Latest Contributions by Arne_Gelfert

Okay, I'm venturing into somewhat new terrain here... I've read countless examples providing various levels of clarity on the subject but I'm banging my head against the wall trying to make my example work. After working through a few easy examples of custom widget for Web AppBuilder and successfully interacting with map and layers, etc. I wanted to try and bring in some of the JSAPI modules. Objective: hook a dom input field up to event listener/handler that executes a query against a map service. After a few circuitous failed attempts, I settled for trying to adapt this ESRI example:  https://developers.arcgis.com/javascript/3/jshelp/intro_querytask.html. In my imports I have the following: define(['dojo/_base/declare', 'jimu/BaseWidget', 'dijit/_WidgetsInTemplateMixin', //The Mixin is like my MultiVitamin. //Not sure I need it here but I've //needed in the past and learned the hard way. 'esri/tasks/QueryTask', //query and QueryTask (watch for upper/lower case!) 'esri/tasks/query', //are needed for the query. "dojo/_base/lang", //to hitch a lang "dojo/on", //"On" and "dom" I'm using for the event handling. "dojo/dom"], function(declare, BaseWidget, _WidgetsInTemplateMixin, QueryTask, Query, lang, on, dom)‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ My template code all follows the Custom Widget template, so I won't include here. All my custom code I packed in the onOpen lifecycle function, starting with: onOpen: function(){ this.inherited(arguments); // Dont' know if I really need this - do I? console.log('onOpen'); var searchBtn = dom.byId('searchBtn'); on(searchBtn,"click",function(evt){ lang.hitch(this,lang.hitch(this,executeQueryTask())); // Just my last attempt... });‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ So this handles the input event. Next I set up my query: var query = new Query(); query.returnGeometry = false; query.outFields = ["NAME"]; // Any field will do right now queryUrl = "https:// ... this is the URL to my service ends in ....MapServer/0"; var queryTask = new QueryTask({queryUrl});‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ Finally, simplifying the above ESRI example. I set up three (3) functions: Reads the current input in the DOM field. Executes the query using the JS API. Displays the results passed from 2) and print record count to the console. function showResults(featureSet) { var resultFeaturesCount = featureSet.features.length; console.log(resultFeaturesCount); } function getInput(){ return document.getElementById('searchField').value; } function executeQueryTask() { query.where = `NAME like '%${getInput()}%'` queryTask.execute(query,showResults); }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ So I think I understand what I'm trying to do. My widget looks great. My event handler works. But the error has been the same all along: Uncaught TypeError: Cannot read property 'query' of undefined at Object.execute (init.js:2315) at Object.c.<computed> [as execute] (init.js:1148) at executeQueryTask (Widget.js?wab_dv=2.14:101) at HTMLInputElement.<anonymous> (Widget.js?wab_dv=2.14:67)‍‍‍‍‍ Everything I've read (most of it by our generous contributor Robert Scheitlin, GISP) leads me to believe this is all about scope. So what am I missing? The scope-hitch-lang still confuses me. ... View more

In a separate post a while back, I was hoping to solicit some guidance on how to use the geoprocessing widget.  After some distractions, I'm now returning to this effort. I have built a few functioning Python tool(boxe)s with ArcGIS Pro now. I understand how to interact with the map layout in Pro to programmatically create PDF of my map and modify the map for conversion to PDF. I am not completely sure how that related to what ESRI calls a "staged layout template." But that has to be similar to what I'm doing. First, I want to replace my aprx reference to a project file with one to a web map. Memorable ESRI Quote #1 For advanced printing scenarios, you ...  can use the ConvertWebMapToMapDocument (for ArcMap) or ConvertWebMapToArcGISProject (for ArcGIS Pro) functions in the Python arcpy module. So I am trying to leverage arcpy.mp.ConvertWebMapToArcGISProject(<webmap_as_json>, <some_wonderful_pdf>)‍ There is no simple way of generating some sample JSON describing your web map that you could use to test your script. So after publishing a script as a geoprocessing service that takes <webmap_as_json> as an argument, how do I pass the json ? I can hook Web AppBuilder's Geoprocessing widget into my geoprocessing services but it's needing that JSON to feed on. So I'm inclined to think I'm headed down the wrong path. Questions: Which widget, if any, can call geoprocessing services and pass along the JSON? Is a "staged layout template" just a PAGX file sitting in a folder registered with my hosting server? ... View more