Added group-membership solution

group-membership/README.md

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+# Group Membership

group-membership/src/group-membership.js

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+/*
+1) Resources -> Advanced Google Services...
+    Admin Directory API
+    Google Sheets API
+2) Paste your Google Doc IDs below
+
+TODO:group used [email protected], change body
+3) 
+*/
+
+var addedToGroupSubject = 'Added to group';
+var addedToGroupDocId = '1umU1M67IKdvdf6UpKsGpcxhTJc_78hrlRU7OtXviCtU';
+
+var alreadyInGroupSubject = 'Already in group';
+var alreadyInGroupDocId = '16U9nddvplFHOFLmEawt8Kxzf7Vtplntlty0S0C9mePQ';
+
+// Reviews each row upon submission from form.
+function onFormSubmit() {
+  var sheet = SpreadsheetApp.getActiveSheet();
+  var rows = sheet.getDataRange().getValues();
+  var headers = sheet.getRange(1, 1, 1, sheet.getLastColumn()).getValues()[0];
+
+  // ObjApp library uses the rangeToObjects() method to create a list of
+  // objects from the spreadsheet's rows.
+  // Each row is converted into an object, which we will refer to as `user`.
+  var users = ObjApp.rangeToObjects(rows);
+  for (var i in users) {
+    // `user` includes all the fields in a row as an object.
+    var user = users[i];
+
+    // If we make any changes to `user`, we want to keep track that there
+    // were changes so we can mirror those changes in the spreadsheet.
+    var rowUpdated = false;
+
+    // Check if the group contains the user's email.
+    var group = GroupsApp.getGroupByEmail(user.googleGroup);
+    if (group.hasUser(user.email)) {
+      // User is already in group, send a confirmation email.
+      var emailBody = docToHtml(alreadyInGroupDocId);
+      emailBody = emailBody.replace('{{EMAIL}}', user.email);
+      MailApp.sendEmail({
+        to: user.email,
+        subject: alreadyInGroupSubject,
+        htmlBody: emailBody,
+      });
+
+      // If the membership status is blank, means the user was already added.
+      if (!user.membershipStatus) {
+        user.membershipStatus = 'ALREADY ADDED';
+        rowUpdated = true;
+      }
+    }
+    else {
+      // User is not part of the group, add user to group.
+      var member = {email: user.email, role: 'MEMBER'};
+      AdminDirectory.Members.insert(member, user.googleGroup);
+
+      // Send a confirmation email that the member was now added.
+      var emailBody = docToHtml(addedToGroupDocId);
+      emailBody = emailBody.replace('{{EMAIL}}', user.email);
+      MailApp.sendEmail({
+        to: user.email,
+        subject: addedToGroupSubject,
+        htmlBody: emailBody,
+      });
+
+      // Mark the membership status to the current date.
+      user.membershipStatus = new Date().toString();
+      rowUpdated = true;
+    }
+
+    if (rowUpdated) {
+      // Update the entire row in the sheet with the new `user` values.
+      var userRow = ObjApp.objectToArray(headers, [user]);
+      sheet.getRange(i+2, 1, 1, userRow.length).setValues(userRow);
+    }
+  }
+}
+
+// Fetches a Google Doc as an HTML string for email. 
+function docToHtml(docId) {
+  var url = "https://docs.google.com/feeds/download/documents/export/Export?id="+docId+"&exportFormat=html";
+  var param = {
+    method: "get",
+    headers: {"Authorization": "Bearer " + ScriptApp.getOAuthToken()},
+    muteHttpExceptions: true,
+  };
+  return UrlFetchApp.fetch(url, param).getContentText();
+}