Split out the data model because I'm using a flat SQL table for the dashboard now. Most everything hooked up.

python/modes_datamodel.py

@@ -0,0 +1,71 @@
+
+#so, not to be a dick or anything, but this thing could be entirely
+#replaced with a clever SQL join or just a separate SQL table flattened
+#in modes_sql and designed specifically for this. you can keep the older
+#ones, too. this would let you access indices by column name, too. bonus.
+#you wouldn't get the nice hierarchical tree view, though. what does that lose you?
+#you'd need a different datamodel for the tree view, that's all.
+class modes_datamodel(QtCore.QAbstractItemModel):
+    def __init__(self, db):
+        QtCore.QAbstractItemModel.__init__(self)
+        self.db = db
+        
+    def rowCount(self, parent=QtCore.QModelIndex()):
+        icaoquery = "select count(distinct icao) from positions"
+        query = QtSql.QSqlQuery()
+        query.exec_(icaoquery)
+        query.next()
+        return query.value(0).toInt()[0]
+                
+    def columnCount(self, parent=QtCore.QModelIndex()):
+        return 5
+
+    #for future use
+    def flags(self, index):
+        return QtCore.QAbstractItemModel.flags(self, index)
+    
+    def data(self, index, role=QtCore.Qt.DisplayRole):
+        if not index.isValid():
+            return QtCore.QVariant()
+        if index.row() >= self.rowCount():
+            return QtCore.QVariant()
+        if role == QtCore.Qt.DisplayRole or role == QtCore.Qt.EditRole:
+            #get ICAO of current index
+            query = QtSql.QSqlQuery()
+            #TODO: limit this to aircraft seen in last 600 seconds? or make a spinbox for this limit.
+            icaoquery = "select distinct icao from positions order by icao limit %i,1" % index.row()
+            query.exec_(icaoquery)
+            query.next()
+            icao = query.value(0).toInt()[0]
+            #TODO figure out how to grab multiple records in one query and return them all?
+            if index.column() == 0: #ICAO
+                return "%06x" % icao
+            elif index.column() == 1: #last seen
+                seenquery = "select seen from positions where icao = %i order by seen desc limit 1" % icao
+                query.exec_(seenquery)
+                return "" if query.next() is False else query.value(0).toString()
+            elif index.column() == 2: #ident
+                identquery = "select ident from ident where icao = %i" % icao
+                query.exec_(identquery)
+                return "" if query.next() is False else query.value(0).toString()
+            elif index.column() == 3: #altitude
+                querystr = "select alt from positions where icao = %i order by seen desc limit 1" % icao
+                query.exec_(querystr)
+                return "" if query.next() is False else "%i" % query.value(0).toInt()[0]
+            elif index.column() == 4: #latitude
+                querystr = "select lat from positions where icao = %i order by seen desc limit 1" % icao
+                query.exec_(querystr)
+                return "" if query.next() is False else "%.6f" % query.value(0).toFloat()[0]
+            elif index.column() == 5: #longitude
+                querystr = "select lon from positions where icao = %i order by seen desc limit 1" % icao
+                query.exec_(querystr)
+                return "" if query.next() is False else "%.6f" % query.value(0).toFloat()[0]
+
+        else:
+            return QtCore.QVariant()
+
+    def index(self, row, column, parent=QtCore.QModelIndex()):
+        return self.createIndex(row, column)
+
+    def parent(self, child):
+        return QtCore.QModelIndex()