Remove sample & sample areas from add things step UI #1305

They will not appear in select2 widget search suggestion,
in result from search API, or in sidebar initial results.

They will still appear in the final report's
"Child Physical Things" section

arches_for_science/media/js/views/components/workflows/create-project-workflow/add-things-step.js

@@ -86,6 +86,12 @@ define([
             params.dirty(dirty);
         });
 
+        const sampleSubstring = '[Sample';  // for "[Sample of ..." and "[Sample Area of ..."
+        const regionSubstring = '[Region';
+        const sampleConceptId = '9db724b9-b3c7-4761-9a50-673d64a15bd8';
+        const sampleAreaConceptId = '2703e524-b5ea-4548-bea7-7ce354e4e05a';
+        const regionConceptId = 'a2588fa8-5ae6-4770-a473-dec0c05fb175';
+
         this.value.subscribe(function(a) {
             a.forEach(function(action) {
                 if (action.status === 'added') {
@@ -116,6 +122,12 @@ define([
                         .filter(rr =>
                             rr.graph_id === "9519cb4f-b25b-11e9-8c7b-a4d18cec433a"
                         )
+                        // Exclude related resources that are samples or sample areas
+                        .filter(rr =>
+                            rr.domains.map(d => d.conceptid).filter(
+                                cid => [sampleConceptId, sampleAreaConceptId, regionConceptId].includes(cid)
+                            ).length === 0
+                        )
                 );
 
                 self.startValue().forEach(function(val){
@@ -237,6 +249,27 @@ define([
         params.form.save = self.submit;
         params.form.onSaveSuccess = function() {};
 
+        const termFilterExcludingSamples = {
+            type: 'string',
+            context: '',
+            context_label: 'Exclude samples',
+            id: 'sample',
+            // not localized
+            text: sampleSubstring,
+            value: sampleSubstring,
+            inverted: 'true',
+        };
+        const termFilterExcludingRegions = {
+            type: 'string',
+            context: '',
+            context_label: 'Exclude regions',
+            id: 'region',
+            // not localized
+            text: regionSubstring,
+            value: regionSubstring,
+            inverted: 'true',
+        };
+
         this.targetResourceSelectConfig = {
             value: self.selectedTerm,
             minimumInputLength: 2,
@@ -269,11 +302,15 @@ define([
                         text: value,
                         value: value
                     });
+                    results.push(termFilterExcludingSamples);
+                    results.push(termFilterExcludingRegions);
                     self.termOptions = results;
 
                     const filteredResults = results.filter(function(result){
-                        return result.context_label.includes("Physical Thing") ||
-                        result.context_label.includes("Search Term");
+                        return (
+                            result.context_label.includes("Physical Thing") ||
+                            result.context_label.includes("Search Term")
+                        ) && !result.text.includes(sampleSubstring) && !result.text.includes(regionSubstring);
                     });
                     return {
                         results: filteredResults,
@@ -313,10 +350,12 @@ define([
                 }
             });
 
+            const termFiltersToUse = [termFilterExcludingSamples, termFilterExcludingRegions];
             if (termFilter) {
                 termFilter['inverted'] = false;
-                filters["term-filter"] = JSON.stringify([termFilter]);
-            } 
+                termFiltersToUse.unshift(termFilter);
+            }
+            filters['term-filter'] = JSON.stringify(termFiltersToUse);
 
             if (pagingFilter) {
                 filters['paging-filter'] = pagingFilter;