Add refreshing

MongoView/Base.lproj/MainMenu.xib

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="15702" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
+<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="16085" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
     <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="15702"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="16085"/>
     </dependencies>
     <objects>
         <customObject id="-2" userLabel="File's Owner" customClass="NSApplication">
@@ -107,7 +107,8 @@
                                     <action selector="saveDocumentAs:" target="-1" id="mDf-zr-I0C"/>
                                 </connections>
                             </menuItem>
-                            <menuItem title="Revert to Saved" keyEquivalent="r" id="KaW-ft-85H">
+                            <menuItem title="Revert to Saved" id="KaW-ft-85H">
+                                <modifierMask key="keyEquivalentModifierMask"/>
                                 <connections>
                                     <action selector="revertDocumentToSaved:" target="-1" id="iJ3-Pv-kwq"/>
                                 </connections>
@@ -362,6 +363,11 @@
                     <modifierMask key="keyEquivalentModifierMask"/>
                     <menu key="submenu" title="Database" id="nD3-Xo-LUZ">
                         <items>
+                            <menuItem title="Refresh" keyEquivalent="r" id="kpI-5J-eaC">
+                                <connections>
+                                    <action selector="refresh:" target="-1" id="S5L-sX-Z2j"/>
+                                </connections>
+                            </menuItem>
                             <menuItem title="Run Query" id="RSP-nH-a1I">
                                 <string key="keyEquivalent" base64-UTF8="YES">
 DQ

MongoView/MongoController.swift

@@ -34,4 +34,12 @@ class MongoController {
         client = try! MongoClient(connectionString, using: group)
     }
     
+    func db(for collection: DatabaseCollection) -> MongoDatabase {
+        return client.db(collection.database)
+    }
+    
+    func collection(_ collection: DatabaseCollection) -> MongoCollection<Document> {
+        return db(for: collection).collection(collection.name)
+    }
+
 }

MongoView/View Controllers/DatabaseViewController.swift

@@ -150,10 +150,11 @@ class DatabaseViewController: NSViewController {
     }
 
     @IBAction func runQuery(_ sender: Any) {
-        guard let queryViewController = queryViewController else {
+        queryViewController?.runQuery()
-            return
     }
-        queryViewController.runQuery()
+    
+    @IBAction func refresh(_ sender: Any) {
+        queryViewController?.refresh()
     }
 }
 

MongoView/View Controllers/QueryViewController.swift

@@ -27,6 +27,8 @@ class QueryViewController: NSViewController {
         return queryTextView.string != defaultQuery
     }
     
+    var mostRecentQuery: String? = nil
+    
     var rootNodes: [Node] = []
     
     init(mongoController: MongoController, collection: DatabaseCollection) {
@@ -43,10 +45,7 @@ class QueryViewController: NSViewController {
     override func viewDidLoad() {
         super.viewDidLoad()
         
-        let db = mongoController.client.db(collection.database)
+        refresh()
-        let collection = db.collection(self.collection.name)
-        let documents = try! collection.find().all()
-        rootNodes = documents.map { Node(document: $0) }
 
         verticalSplitView.delegate = self
         verticalSplitView.setHoldingPriority(.defaultHigh, forSubviewAt: 0)
@@ -61,9 +60,6 @@ class QueryViewController: NSViewController {
         outlineView.target = self
         outlineView.doubleAction = #selector(outlineCellDoubleClicked)
         
-        title = "\(self.collection.database).\(self.collection.name)"
-
-        documentCountLabel.stringValue = "\(documents.count) document\(documents.count == 1 ? "" : "s")"
     }
     
     override func viewWillAppear() {
@@ -80,10 +76,33 @@ class QueryViewController: NSViewController {
         view.window!.makeFirstResponder(outlineView)
     }
     
-    func runQuery() {
+    func refresh(reload: Bool = true) {
-        let query = queryTextView.string
+        if let query = mostRecentQuery {
             let connStr = "\(mongoController.connectionString)/\(collection.database)"
             
+            rootNodes = MongoEvaluator.eval(command: query, connectingTo: connStr).map {
+                Node(value: $0)
+            }
+            
+            title = query
+            documentCountLabel.stringValue = "\(rootNodes.count) result\(rootNodes.count == 1 ? "" : "s")"
+        } else {
+            let documents = try! mongoController.collection(collection).find().all()
+            rootNodes = documents.map { Node(document: $0) }
+
+            title = "\(self.collection.database).\(self.collection.name)"
+            documentCountLabel.stringValue = "\(documents.count) document\(documents.count == 1 ? "" : "s")"
+        }
+        if reload {
+            outlineView.reloadData()
+        }
+    }
+    
+    func runQuery() {
+        mostRecentQuery = queryTextView.string
+        refresh()
+    }
+
         rootNodes = MongoEvaluator.eval(command: query, connectingTo: connStr).map {
             Node(value: $0)
         }
@@ -102,6 +121,15 @@ class QueryViewController: NSViewController {
     
 }
 
+extension QueryViewController: NSMenuItemValidation {
+    func validateMenuItem(_ menuItem: NSMenuItem) -> Bool {
+        if menuItem.action == #selector(deleteNode(_:)) {
+            return outlineView.clickedRow != -1
+        }
+        return true
+    }
+}
+
 extension QueryViewController: NSSplitViewDelegate {
     func splitView(_ splitView: NSSplitView, constrainSplitPosition proposedPosition: CGFloat, ofSubviewAt dividerIndex: Int) -> CGFloat {
         return max(80, min(splitView.bounds.height / 2, proposedPosition))