add viewmodel for article

internal/model/article.go

@@ -1,33 +0,0 @@
-package model
-
-import (
-    "time"
-    "crypto/sha256"
-    "encoding/hex"
-)
-
-// TODO docstring
-type Article struct {
-    SourceUrl   string
-    PublishDate time.Time
-    FetchDate   time.Time
-    Title       string
-    Content     string
-    Author      string
-}
-
-
-// Generates a hash based on the source url of the article. Can be used to
-// identify the article.
-func (article *Article) Hash() string {
-    hash := sha256.Sum256([]byte(article.SourceUrl))
-    return hex.EncodeToString(hash[:])
-}
-
-
-// --- implement IIdentifiable interface ---
-
-// Using the Identifier attribute as the Id.
-func (article *Article) Id() string {
-    return article.Hash()
-}