Implements forced price refresh (resolves #196)

eos/db/__init__.py

@@ -65,7 +65,8 @@ from eos.db.saveddata.queries import getUser, getCharacter, getFit, getFitsWithS
                                      getCharacterList, getPrice, getDamagePatternList, getDamagePattern, \
                                      getFitList, getFleetList, getFleet, save, remove, commit, add, \
                                      getCharactersForUser, getMiscData, getSquadsIDsWithFitID, getWing, \
-                                     getSquad, getBoosterFits, getProjectedFits, getTargetResistsList, getTargetResists
+                                     getSquad, getBoosterFits, getProjectedFits, getTargetResistsList, getTargetResists,\
+                                     clearPrices
 
 #If using in memory saveddata, you'll want to reflect it so the data structure is good.
 if config.saveddata_connectionstring == "sqlite:///:memory:":

eos/db/saveddata/queries.py

@@ -308,6 +308,12 @@ def getPrice(typeID):
         raise TypeError("Need integer as argument")
     return price
 
+def clearPrices():
+    with sd_lock:
+        deleted_rows = saveddata_session.query(Price).delete()
+    commit()
+    return deleted_rows
+
 def getMiscData(field):
     if isinstance(field, basestring):
         with sd_lock:

gui/builtinContextMenus/__init__.py

@@ -14,5 +14,6 @@ __all__ = [
     "whProjector",
     "cargo",
     "shipJump",
-    "targetResists"
+    "targetResists",
+    "priceClear"
 ]

gui/builtinContextMenus/priceClear.py

@@ -0,0 +1,22 @@
+from gui.contextMenu import ContextMenu
+import gui.mainFrame
+import wx
+import gui.globalEvents as GE
+import service
+
+class PriceClear(ContextMenu):
+    def __init__(self):
+        self.mainFrame = gui.mainFrame.MainFrame.getInstance()
+
+    def display(self, srcContext, selection):
+        return "priceViewFull" in srcContext
+
+    def getText(self, itmContext, selection):
+        return "Reset Price Cache"
+
+    def activate(self, fullContext, selection, i):
+        sMkt = service.Market.getInstance()
+        sMkt.clearPriceCache()
+        wx.PostEvent(self.mainFrame, GE.FitChanged(fitID=self.mainFrame.getActiveFit()))
+
+PriceClear.register()

service/market.py

@@ -699,6 +699,10 @@ class Market():
 
         self.priceWorkerThread.trigger(requests, cb)
 
+    def clearPriceCache(self):
+        self.priceCache.clear()
+        deleted_rows = eos.db.clearPrices()
+
     def getSystemWideEffects(self):
         """
         Get dictionary with system-wide effects