Added backend

backend/api/recent.go

@@ -0,0 +1,44 @@
+package api
+
+import (
+	"TheAdversary/config"
+	"TheAdversary/database"
+	"TheAdversary/schema"
+	"encoding/json"
+	"net/http"
+	"path"
+	"strconv"
+)
+
+func Recent(w http.ResponseWriter, r *http.Request) {
+	query := r.URL.Query()
+	request := database.GetDB().Table("article")
+
+	limit := 20
+	if query.Has("limit") {
+		var err error
+		limit, err = strconv.Atoi(query.Get("limit"))
+		if err != nil {
+			ApiError{"invalid 'limit' parameter", http.StatusUnprocessableEntity}.Send(w)
+			return
+		} else if limit > 100 {
+			ApiError{"'limit' parameter must not be over 100", http.StatusUnprocessableEntity}.Send(w)
+			return
+		}
+	}
+	request.Limit(limit)
+
+	var articleSummaries []schema.ArticleSummary
+	request.Find(&articleSummaries)
+
+	for i, summary := range articleSummaries {
+		database.GetDB().Table("author").Where("id IN (?)", database.GetDB().Table("article_author").Select("author_id").Where("article_id = ?", summary.Id)).Find(&summary.Authors)
+		summary.Tags = []string{}
+		database.GetDB().Table("article_tag").Select("tag").Where("article_id = ?", summary.Id).Find(&summary.Tags)
+		summary.Link = path.Join(config.SubPath, "article", summary.Link)
+		articleSummaries[i] = summary
+	}
+
+	w.WriteHeader(http.StatusOK)
+	json.NewEncoder(w).Encode(articleSummaries)
+}