From 12bb498d52c38157fa5252a17233d8e40652c48c Mon Sep 17 00:00:00 2001
From: Rufus Pollock <rufus.pollock@okfn.org>
Date: Wed, 22 Feb 2012 22:02:38 +0000
Subject: [PATCH] [#53,view/query][s]: start on a query editor by factoring out
 current size/offset form out of DataExplorer into separate QueryEditor view.

* This is also necessary prep for #27 (pagination and offset support)
---
 src/view.js | 59 +++++++++++++++++++++++++++++++++--------------------
 1 file changed, 37 insertions(+), 22 deletions(-)

diff --git a/src/view.js b/src/view.js
index 503fa47c..ef37a2cc 100644
--- a/src/view.js
+++ b/src/view.js
@@ -46,7 +46,6 @@ this.recline.View = this.recline.View || {};
 //
 // **config**: Config options like:
 //
-//   * displayCount: how many documents to display initially (default: 10)
 //   * readOnly: true/false (default: false) value indicating whether to
 //     operate in read-only mode (hiding all editing options).
 //
@@ -63,11 +62,6 @@ my.DataExplorer = Backbone.View.extend({
         <li><a href="#{{id}}" class="btn">{{label}}</a> \
         {{/views}} \
       </ul> \
-      <div class="pagination"> \
-        <form class="display-count"> \
-          Showing 0 to <input name="displayCount" type="text" value="{{displayCount}}" title="Edit and hit enter to change the number of rows displayed" /> of  <span class="doc-count">{{docCount}}</span> \
-        </form> \
-      </div> \
     </div> \
     <div class="data-view-container"></div> \
     <div class="dialog-overlay" style="display: none; z-index: 101; ">&nbsp;</div> \
@@ -79,16 +73,11 @@ my.DataExplorer = Backbone.View.extend({
   </div> \
   ',
 
-  events: {
-    'submit form.display-count': 'onDisplayCountUpdate'
-  },
-
   initialize: function(options) {
     var self = this;
     this.el = $(this.el);
     this.config = _.extend({
-        displayCount: 50
-        , readOnly: false
+        readOnly: false
       },
       options.config);
     if (this.config.readOnly) {
@@ -124,13 +113,11 @@ my.DataExplorer = Backbone.View.extend({
       });
   },
 
+  // TODO: listen for being query and end query events on the dataset ...
+  // (This is no longer called by anything ...)
   query: function() {
-    this.config.displayCount = parseInt(this.el.find('input[name="displayCount"]').val());
-    var queryObj = {
-      size: this.config.displayCount
-    };
     my.notify('Loading data', {loader: true});
-    this.model.query(queryObj)
+    this.model.query()
       .done(function() {
         my.clearNotifications();
         my.notify('Data loaded', {category: 'success'});
@@ -141,11 +128,6 @@ my.DataExplorer = Backbone.View.extend({
       });
   },
 
-  onDisplayCountUpdate: function(e) {
-    e.preventDefault();
-    this.query();
-  },
-
   setReadOnly: function() {
     this.el.addClass('read-only');
   },
@@ -160,6 +142,10 @@ my.DataExplorer = Backbone.View.extend({
     _.each(this.pageViews, function(view, pageName) {
       $dataViewContainer.append(view.view.el)
     });
+    var queryEditor = new my.QueryEditor({
+      model: this.model.queryState
+    });
+    this.el.find('.header').append(queryEditor.el);
   },
 
   setupRouting: function() {
@@ -191,6 +177,35 @@ my.DataExplorer = Backbone.View.extend({
 });
 
 
+my.QueryEditor = Backbone.View.extend({
+  className: 'recline-query-editor', 
+  template: ' \
+    <form class="display-count"> \
+      Showing 0 to <input name="displayCount" type="text" value="{{size}}" title="Edit and hit enter to change the number of rows displayed" /> of  <span class="doc-count">{{docCount}}</span> \
+    </form> \
+  ',
+
+  events: {
+    'submit form.display-count': 'onFormSubmit'
+  },
+
+  initialize: function() {
+    this.el = $(this.el);
+    this.render();
+  },
+  onFormSubmit: function(e) {
+    e.preventDefault();
+    var newSize = parseInt(this.el.find('input[name="displayCount"]').val());
+    this.model.set({size: newSize});
+  },
+  render: function() {
+    var tmplData = this.model.toJSON();
+    var templated = $.mustache(this.template, tmplData);
+    this.el.html(templated);
+  }
+});
+
+
 /* ========================================================== */
 // ## Miscellaneous Utilities