Closes #756, add "parent item" info for child notes from letters and interviews

Also:

- Adds two modes to toArray() for including letter/interview titles
- Adds mode to getDisplayTitle() for including author and date

chrome/content/zotero/xpcom/data_access.js

@@ -641,7 +641,7 @@ Zotero.Item.prototype.setField = function(field, value, loadIn){
  * This is the same as the standard title field except for letters and interviews,
  * which get placeholder titles in square braces (e.g. "[Letter to Thoreau]")
  */
-Zotero.Item.prototype.getDisplayTitle = function () {
+Zotero.Item.prototype.getDisplayTitle = function (includeAuthorAndDate) {
 	var title = this.getField('title');
 	
 	var itemTypeID = this.getType();
@@ -649,17 +649,35 @@ Zotero.Item.prototype.getDisplayTitle = function () {
 	
 	if (!title && (itemTypeID == 8 || itemTypeID == 10)) { // 'letter' and 'interview' itemTypeIDs
 		var creators = this.getCreators();
+		var authors = [];
 		var participants = [];
 		if (creators) {
 			for each(var creator in creators) {
 				if ((itemTypeID == 8 && creator.creatorTypeID == 16) || // 'letter'/'recipient'
-					(itemTypeID == 10 && creator.creatorTypeID == 7)) { // 'interview'/'interviewee'
+						(itemTypeID == 10 && creator.creatorTypeID == 7)) { // 'interview'/'interviewer'
 					participants.push(creator);
 				}
+				else if ((itemTypeID == 8 && creator.creatorTypeID == 1) ||   // 'letter'/'author'
+						(itemTypeID == 10 && creator.creatorTypeID == 6)) { // 'interview'/'interviewee'
+					authors.push(creator);
+				}
+			}
+		}
+		
+		var strParts = [];
+		
+		if (includeAuthorAndDate) {
+			var names = [];
+			for each(author in authors) {
+				names.push(author.lastName);
+			}
+			
+			// TODO: Use same logic as getFirstCreatorSQL() (including "et al.")
+			if (names.length) {
+				strParts.push(Zotero.localeJoin(names, ', '));
 			}
 		}
 		
-		title = '[';
 		if (participants.length > 0) {
 			var names = [];
 			for each(participant in participants) {
@@ -681,11 +699,21 @@ Zotero.Item.prototype.getDisplayTitle = function () {
 				default:
 					var str = 'manyParticipants';
 			}
-			title += Zotero.getString('pane.items.' + itemTypeName + '.' + str, names);
+			strParts.push(Zotero.getString('pane.items.' + itemTypeName + '.' + str, names));
 		}
 		else {
-			title += Zotero.getString('itemTypes.' + itemTypeName);
+			strParts.push(Zotero.getString('itemTypes.' + itemTypeName));
 		}
+		
+		if (includeAuthorAndDate) {
+			var d = this.getField('date');
+			if (d) {
+				strParts.push(d);
+			}
+		}
+		
+		title = '[';
+		title += Zotero.localeJoin(strParts, '; ');
 		title += ']';
 	}
 	
@@ -2374,11 +2402,16 @@ Zotero.Item.prototype.isCollection = function(){
 }
 
 
-/**
+/*
-* Convert the item data into a multidimensional associative array
+ * Convert the item data into a multidimensional associative array
-*	for use by the export functions
+ *	for use by the export functions
-**/
+ *
-Zotero.Item.prototype.toArray = function(){
+ * Modes:
+ *
+ * 1 == e.g. [Letter to Valee]
+ * 2 == e.g. [Stothard; Letter to Valee; May 8, 1928]
+ */
+Zotero.Item.prototype.toArray = function(mode) {
 	if (this.getID() && !this._itemDataLoaded){
 		this._loadItemData();
 	}
@@ -2415,6 +2448,14 @@ Zotero.Item.prototype.toArray = function(){
 		arr[Zotero.ItemFields.getName(i)] = this._itemData[i] ? this._itemData[i] : '';
 	}
 	
+	if (mode == 1 || mode == 2) {
+		if (!arr.title &&
+				(this.getType() == Zotero.ItemTypes.getID('letter') ||
+				this.getType() == Zotero.ItemTypes.getID('interview'))) {
+			arr.title = this.getDisplayTitle(mode == 2);
+		}
+	}
+	
 	if (!this.isNote() && !this.isAttachment()){
 		// Creators
 		arr['creators'] = [];

components/zotero-protocol-handler.js

@@ -157,7 +157,7 @@ function ChromeExtensionHandler() {
 					// If combining children, add matching parents
 					else if (combineChildItems) {
 						itemsHash[results[i].getID()] = items.length;
-						items.push(results[i].toArray());
+						items.push(results[i].toArray(2));
 						// Flag item as a search match
 						items[items.length - 1].reportSearchMatch = true;
 					}
@@ -185,12 +185,12 @@ function ChromeExtensionHandler() {
 				}
 				
 				if (combineChildItems) {
-					// Add parents of matches if not parents aren't matches themselves
+					// Add parents of matches if parents aren't matches themselves
 					for (var id in searchParentIDs) {
 						if (!searchItemIDs[id]) {
 							var item = Zotero.Items.get(id);
 							itemsHash[id] = items.length;
-							items.push(item.toArray());
+							items.push(item.toArray(2));
 						}
 					}
 					
@@ -225,7 +225,7 @@ function ChromeExtensionHandler() {
 							// add on its own
 							if (searchItemIDs[parentID]) {
 								itemsHash[parentID] = [items.length];
-								items.push(parentItem.toArray());
+								items.push(parentItem.toArray(2));
 								items[items.length - 1].reportSearchMatch = true;
 							}
 							else {
@@ -235,7 +235,7 @@ function ChromeExtensionHandler() {
 						
 						// Now add parent and child
 						itemsHash[parentID].push(items.length);
-						items.push(parentItem.toArray());
+						items.push(parentItem.toArray(2));
 						if (item.isNote()) {
 							items[items.length - 1].reportChildren = {
 								notes: [item.toArray()],