1 files changed, 60 insertions, 0 deletions
diff --git a/app/utils/static/next-prev-links.js b/app/utils/static/next-prev-links.js
new file mode 100644
index 0000000..dddc879
--- /dev/null
+++ b/app/utils/static/next-prev-links.js
@@ -0,0 +1,60 @@
+function build_next_prev() {
+
+    var url = window.location.href 
+    var cur = Number(url.split('/')[6]);
+    var app = url.split('/')[4];
+    var model = url.split('/')[5];
+    if (cur) {
+        var style = document.createElement('style');
+        style.type = 'text/css';
+        style.innerHTML = '.np-container {padding-left: 0;} .prev, .next {display: inline-block; margin-right: .5em;} .prev:after { content: "|"; margin-left:.5em;} .prev a:before {content: "\u00AB"; margin-right: 3px;} .next a:after{content: "\u00BB"; margin-left: 3px;}';
+        document.getElementsByTagName('head')[0].appendChild(style);
+
+        json_url = '/admin/data/'+app+'/'+model+'/'+cur+'/';
+        //console.log(json_url);
+
+        var container = document.createElement("ul");
+        var next_li = document.createElement("li");
+        var next_link = document.createElement("a");
+        var prev_li = document.createElement("li");
+        var prev_link = document.createElement("a");
+        prev_li.className = "prev";
+        next_li.className = "next";
+        container.className = "np-container";
+        next_link.textContent = "Next";
+        prev_link.textContent = "Prev";
+
+        var request = new XMLHttpRequest();
+        request.open('GET', json_url, true);
+        request.onload = function() {
+            if (request.status >= 200 && request.status < 400) {
+                var data = JSON.parse(request.responseText);
+                next_link.href = data['next'];
+                prev_link.href = data['prev'];
+                if (data['next'] != '') {
+                    next_li.appendChild(next_link);
+                }
+                if (data['prev']) {
+                    prev_li.appendChild(prev_link);
+                }
+            } else {
+                console.log("server error");
+            }
+        };
+        request.onerror = function() {
+            console.log("error on request");
+        };
+        request.send();
+        container.appendChild(prev_li);
+        container.appendChild(next_li);
+        //console.log(container);
+        Array.from(document.getElementsByClassName('object-tools')).forEach(function(item) {
+            item.parentNode.insertBefore(container, item.nextSibling);
+        })
+    } else {
+        return;
+    }
+};
+document.addEventListener("DOMContentLoaded", function(event) { 
+    build_next_prev();
+});