Add view and click counts to campaign API response and UI

frontend/my/src/Campaigns.js

@@ -225,8 +225,8 @@ class Campaigns extends React.PureComponent {
                     <Row><Col className="label" span={10}>Rate</Col><Col span={12}>{ Math.round(rate, 2) } / min</Col></Row>
                 }
 
-                <Row><Col className="label" span={10}>Views</Col><Col span={12}>0</Col></Row>
-                <Row><Col className="label" span={10}>Clicks</Col><Col span={12}>0</Col></Row>
+                <Row><Col className="label" span={10}>Views</Col><Col span={12}>{ record.views }</Col></Row>
+                <Row><Col className="label" span={10}>Clicks</Col><Col span={12}>{ record.clicks }</Col></Row>
                 <br />
                 <Row><Col className="label" span={10}>Created</Col><Col span={12}>{ dayjs(record.created_at).format(cs.DateFormat) }</Col></Row>
 

models/models.go

@@ -136,6 +136,8 @@ type Campaign struct {
 	MessengerID string         `db:"messenger" json:"messenger"`
 	Lists       types.JSONText `json:"lists"`
 
+	View   int `db:"views" json:"views"`
+	Clicks int `db:"clicks" json:"clicks"`
 	// TemplateBody is joined in from templates by the next-campaigns query.
 	TemplateBody string             `db:"template_body" json:"-"`
 	Tpl          *template.Template `json:"-"`

queries.sql

@@ -255,7 +255,7 @@ INSERT INTO campaign_lists (campaign_id, list_id, list_name)
 -- name: get-campaigns
 -- Here, 'lists' is returned as an aggregated JSON array from campaign_lists because
 -- the list reference may have been deleted.
-SELECT campaigns.*, (
+SELECT campaigns.*, COUNT(campaign_views.campaign_id) AS views, COUNT(link_clicks.campaign_id) AS clicks, (
 	SELECT COALESCE(ARRAY_TO_JSON(ARRAY_AGG(l)), '[]') FROM (
 		SELECT COALESCE(campaign_lists.list_id, 0) AS id,
         campaign_lists.list_name AS name
@@ -263,7 +263,10 @@ SELECT campaigns.*, (
 	) l
 ) AS lists
 FROM campaigns
+LEFT JOIN campaign_views ON (campaign_views.campaign_id = campaigns.id)
+LEFT JOIN link_clicks ON (link_clicks.campaign_id = campaigns.id)
 WHERE ($1 = 0 OR id = $1) AND status=(CASE WHEN $2 != '' THEN $2::campaign_status ELSE status END)
+GROUP BY campaigns.id
 ORDER BY created_at DESC OFFSET $3 LIMIT $4;
 
 -- name: get-campaign-for-preview