vikunja-api/pkg/models/list.go

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package models
import "sort"
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// List represents a list of tasks
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type List struct {
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ID int64 `xorm:"int(11) autoincr not null unique pk" json:"id" param:"list"`
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Title string `xorm:"varchar(250)" json:"title"`
Description string `xorm:"varchar(1000)" json:"description"`
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OwnerID int64 `xorm:"int(11) INDEX" json:"-"`
NamespaceID int64 `xorm:"int(11) INDEX" json:"-" param:"namespace"`
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Owner User `xorm:"-" json:"owner"`
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Tasks []*ListTask `xorm:"-" json:"tasks"`
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Created int64 `xorm:"created" json:"created"`
Updated int64 `xorm:"updated" json:"updated"`
CRUDable `xorm:"-" json:"-"`
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Rights `xorm:"-" json:"-"`
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}
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// GetListsByNamespaceID gets all lists in a namespace
func GetListsByNamespaceID(nID int64) (lists []*List, err error) {
err = x.Where("namespace_id = ?", nID).Find(&lists)
return lists, err
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}
// ReadAll gets all lists a user has access to
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func (l *List) ReadAll(u *User) (interface{}, error) {
lists, err := getRawListsForUser(u)
if err != nil {
return nil, err
}
// Add more list details
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AddListDetails(lists)
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return lists, err
}
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// ReadOne gets one list by its ID
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func (l *List) ReadOne() (err error) {
err = l.GetSimpleByID()
if err != nil {
return err
}
// Get list tasks
l.Tasks, err = GetTasksByListID(l.ID)
if err != nil {
return err
}
// Get list owner
l.Owner, err = GetUserByID(l.OwnerID)
return
}
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// GetSimpleByID gets a list with only the basic items, aka no tasks or user objects. Returns an error if the list does not exist.
func (l *List) GetSimpleByID() (err error) {
if l.ID < 1 {
return ErrListDoesNotExist{ID: l.ID}
}
// We need to re-init our list object, because otherwise xorm creates a "where for every item in that list object,
// leading to not finding anything if the id is good, but for example the title is different.
id := l.ID
*l = List{}
exists, err := x.Where("id = ?", id).Get(l)
if err != nil {
return
}
if !exists {
return ErrListDoesNotExist{ID: l.ID}
}
return
}
// Gets the lists only, without any tasks or so
func getRawListsForUser(u *User) (lists []*List, err error) {
fullUser, err := GetUserByID(u.ID)
if err != nil {
return lists, err
}
// Gets all Lists where the user is either owner or in a team which has access to the list
// Or in a team which has namespace read access
err = x.Select("l.*").
Table("list").
Alias("l").
Join("INNER", []string{"namespaces", "n"}, "l.namespace_id = n.id").
Join("LEFT", []string{"team_namespaces", "tn"}, "tn.namespace_id = n.id").
Join("LEFT", []string{"team_members", "tm"}, "tm.team_id = tn.team_id").
Join("LEFT", []string{"team_list", "tl"}, "l.id = tl.list_id").
Join("LEFT", []string{"team_members", "tm2"}, "tm2.team_id = tl.team_id").
Join("LEFT", []string{"users_list", "ul"}, "ul.list_id = l.id").
Join("LEFT", []string{"users_namespace", "un"}, "un.namespace_id = l.namespace_id").
Where("tm.user_id = ?", fullUser.ID).
Or("tm2.user_id = ?", fullUser.ID).
Or("l.owner_id = ?", fullUser.ID).
Or("ul.user_id = ?", fullUser.ID).
Or("un.user_id = ?", fullUser.ID).
GroupBy("l.id").
Find(&lists)
return lists, err
}
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// AddListDetails adds owner user objects and list tasks to all lists in the slice
func AddListDetails(lists []*List) (err error) {
var listIDs []int64
var ownerIDs []int64
for _, l := range lists {
listIDs = append(listIDs, l.ID)
ownerIDs = append(ownerIDs, l.OwnerID)
}
// Get all tasks
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ts := []*ListTask{}
err = x.In("list_id", listIDs).Find(&ts)
if err != nil {
return
}
// Get all list owners
owners := []*User{}
err = x.In("id", ownerIDs).Find(&owners)
if err != nil {
return
}
// Build it all into the lists slice
for in, list := range lists {
// Owner
for _, owner := range owners {
if list.OwnerID == owner.ID {
lists[in].Owner = *owner
break
}
}
// Tasks
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for _, task := range ts {
if task.ListID == list.ID {
lists[in].Tasks = append(lists[in].Tasks, task)
}
}
}
return
}
// ListTasksDummy is a dummy we use to be able to use the crud handler
type ListTasksDummy struct {
CRUDable
Rights
}
// ReadAll gets all tasks for a user
func (lt *ListTasksDummy) ReadAll(u *User) (interface{}, error) {
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return GetTasksByUser(u)
}
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//GetTasksByUser returns all tasks for a user
func GetTasksByUser(u *User) (tasks []*ListTask, err error) {
// Get all lists
lists, err := getRawListsForUser(u)
if err != nil {
return nil, err
}
// Get all list IDs and get the tasks
var listIDs []int64
for _, l := range lists {
listIDs = append(listIDs, l.ID)
}
// Then return all tasks for that lists
if err := x.In("list_id", listIDs).Find(&tasks); err != nil {
return nil, err
}
// Sort it by due date
sort.Slice(tasks, func(i, j int) bool {
return tasks[i].DueDateUnix > tasks[j].DueDateUnix
})
return tasks, err
}