fully implementing bulk functional transform

attachments/script/costco.js

@@ -2,58 +2,29 @@
 
 var costco = function() {
 
-  var toUpdate = [];
-
   function handleEditorChange(e) {
-    mapDocs(e.target.value);
-  }
-  
-  function computeChanges() {
-    $("#notification-message").text("Computing changes...");
-
-    var text = $("#map-function").val();
-    var docs;
-    try {
-      docs = JSON.parse(text);
-    }
-    catch(e) {
-      try {
-        docs = JSON.parse("[" + text + "]");
-      }   
-      catch(e) {
-        // not JSON, must be an edit function
-        return mapDocs(text);
-      }
-    }  
-    if(!docs.length) docs = [docs];
-    
-    toUpdate = docs;
-    
-    $("#notification-message").text("Computing changes...");
-    
-    $("#status").html("<span class='warning'>About to add " + docs.length
-            + " docs to " + getDb().name  + "</span>");
-    $("#update-container").show();
+    mapDocs(app.cache, e.target.value, true);
   }
 
-  function mapDocs(funcString) {
-    var errors = $('.expression-preview-parsing-status');
+  function mapDocs(docs, funcString, preview) {
+    if(preview) var errors = $('.expression-preview-parsing-status');
     try {
       eval("var editFunc = " + funcString);
-      errors.text('No syntax error.');
+      if(preview) errors.text('No syntax error.');
     } catch(e) {
-      errors.text(e+"");
+      if(preview) errors.text(e+"");
       return;
     }
 
-    toUpdate = [];
-    var deleted = 0
+    var toUpdate = []
+      , deleted = 0
       , edited = 0
       , failed = 0
-      , count = 0
-      , preview = [];
+      ;
+    
+    if(preview) var preview = [];
       
-    _.each(app.cache, function(doc) {
+    _.each(docs, function(doc) {
       try {
         var updated = editFunc(_.clone(doc));
       } catch(e) {
@@ -69,37 +40,21 @@ var costco = function() {
         toUpdate.push(updated);
         edited++;
       }
-      preview.push({before: doc[app.currentColumn], after: updated[app.currentColumn]});
-      count++;
+      if(preview) preview.push({before: doc[app.currentColumn], after: updated[app.currentColumn]});
     });
     
-    util.render('editPreview', 'editPreview', {rows: preview});
-        // 
-        // // todo: make template for this
-        // $("#status").html("<span class='warning'>About to edit " + edited
-        //         + " docs and delete " + deleted + " docs from "
-        //         + getDb().name  + "</span>");
-        // if(failed)
-        //   $("#status").append(". Edit function threw on " + failed + " docs");
-        // $("#update-container").show();
+    if(preview) util.render('editPreview', 'editPreview', {rows: preview});
+    return toUpdate;
   }
 
-  function updateDocs(callback) {
-    if(!toUpdate.length)
-      return callback();
-
-    getDb().bulkSave({docs: toUpdate}, {
-      success: callback,
-      error: function(req, status, err) {
-        $("#status").html("<span class='error'>error updating docs: "
-           + err + "</span>");
-      }
-    });
+  function updateDocs(docs, callback) {
+    if(!docs.length)
+      return callback("Failed to update");    
+    couch.request({url: app.baseURL + "api/_bulk_docs", type: "POST", data: JSON.stringify({docs: docs})}).then(callback);
   }
 
   return {
     handleEditorChange: handleEditorChange,
-    computeChanges: computeChanges,
     mapDocs: mapDocs,
     updateDocs: updateDocs
   };