[WIP] migration to psql

TODO:
[ ] stats
[ ] indexes

lib/database/news.go

@@ -1,49 +1,30 @@
 package database
 
 import (
-	log "github.com/cihub/seelog"
-
 	"time"
-
-	"gopkg.in/mgo.v2"
-	"gopkg.in/mgo.v2/bson"
 )
 
-const (
-	news_coll = "news"
-)
-
-type News struct {
+// New entry in the news table
+type New struct {
+	ID   int
 	Date time.Time
 	Text string
 }
 
-func indexNews(coll *mgo.Collection) {
-	idx := mgo.Index{
-		Key:        []string{"-date"},
-		Background: true,
-	}
-	err := coll.EnsureIndex(idx)
-	if err != nil {
-		log.Error("Error indexing news: ", err)
-	}
+// AddNews creates a new entry
+func (db *pgDB) AddNews(text string) error {
+	return db.sql.Create(&New{
+		Text: text,
+		Date: time.Now(),
+	})
 }
 
-func addNews(coll *mgo.Collection, text string) error {
-	var news News
-	news.Text = text
-	news.Date = time.Now()
-	return coll.Insert(news)
-}
-
-func getNews(coll *mgo.Collection, num int, days int) (news []News, err error) {
-	query := bson.M{}
-	if days != 0 {
-		duration := time.Duration(-24*days) * time.Hour
-		date := time.Now().Add(duration)
-		query = bson.M{"date": bson.M{"$gt": date}}
-	}
-	q := coll.Find(query).Sort("-date").Limit(num)
-	err = q.All(&news)
-	return
+// GetNews returns all the news for the last 'days' limiting with a maximum of 'num' results
+func (db *pgDB) GetNews(num int, days int) ([]New, error) {
+	var news []New
+	err := db.sql.Model(&news).
+		Limit(num).
+		Order("date DESC").
+		Select()
+	return news, err
 }