Filter features before loading

MarkC1

I want to filter features based on the user that is logged in. This should be invisible to the user and require no user interaction or on screen widget. Similar questions have been asked before but I haven't had any success trying to implement this.

Run Filter in background executing programmatically an expession 

Filtering a webmap layer within a web appbuilder application on startup 

The answer seems to be to use the filter manager class: FilterManager class—ArcGIS Web AppBuilder (Developer Edition) | ArcGIS for Developers 

, and to use this method applyWidgetFilter (layerId, widgetId, expression) somewhere in the MapManager.js file 

 

I've been struggling to apply this however and haven't been able to get it to work. Has anyone any experience here that they could guide me?

RobertScheitlin__GISP

Mark,

  In the MapManager.js _show2DWebMap method (see line 46). 

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          <SPAN class="keyword token">var</SPAN> map <SPAN class="operator token">=</SPAN> response<SPAN class="punctuation token">.</SPAN>map<SPAN class="punctuation token">;</SPAN>

          <SPAN class="comment token">//hide the default zoom slider</SPAN>
          map<SPAN class="punctuation token">.</SPAN><SPAN class="token function">hideZoomSlider</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

          <SPAN class="comment token">// set default size of infoWindow.</SPAN>
          map<SPAN class="punctuation token">.</SPAN>infoWindow<SPAN class="punctuation token">.</SPAN><SPAN class="token function">resize</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="number token">270</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="number token">316</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
          <SPAN class="comment token">//var extent;</SPAN>
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          map<SPAN class="punctuation token">.</SPAN>itemInfo <SPAN class="operator token">=</SPAN> response<SPAN class="punctuation token">.</SPAN>itemInfo<SPAN class="punctuation token">;</SPAN>
          map<SPAN class="punctuation token">.</SPAN>webMapResponse <SPAN class="operator token">=</SPAN> response<SPAN class="punctuation token">;</SPAN>
          <SPAN class="comment token">// enable snapping</SPAN>
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            snapKey<SPAN class="punctuation token">:</SPAN> keys<SPAN class="punctuation token">.</SPAN>copyKey
          <SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">;</SPAN>
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          <SPAN class="comment token">//save layer's original refreshInterval</SPAN>
          <SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN>layerInfosObj<SPAN class="punctuation token">.</SPAN><SPAN class="token function">getLayerInfoArrayOfWebmap</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">forEach</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">function</SPAN><SPAN class="punctuation token">(</SPAN>layerInfo<SPAN class="punctuation token">)</SPAN> <SPAN class="punctuation token">{</SPAN>
            layerInfo<SPAN class="punctuation token">.</SPAN><SPAN class="token function">getLayerObject</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">then</SPAN><SPAN class="punctuation token">(</SPAN>lang<SPAN class="punctuation token">.</SPAN><SPAN class="token function">hitch</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="keyword token">function</SPAN><SPAN class="punctuation token">(</SPAN>layerObject<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">{</SPAN>
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              console<SPAN class="punctuation token">.</SPAN><SPAN class="token function">error</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">"can't get layerObject"</SPAN><SPAN class="punctuation token">,</SPAN> err<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            <SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
          <SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

          <SPAN class="keyword token">if</SPAN><SPAN class="punctuation token">(</SPAN>appConfig<SPAN class="punctuation token">.</SPAN>map<SPAN class="punctuation token">.</SPAN>mapRefreshInterval <SPAN class="operator token">&&</SPAN> <SPAN class="operator token">!</SPAN>appConfig<SPAN class="punctuation token">.</SPAN>map<SPAN class="punctuation token">.</SPAN>mapRefreshInterval<SPAN class="punctuation token">.</SPAN>useWebMapRefreshInterval<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">{</SPAN>
            <SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">_updateRefreshInterval</SPAN><SPAN class="punctuation token">(</SPAN>appConfig<SPAN class="punctuation token">.</SPAN>map<SPAN class="punctuation token">.</SPAN>mapRefreshInterval<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
          <SPAN class="punctuation token">}</SPAN>

          <SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">_showUnreachableLayersTitleMessage</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
          <SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">_publishMapEvent</SPAN><SPAN class="punctuation token">(</SPAN>map<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
          <SPAN class="token function">setTimeout</SPAN><SPAN class="punctuation token">(</SPAN>lang<SPAN class="punctuation token">.</SPAN><SPAN class="token function">hitch</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN>_checkAppState<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="number token">500</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
          <SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">_addDataLoadingOnMapUpdate</SPAN><SPAN class="punctuation token">(</SPAN>map<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
          <SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">_hideError</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
          <SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN>filterManager<SPAN class="punctuation token">.</SPAN><SPAN class="token function">applyWidgetFilter</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">'LOJIC_PublicSafety_Louisville_8690'</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="keyword token">null</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"PD_NAME LIKE '% DIVISION'"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
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          <SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">_showError</SPAN><SPAN class="punctuation token">(</SPAN>error<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
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