diff --git a/models/update.go b/models/update.go
index 41aa98e0a35..789b99e7b24 100644
--- a/models/update.go
+++ b/models/update.go
@@ -15,6 +15,7 @@ import (
 	"code.gitea.io/gitea/modules/log"
 )
 
+// UpdateTask defines an UpdateTask
 type UpdateTask struct {
 	ID          int64  `xorm:"pk autoincr"`
 	UUID        string `xorm:"index"`
@@ -23,6 +24,7 @@ type UpdateTask struct {
 	NewCommitID string
 }
 
+// AddUpdateTask adds an UpdateTask
 func AddUpdateTask(task *UpdateTask) error {
 	_, err := x.Insert(task)
 	return err
@@ -42,6 +44,7 @@ func GetUpdateTaskByUUID(uuid string) (*UpdateTask, error) {
 	return task, nil
 }
 
+// DeleteUpdateTaskByUUID deletes an UpdateTask from the database
 func DeleteUpdateTaskByUUID(uuid string) error {
 	_, err := x.Delete(&UpdateTask{UUID: uuid})
 	return err
@@ -60,6 +63,7 @@ func CommitToPushCommit(commit *git.Commit) *PushCommit {
 	}
 }
 
+// ListToPushCommits transforms a list.List to PushCommits type.
 func ListToPushCommits(l *list.List) *PushCommits {
 	commits := make([]*PushCommit, 0)
 	var actEmail string
@@ -73,6 +77,7 @@ func ListToPushCommits(l *list.List) *PushCommits {
 	return &PushCommits{l.Len(), commits, "", nil}
 }
 
+// PushUpdateOptions defines the push update options
 type PushUpdateOptions struct {
 	PusherID     int64
 	PusherName   string
diff --git a/models/webhook_slack.go b/models/webhook_slack.go
index 9b70b093543..f6b2a70f93a 100644
--- a/models/webhook_slack.go
+++ b/models/webhook_slack.go
@@ -16,6 +16,7 @@ import (
 	"code.gitea.io/gitea/modules/setting"
 )
 
+// SlackMeta contains the slack metdata
 type SlackMeta struct {
 	Channel  string `json:"channel"`
 	Username string `json:"username"`
@@ -23,6 +24,7 @@ type SlackMeta struct {
 	Color    string `json:"color"`
 }
 
+// SlackPayload contains the information about the slack channel
 type SlackPayload struct {
 	Channel     string            `json:"channel"`
 	Text        string            `json:"text"`
@@ -33,6 +35,7 @@ type SlackPayload struct {
 	Attachments []SlackAttachment `json:"attachments"`
 }
 
+// SlackAttachment contains the slack message
 type SlackAttachment struct {
 	Fallback string `json:"fallback"`
 	Color    string `json:"color"`
@@ -40,8 +43,10 @@ type SlackAttachment struct {
 	Text     string `json:"text"`
 }
 
+// SetSecret sets the slack secret
 func (p *SlackPayload) SetSecret(_ string) {}
 
+// JSONPayload Marshals the SlackPayload to json
 func (p *SlackPayload) JSONPayload() ([]byte, error) {
 	data, err := json.MarshalIndent(p, "", "  ")
 	if err != nil {
@@ -50,6 +55,7 @@ func (p *SlackPayload) JSONPayload() ([]byte, error) {
 	return data, nil
 }
 
+// SlackTextFormatter replaces &, <, > with HTML characters
 // see: https://api.slack.com/docs/formatting
 func SlackTextFormatter(s string) string {
 	// replace & < >
@@ -59,6 +65,7 @@ func SlackTextFormatter(s string) string {
 	return s
 }
 
+// SlackShortTextFormatter replaces &, <, > with HTML characters
 func SlackShortTextFormatter(s string) string {
 	s = strings.Split(s, "\n")[0]
 	// replace & < >
@@ -68,6 +75,7 @@ func SlackShortTextFormatter(s string) string {
 	return s
 }
 
+// SlackLinkFormatter creates a link compatablie with slack
 func SlackLinkFormatter(url string, text string) string {
 	return fmt.Sprintf("<%s|%s>", url, SlackTextFormatter(text))
 }
@@ -181,6 +189,7 @@ func getSlackPullRequestPayload(p *api.PullRequestPayload, slack *SlackMeta) (*S
 	}, nil
 }
 
+// GetSlackPayload converts a slack webhook into a SlackPayload
 func GetSlackPayload(p api.Payloader, event HookEventType, meta string) (*SlackPayload, error) {
 	s := new(SlackPayload)