Merge pull request #2713 from doug-salvati/ds2609

Detect when vis fails to render 2.0

app/assets/javascripts/templates/visualizations/photo/pic.hbs

@@ -6,7 +6,7 @@
     </div>
     <div class="item-desc item-photo-desc">
       <div class="item-title word-wrap">
-        Data Set: {{d_name}} ({{d_id}})
+        <i class="fa fa-search-plus"></i> Data Set: {{d_name}} ({{d_id}})
       </div>
     </div>
   </div>

app/assets/javascripts/visualizations/highvis/bar.coffee

@@ -35,6 +35,10 @@ $ ->
         super(@canvas)
 
       start: ->
+        # Validate fields exist
+        if @validate_fields(true) is -4
+          window.location = '/'
+
         @configs.analysisType ?= @ANALYSISTYPE_TOTAL
         @configs.histogramDensity ?= false
 

app/assets/javascripts/visualizations/highvis/baseVis.coffee.erb

@@ -69,6 +69,56 @@ $ ->
       analysisTypeNames: ['Total', 'Maximum', 'Mininum', 'Mean (Average)',
         'Mean with Deviation', 'Mean with 2 SEM', 'Median', 'Row Count']
 
+      ###
+        Makes sure default fields are still in existence
+        Return values:
+           0 -> Everything checks out.
+                There is a field selected and it exists.
+          -1 -> There is no field selected.
+                This is not ALWAYS an error, think about table.
+          -2 -> There is a field selected which does not exist.
+                User needs to reset their defaults.
+          -3 -> Case -1 occurred but the problem could not be
+                auto-fixed.
+          -4 -> Case -2 occurred but the problem could not be
+                auto-fixed. This case could cause serious prolems
+                and should be handled.
+      ###
+      validate_fields: (should_fix_problem) ->
+        fieldIds = for field in data.fields
+          field.fieldID 
+        l = globals.configs.fieldSelection.length
+
+        for id in globals.configs.fieldSelectionIds 
+          if not (id in fieldIds)
+            if should_fix_problem
+              # Choose the first normal field
+              idx = data.normalFields.slice(1)[0]
+              id = fieldIds[idx]
+              if not id?
+                alert "A critical error has occured and the chart can't be drawn.\nIf you are the owner,
+                  please login and reset your defaults.\nYou probably deleted a field."
+                return -4
+              else
+                globals.configs.fieldSelection = [idx]
+                globals.configs.fieldSelectionIds = [id]
+            alert "The default field that you chose has been removed from the project, so a different
+              one was selected. If you are the owner, consider clicking 'Make Default'  in the Save menu to reset."
+            return -2
+
+        if l is 0
+          if should_fix_problem
+            # Choose the first normal field
+            idx = data.normalFields.slice(1)[0]
+            id = fieldIds[idx]
+            if not id?
+              return -3
+            else
+              globals.configs.fieldSelection = [idx]
+              globals.configs.fieldSelectionIds = [id]
+            return -1
+        return 0
+
       ###
       Start sequence used by runtime
       ###

app/assets/javascripts/visualizations/highvis/box.coffee

@@ -39,6 +39,10 @@ $ ->
         @configs.whiskerMode ?= 'iqr'
 
       start: ->
+        # Validate fields exist
+        if @validate_fields(true) is -4
+          window.location = '/'
+
         @configs.displayField = Math.min globals.configs.fieldSelection...
         super()
 

app/assets/javascripts/visualizations/highvis/histogram.coffee

@@ -41,6 +41,10 @@ $ ->
       updatedTooltips:    false
 
       start: ->
+        # Validate fields exist
+        if @validate_fields(true) is -4
+          window.location = '/'
+
         @configs.displayField = Math.min globals.configs.fieldSelection...
         @configs.binSize ?= @defaultBinSize()
         super()

app/assets/javascripts/visualizations/highvis/map.coffee

@@ -55,6 +55,10 @@ $ ->
           delete @timeLines
 
       start: ->
+        # Validate fields exist
+        if @validate_fields(true) is -4
+          window.location = '/'
+
         $('#compass').show()
 
         # Map needs this canvas visible to draw correctly

app/assets/javascripts/visualizations/highvis/photos.coffee

@@ -34,6 +34,10 @@ $ ->
       constructor: (@canvas) ->
 
       start: ->
+        # Validate fields exist
+        if @validate_fields(true) is -4
+          window.location = '/'
+
         super()
 
         # Photos doesn't have any fancy group by options, so set it to a default

app/assets/javascripts/visualizations/highvis/pie.coffee

@@ -39,6 +39,10 @@ $ ->
           else 'Percent'
 
       start: () ->
+        # Validate fields exist
+        if @validate_fields(true) is -4
+          window.location = '/'
+
         @configs.displayField = Math.min globals.configs.fieldSelection...
         @configs.analysisType ?= @ANALYSISTYPE_TOTAL
         super()

app/assets/javascripts/visualizations/highvis/summary.coffee

@@ -36,6 +36,10 @@ $ ->
         @isSummary = true
 
       start: ->
+        # Validate fields exist
+        if @validate_fields(true) is -4
+          window.location = '/'
+
         @configs.displayField = Math.min(globals.configs.fieldSelection...)
         super()
 

app/assets/javascripts/visualizations/highvis/table.coffee

@@ -72,6 +72,10 @@ $ ->
         globals.dateFormatter cellvalue
 
       start: ->
+        # Validate fields exist
+        if @validate_fields(true) is -4
+          window.location = '/'
+
         # Make table visible? (or something)
         $('#' + @canvas).show()