
+        status: "Progress",
+        projects: $projectStore.projects.filter(p => !p.active && p.statusTag === "progress")
+      },
       {
         status: "Failed",
         projects: $projectStore.projects.filter(p => !p.active && p.statusTag === "failed")

svelte-ui/src/components/TaskEntry.svelte

@@ -1,5 +1,5 @@
 <script lang="ts">
-import { tick } from "svelte";
+  import { tick } from "svelte";
 
   import stuffLogClient from "../clients/stufflog";
   import type Project from "../models/project";
@@ -23,7 +23,9 @@ import { tick } from "svelte";
   let mdLogAdd: ModalData;
   let mdTaskEdit: ModalData;
   let mdTaskDelete: ModalData;
+  let mdTaskUnlink: ModalData;
   let isMoving = false;
+  let isLinked = false;
 
   function toggleShowLogs() {
     showLogs = !showLogs;
@@ -66,6 +68,8 @@ import { tick } from "svelte";
   $: mdLogAdd = {name: "log.add", task: {...task, project}};
   $: mdTaskEdit = {name: "task.edit", task: {...task, project}};
   $: mdTaskDelete = {name: "task.delete", task: {...task, project}};
+  $: mdTaskUnlink = {name: "tasklink.delete", task, project};
+  $: isLinked = task.projectId !== project.id;
 </script>
 
 <StatusColor affects="task" entry={task}>
@@ -81,6 +85,9 @@ import { tick } from "svelte";
       <Option open={mdLogAdd}>Add Log</Option>
       {#if showAllOptions}
         <Option open={mdTaskEdit}>Edit</Option>
+        {#if isLinked}
+          <Option open={mdTaskUnlink}>Unlink</Option>
+        {:else}
           <Option open={mdTaskDelete}>Delete</Option>
           ·
           {#if !isMoving && (!task.active) }
@@ -102,6 +109,7 @@ import { tick } from "svelte";
             <Option color="red" on:click={moveToFailed}>Failed</Option>
           {/if}
         {/if}
+      {/if}
     </OptionRow>
     {#if showLogs && task.logs.length > 0}
       <div class="log-list">

svelte-ui/src/components/TaskSelect.svelte

@@ -0,0 +1,36 @@
+<script lang="ts">
+  import projectStore from "../stores/project";
+
+  export let value = "";
+  export let name = "";
+  export let disabled = false;
+  export let optional = false;
+
+  $: {
+    if ($projectStore.stale && !$projectStore.loading) {
+      projectStore.load({});
+    }
+  }
+
+  $: {
+    if ($projectStore.projects.length > 0 && value === "" && !optional) {
+      const nonEmpty = $projectStore.projects.find(g => g.tasks.length > 0);
+      if (nonEmpty != null) {
+        value = nonEmpty.tasks[0].id;
+      }
+    }
+  }
+</script>
+
+<select name={name} bind:value={value} disabled={disabled || $projectStore.loading}>
+  {#if optional}
+    <option value={""} selected={"" === value}>None</option>
+  {/if}
+  {#each $projectStore.projects as project (project.id)}
+    <optgroup label={project.name}>
+      {#each project.tasks as task (task.id)}
+        <option value={task.id} selected={task.id === value}>{task.name}</option>
+      {/each}
+    </optgroup>
+  {/each}
+</select>

svelte-ui/src/forms/TaskLinkForm.svelte

@@ -0,0 +1,69 @@
+<script lang="ts">
+  import stuffLogClient from "../clients/stufflog";
+  import Modal from "../components/Modal.svelte";
+  import ProjectSelect from "../components/ProjectSelect.svelte";
+  import TaskSelect from "../components/TaskSelect.svelte";
+  import markStale from "../stores/markStale";
+  import modalStore from "../stores/modal";
+
+  export let deletion = false;
+  export let creation = false;
+
+  const md = $modalStore;
+
+  let projectId = "";
+  let taskId = "";
+  let verb = "Add";
+
+  if (md.name === "tasklink.delete") {
+    projectId = md.project.id;
+    taskId = md.task.id;
+    verb = "Delete";
+  } else if (md.name === "tasklink.add") {
+    projectId = (md.project||{id:""}).id;
+    taskId = (md.task||{id:""}).id;
+  } else {
+    throw new Error(`Wrong form ${md.name}`)
+  }
+
+  let error = null;
+  let loading = false;
+
+  function onSubmit() {
+    loading = true;
+    error = null;
+
+    if (creation) {
+      stuffLogClient.createTaskLink(projectId, taskId).then(() => {
+        markStale("goal", "project");
+        modalStore.close();
+      }).catch(err => {
+        error = err.message ? err.message : err.toString();
+      }).finally(() => {
+        loading = false;
+      })
+    } else if (deletion) {
+      stuffLogClient.deleteTaskLink(projectId, taskId).then(() => {
+        markStale("goal", "project");
+        modalStore.close();
+      }).catch(err => {
+        error = err.message ? err.message : err.toString();
+      }).finally(() => {
+        loading = false;
+      })
+    }
+  }
+</script>
+
+<Modal show title="{verb} Link" error={error} closable on:close={modalStore.close}>
+  <form on:submit|preventDefault={onSubmit}>
+    <label for="taskId">Source Task</label>
+    <TaskSelect disabled={deletion} name="taskId" bind:value={taskId} />
+    <label for="projectId">Destination Project</label>
+    <ProjectSelect disabled={deletion} name="projectId" bind:value={projectId} />
+
+    <hr />
+
+    <button disabled={loading} type="submit">{verb} Link</button>
+  </form>
+</Modal>

svelte-ui/src/models/task.ts

@@ -23,6 +23,12 @@ export interface TaskResult extends Task {
   project?: Project
 }
 
+// TaskLink is only returned by the API. The tasks are returned transparently.
+export interface TaskLink {
+  taskId: string
+  projectId: string
+}
+
 export interface TaskFilter {
   active?: boolean
   expiring?: boolean

svelte-ui/src/pages/QLPage.svelte

@@ -4,7 +4,7 @@
   import projectStore from "../stores/project";
 
   $: {
-    if (($projectStore.stale || $projectStore.filter.active != null) && !$projectStore.loading) {
+    if ($projectStore.stale && !$projectStore.loading) {
       projectStore.load({});
     }
   }

svelte-ui/src/stores/modal.ts

@@ -3,8 +3,10 @@ import type { GoalResult } from "../models/goal";
 import type { GroupResult } from "../models/group";
 import type { ItemResult } from "../models/item";
 import type { LogResult } from "../models/log";
-import type { ProjectResult } from "../models/project";
-import type { TaskResult } from "../models/task";
+import type {ProjectResult} from "../models/project";
+import type {TaskResult} from "../models/task";
+import type Project from "../models/project";
+import type Task from "../models/task";
 
 export type ModalData =
   | { name: "none" }
@@ -26,6 +28,8 @@ export type ModalData =
   | { name: "goal.add" }
   | { name: "goal.edit", goal: GoalResult }
   | { name: "goal.delete", goal: GoalResult }
+  | { name: "tasklink.add", project?: Project, task?: Task }
+  | { name: "tasklink.delete", project: Project, task: Task }
 
 function createModalStore() {
   const {set, subscribe} = writable<ModalData>({name: "none"});