From be1d7e5316871e8c740afc8e2c19dbff4f1eeef8 Mon Sep 17 00:00:00 2001
From: Hongbo Wu <hongbo@omnivore.app>
Date: Tue, 30 May 2023 15:54:54 +0800
Subject: [PATCH] fix: allow adding aliases to the variables in the front
 matter

---
 src/main.ts              |  5 +++--
 src/settings/template.ts | 15 +++++++++------
 2 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/src/main.ts b/src/main.ts
index 1296be4..1060bef 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -486,7 +486,7 @@ class OmnivoreSettingTab extends PluginSettingTab {
     new Setting(containerEl)
       .setName("Front Matter Variables")
       .setDesc(
-        "Enter the front matter variables to be used in the template separated by commas. Available variables are title, author, tags, date_saved, date_published"
+        "Enter the front matter variables to be used in the template separated by commas. Available variables are title, author, tags, date_saved, date_published. You can also use custom aliases in the format of variable::alias, e.g. date_saved::date"
       )
       .addTextArea((text) => {
         text
@@ -499,7 +499,8 @@ class OmnivoreSettingTab extends PluginSettingTab {
               .map((v) => v.trim())
               .filter(
                 (v, i, a) =>
-                  FRONT_MATTER_VARIABLES.includes(v) && a.indexOf(v) === i
+                  FRONT_MATTER_VARIABLES.includes(v.split("::")[0]) &&
+                  a.indexOf(v) === i
               );
             await this.plugin.saveSettings();
           });
diff --git a/src/settings/template.ts b/src/settings/template.ts
index 0610cf5..4998084 100644
--- a/src/settings/template.ts
+++ b/src/settings/template.ts
@@ -246,27 +246,30 @@ export const renderArticleContnet = async (
   };
 
   for (const item of frontMatterVariables) {
-    switch (item) {
+    const aliasedVariables = item.split("::");
+    const variable = aliasedVariables[0];
+    const key = aliasedVariables[1] || variable;
+    switch (variable) {
       case "title":
-        frontMatter[item] = articleView.title;
+        frontMatter[key] = articleView.title;
         break;
       case "author":
         if (articleView.author) {
-          frontMatter[item] = articleView.author;
+          frontMatter[key] = articleView.author;
         }
         break;
       case "tags":
         if (articleView.labels && articleView.labels.length > 0) {
           // use label names as tags
-          frontMatter[item] = articleView.labels.map((l) => l.name);
+          frontMatter[key] = articleView.labels.map((l) => l.name);
         }
         break;
       case "date_saved":
-        frontMatter[item] = dateSaved;
+        frontMatter[key] = dateSaved;
         break;
       case "date_published":
         if (datePublished) {
-          frontMatter[item] = datePublished;
+          frontMatter[key] = datePublished;
         }
         break;
     }