INT-1243 correct has_duplicate detection, date minichart for 1000 docs

Author: rueckstiess

src/app/minicharts/d3fns/coordinates.js

@@ -18,7 +18,7 @@ var minicharts_d3fns_coordinates = function() {
   var options = {
     view: null
   };
-  var margin = shared.margin;
+  var margin = _.copy(shared.margin);
   margin.bottom = 20;
 
   var xScale = d3.scale.linear();

src/app/minicharts/d3fns/date.js

@@ -6,6 +6,7 @@ var moment = require('moment');
 var shared = require('./shared');
 var many = require('./many');
 var raf = require('raf');
+
 // var debug = require('debug')('mongodb-compass:minicharts:date');
 
 require('../d3-tip')(d3);
@@ -261,6 +262,9 @@ var minicharts_d3fns_date = function() {
 
       lines.enter().append('line')
         .attr('class', 'line selectable')
+        .style('opacity', function() {
+          return values.length > 100 ? 0.3 : 1.0;
+        })
         .on('mouseover', tip.show)
         .on('mouseout', tip.hide)
         .on('mousedown', handleMouseDown);

src/app/minicharts/index.js

@@ -143,7 +143,7 @@ module.exports = AmpersandView.extend(QueryBuilderMixin, {
         this.subview = new VizView(this.viewOptions);
       }
     } else if (['String', 'Number'].indexOf(this.model.name) !== -1
-      && this.model.unique === this.model.count) {
+      && !this.model.has_duplicates) {
       // unique values get a div-based UniqueMinichart
       this.viewOptions.renderMode = 'html';
       this.viewOptions.vizFn = null;