From 345134aac6cb4af9be1464a148d491a3102bc651 Mon Sep 17 00:00:00 2001
From: Bill Erickson <berickxx@gmail.com>
Date: Tue, 11 Aug 2020 11:07:04 -0400
Subject: [PATCH] LP1839562 Ang Vandelay Match Set Replace Mode

Recover "Replace Mode" functionality in the Vandelay Match Set editor
interface, so existing nodes (e.g. And) may be replaced with other nodes
(e.g. Or) without modifying the rest of the tree structure.

Values (Record Attrs / MARC Fields) can replace other values.  Booleans
can replace any type of tree node.

Signed-off-by: Bill Erickson <berickxx@gmail.com>
Signed-off-by: Mary Llewellyn <mllewell@biblio.org>
Signed-off-by: Christine Morgan <cmorgan@noblenet.org>
Signed-off-by: Galen Charlton <gmc@equinoxinitiative.org>
---
 .../match-set-expression.component.html       |  7 +++
 .../match-set-expression.component.ts         | 48 +++++++++++++------
 2 files changed, 41 insertions(+), 14 deletions(-)

diff --git a/Open-ILS/src/eg2/src/app/staff/cat/vandelay/match-set-expression.component.html b/Open-ILS/src/eg2/src/app/staff/cat/vandelay/match-set-expression.component.html
index 9a5ee0ce19..004b7c1cb3 100644
--- a/Open-ILS/src/eg2/src/app/staff/cat/vandelay/match-set-expression.component.html
+++ b/Open-ILS/src/eg2/src/app/staff/cat/vandelay/match-set-expression.component.html
@@ -35,6 +35,13 @@
         [disabled]="!selectedIsBool()" i18n>
         Add To Selected Node
       </button>
+
+      <button class="btn btn-success ml-3" (click)="addChildNode(true)"
+        [disabled]="!hasSelectedNode() ||
+          (newPointType != 'bool' && selectedIsBool())" i18n>
+        Replace Selected Node
+      </button>
+
     </div>
     <div class="row mt-2 ml-2 font-italic" *ngIf="newPointType">
       <ol i18n>
diff --git a/Open-ILS/src/eg2/src/app/staff/cat/vandelay/match-set-expression.component.ts b/Open-ILS/src/eg2/src/app/staff/cat/vandelay/match-set-expression.component.ts
index 891b01a5ff..86c4b76bd1 100644
--- a/Open-ILS/src/eg2/src/app/staff/cat/vandelay/match-set-expression.component.ts
+++ b/Open-ILS/src/eg2/src/app/staff/cat/vandelay/match-set-expression.component.ts
@@ -161,16 +161,27 @@ export class MatchSetExpressionComponent implements OnInit {
         return false;
     }
 
-    addChildNode() {
+    addChildNode(replace?: boolean) {
         this.changesMade = true;
 
-        const pnode = this.tree.selectedNode();
-        const point = this.idl.create('vmsp');
-        point.id(this.newId--);
-        point.isnew(true);
-        point.parent(pnode.id);
-        point.match_set(this.matchSet_.id());
-        point.children([]);
+        const targetNode: TreeNode = this.tree.selectedNode();
+        let point;
+
+        if (replace) {
+            point = targetNode.callerData.point;
+            point.ischanged(true);
+            // Clear previous data
+            ['bool_op', 'svf', 'tag', 'subfield', 'heading']
+                .forEach(f => point[f](null));
+
+        } else {
+            point = this.idl.create('vmsp');
+            point.id(this.newId--);
+            point.isnew(true);
+            point.parent(targetNode.id);
+            point.match_set(this.matchSet_.id());
+            point.children([]);
+        }
 
         const ptype = this.newPoint.values.pointType;
 
@@ -193,13 +204,22 @@ export class MatchSetExpressionComponent implements OnInit {
             point.quality(this.newPoint.values.matchScore);
         }
 
-        const node: TreeNode = new TreeNode({
-            id: point.id(),
-            callerData: {point: point}
-        });
+        if (replace) {
+
+            targetNode.label = null;
+            this.setNodeLabel(targetNode, point);
+
+        } else {
 
-        // Match points are added to the DB only when the tree is saved.
-        this.setNodeLabel(node, point).then(() => pnode.children.push(node));
+            const node: TreeNode = new TreeNode({
+                id: point.id(),
+                callerData: {point: point}
+            });
+
+            // Match points are added to the DB only when the tree is saved.
+            this.setNodeLabel(node, point)
+                .then(() => targetNode.children.push(node));
+        }
     }
 
     expressionAsString(): string {
-- 
2.43.2