Fix pagination controls, move mixin to common app, fix pagination invocation on all views, and other random bug fixes

staticfiles/admin/fields/keyvalue_field/script.js

@@ -0,0 +1,47 @@
+$(document).ready(function () {
+    let editors = document.getElementsByClassName('keyvalue-json-editor-field')
+    $(editors).each((index, editor) => {
+        let schema_str = JSON.parse(editor.value)
+        $(editor).addClass("hidden")
+        let json_viewer_div = $(`<div class="json-view-editor"></div>`)
+        $(editor).parent().append(json_viewer_div)
+
+        let properties = {
+            key: {type: 'string'},
+            value: {type: 'string'},
+        }
+
+        init(editor, json_viewer_div, properties, schema_str || [])
+
+    })
+})
+
+
+function init(editor, json_viewer_div, properties, start_value = []) {
+    let jsoneditor = new JSONEditor(
+        json_viewer_div[0], {
+            theme: 'bootstrap4',
+            schema: {
+                type: "array",
+                format: 'table',
+                title: ' ',
+                items: {
+                    type: 'object',
+                    title: 'item',
+                    properties: properties
+                },
+            },
+            disable_edit_json: true,
+            disable_properties: false,
+            disable_array_delete_all_rows: true,
+            disable_array_delete_last_row: true,
+            disable_array_reorder: true,
+            grid_columns: 3,
+            prompt_before_delete: false,
+            disable_collapse: true,
+            startval: start_value
+        })
+    jsoneditor.on('change', () => {
+        $(editor).val(JSON.stringify(jsoneditor.getValue()))
+    })
+}