vikunja-api/pkg/models/list_tasks.go

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// Vikunja is a todo-list application to facilitate your life.
// Copyright 2018 Vikunja and contributors. All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package models
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import (
"code.vikunja.io/web"
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"sort"
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)
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// ListTask represents an task in a todolist
type ListTask struct {
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ID int64 `xorm:"int(11) autoincr not null unique pk" json:"id" param:"listtask"`
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Text string `xorm:"varchar(250)" json:"text" valid:"runelength(3|250)"`
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Description string `xorm:"varchar(250)" json:"description" valid:"runelength(0|250)"`
Done bool `xorm:"INDEX" json:"done"`
DueDateUnix int64 `xorm:"int(11) INDEX" json:"dueDate"`
RemindersUnix []int64 `xorm:"JSON TEXT" json:"reminderDates"`
CreatedByID int64 `xorm:"int(11)" json:"-"` // ID of the user who put that task on the list
ListID int64 `xorm:"int(11) INDEX" json:"listID" param:"list"`
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RepeatAfter int64 `xorm:"int(11) INDEX" json:"repeatAfter"`
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ParentTaskID int64 `xorm:"int(11) INDEX" json:"parentTaskID"`
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Priority int64 `xorm:"int(11)" json:"priority"`
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StartDateUnix int64 `xorm:"int(11) INDEX" json:"startDate"`
EndDateUnix int64 `xorm:"int(11) INDEX" json:"endDate"`
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Sorting string `xorm:"-" json:"-" param:"sort"` // Parameter to sort by
StartDateSortUnix int64 `xorm:"-" json:"-" param:"startdatefilter"`
EndDateSortUnix int64 `xorm:"-" json:"-" param:"enddatefilter"`
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Subtasks []*ListTask `xorm:"-" json:"subtasks"`
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Created int64 `xorm:"created" json:"created"`
Updated int64 `xorm:"updated" json:"updated"`
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CreatedBy User `xorm:"-" json:"createdBy" valid:"-"`
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web.CRUDable `xorm:"-" json:"-"`
web.Rights `xorm:"-" json:"-"`
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}
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// TableName returns the table name for listtasks
func (ListTask) TableName() string {
return "tasks"
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}
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// GetTasksByListID gets all todotasks for a list
func GetTasksByListID(listID int64) (tasks []*ListTask, err error) {
err = x.Where("list_id = ?", listID).Find(&tasks)
if err != nil {
return
}
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// No need to iterate over users if the list doesn't has tasks
if len(tasks) == 0 {
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return
}
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// make a map so we can put in subtasks more easily
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taskMap := make(map[int64]*ListTask, len(tasks))
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// Get all users and put them into the array
var userIDs []int64
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for _, i := range tasks {
found := false
for _, u := range userIDs {
if i.CreatedByID == u {
found = true
break
}
}
if !found {
userIDs = append(userIDs, i.CreatedByID)
}
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taskMap[i.ID] = i
}
var users []User
err = x.In("id", userIDs).Find(&users)
if err != nil {
return
}
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// Add all user objects to the appropriate tasks
for _, task := range taskMap {
// Make created by user objects
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for _, u := range users {
if task.CreatedByID == u.ID {
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taskMap[task.ID].CreatedBy = u
break
}
}
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// Reorder all subtasks
if task.ParentTaskID != 0 {
taskMap[task.ParentTaskID].Subtasks = append(taskMap[task.ParentTaskID].Subtasks, task)
delete(taskMap, task.ID)
}
}
// make a complete slice from the map
tasks = []*ListTask{}
for _, t := range taskMap {
tasks = append(tasks, t)
}
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// Sort the output. In Go, contents on a map are put on that map in no particular order.
// Because of this, tasks are not sorted anymore in the output, this leads to confiusion.
// To avoid all this, we need to sort the slice afterwards
sort.Slice(tasks, func(i, j int) bool {
return tasks[i].ID < tasks[j].ID
})
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return
}
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// GetListTaskByID returns all tasks a list has
func GetListTaskByID(listTaskID int64) (listTask ListTask, err error) {
if listTaskID < 1 {
return ListTask{}, ErrListTaskDoesNotExist{listTaskID}
}
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exists, err := x.ID(listTaskID).Get(&listTask)
if err != nil {
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return ListTask{}, err
}
if !exists {
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return ListTask{}, ErrListTaskDoesNotExist{listTaskID}
}
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u, err := GetUserByID(listTask.CreatedByID)
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if err != nil {
return
}
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listTask.CreatedBy = u
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return
}