--- ECHO_content/ECHO_helpers.py	2008/09/08 19:02:30	1.90
+++ ECHO_content/ECHO_helpers.py	2009/04/16 15:40:42	1.98
@@ -19,6 +19,7 @@ import bz2
 import xmlrpclib
 import sys
 import logging
+import amara
 
 #erstzt logging
 def logger(txt,method,txt2):
@@ -27,6 +28,10 @@ def logger(txt,method,txt2):
 
 displayTypes = ['ZSQLExtendFolder','ZSQLBibliography','ECHO_group','ECHO_collection','ECHO_resource','ECHO_link','ECHO_sqlElement','ECHO_pageTemplate','ECHO_externalLink','ImageCollectionIFrame','VLP_resource','VLP_essay','ECHO_ZCatalogElement','ImageCollection','versionedFileFolder','extVersionedFileFolder','ECHO_movie']
 
+def normalizeCt(str):
+        """normalizes content_type"""
+        #str= str.replace(" ","_")
+        return str.replace("-"," ").lower()
 
 #decode and compress for xmlrpc communication with OSAS_server
 
@@ -84,6 +89,35 @@ class ECHO_basis:
     management_page_charset="utf-8"
     isVisible = True
     
+    # Managment for the PID
+    def setPID(self,pid):
+        """set the pid"""
+        logging.debug(self.getID()+" PID set to "+pid)
+        self.pid=pid
+        return True
+        
+    def getPID(self):
+        """get the pid"""
+
+        pid =getattr(self,'pid',None)
+
+        if pid == self.getParentPID():
+            return None
+        else:
+            return pid
+
+        
+    def getParentPID(self):
+        """get the PID of the parent"""
+        parent = self.aq_parent
+        
+        pidF = getattr(parent,'getPID',None)
+        
+        if pidF is None:
+            return None
+            
+        else:
+            return pidF()
 
     def unicodify(self, s):
         """return unicode object for string (utf-8 or latin1) or unicode object s"""
@@ -109,7 +143,8 @@ class ECHO_basis:
     def showRDF(self):
             """showrdf"""
             self.REQUEST.RESPONSE.setHeader('Content-Type','text/xml')
-            ret="""<?xml version="1.0" encoding="utf-8"?>\n<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"  xmlns:ECHONAVIGATION="http://www.echo.eu/rdf#">\n"""
+            ret="""<?xml version="1.0" encoding="utf-8"?>\n<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"  xmlns:ECHONAVIGATION="http://www.echo.eu/rdf#"
+            xmlns:MPIWG="http://www.mpiwg-berlin.mpg.de/ns/mpiwg">\n"""
 
             ret+=self.getRDF(urn="echo:collectionroot")+"\n"
 
@@ -172,8 +207,8 @@ class ECHO_basis:
                     nurn=self.absolute_url()+'/showMetaDataXML'
                     ret+=getRDFDescription(self,self.absolute_url()+'/showMetaDataXML',urn=nurn,nameDef="Metadata",typeName="ECHO_metaData")
 
+       
             return ret
-            
     def content_html_XMLRpc(self):
         """xml_rpc_version"""
         return encodeRPC(self.content_html())
@@ -207,6 +242,12 @@ class ECHO_basis:
             return self.isVisible
         return True
     
+    def getDescription(self):
+        """get content of description field"""
+        
+      
+        return self.unicodify(getattr(self,'description',''));
+    
     def getTitle(self):
         """title"""
         if hasattr(self,'getLanguage'):
@@ -419,7 +460,13 @@ class ECHO_basis:
         """generate map link"""
         bt = BrowserCheck(self)
         id = ob.getFullId()
-        link = ob.getLinkId()
+        url = ob.getTargetUrl()
+        if url == "":
+            # ECHOResource with empty link -> no link
+            href = 'href="#" onclick="return false;"'
+        else:
+            href = 'href="%s"'%ob.getLinkId()
+        
         if target is None:
             targetattr = ""
         else:
@@ -435,11 +482,11 @@ class ECHO_basis:
         tag = ""
         if bt.isN4:
             # N4 needs layer for highlighting
-            tag += '<ilayer id="a.%s"><a class="maplink" onmouseover="highlightPair(\'%s\', true)" onmouseout="highlightPair(\'%s\', false)" href="%s" %s'%(id,id,id,link,targetattr)
+            tag += '<ilayer id="a.%s"><a class="maplink" onmouseover="highlightPair(\'%s\', true)" onmouseout="highlightPair(\'%s\', false)" %s %s'%(id,id,id,href,targetattr)
             tag += ">" + text + "</a></ilayer>"
         else:
             # a-element
-            tag = '<a id="a.%s" class="maplink" onmouseover="highlightPair(\'%s\', true)" onmouseout="highlightPair(\'%s\', false)" href="%s" %s'%(id,id,id,link,targetattr)
+            tag = '<a id="a.%s" class="maplink" onmouseover="highlightPair(\'%s\', true)" onmouseout="highlightPair(\'%s\', false)" %s %s'%(id,id,id,href,targetattr)
             if tiptext:
                 tag += ' title="%s"'%tiptext
             tag += ">" + text + "</a>"
@@ -450,6 +497,17 @@ class ECHO_basis:
         bt = BrowserCheck(self)
         id = ob.getFullId()
         link = ob.getLinkId()
+        url = ob.getTargetUrl()
+        if url == "":
+            # ECHOResource with empty link -> no link
+            href = 'href="#" onclick="return false;"'
+        else:
+            href = 'href="%s"'%ob.getLinkId()
+        
+        if target is None:
+            targetattr = ""
+        else:
+            targetattr = 'target="%s"'%target
         tiptext = ob.getTip()
         tag = ""
 
@@ -475,7 +533,7 @@ class ECHO_basis:
                 
                 if float(rot) < 0:
                     marksrc = circlesrc
-                tag += '<a href="%s"><img border="0" src="%s&rot=%s" /></a>'%(link,marksrc,rot)
+                tag += '<a %s><img border="0" src="%s&rot=%s" /></a>'%(href,marksrc,rot)
             elif ob.isTypeText():
                 # N4 - Text
                 tag += '<div id="t.%s" class="maptext"'%(id)
@@ -484,7 +542,7 @@ class ECHO_basis:
                 tag += '</div>'
             else:
                 # N4 - Area
-                tag += '<a href="%s"><img border="0" width="1000" height="1000" src="trans_img"'%(link)
+                tag += '<a %s><img border="0" width="1000" height="1000" src="trans_img"'%(href)
                 if tiptext:
                     tag += ' alt="%s"'%tiptext
                 tag += ' /></a>'
@@ -493,7 +551,7 @@ class ECHO_basis:
             #
             # (more or less) DOM capable browser
             #
-            tag = '<a id="b.%s" class="mapmarklink" onmouseover="highlightPair(\'%s\', true)" onmouseout="highlightPair(\'%s\', false)" href="%s" target="%s">'%(id,id,id,link,target)
+            tag = '<a id="b.%s" class="mapmarklink" onmouseover="highlightPair(\'%s\', true)" onmouseout="highlightPair(\'%s\', false)" %s %s>'%(id,id,id,href,targetattr)
             if ob.isTypeArrow():
                 # DOM - Arrow
                 rot = ob.angle
@@ -596,7 +654,17 @@ def readFieldFromXML(meta_url,parent,fie
 
         return getText(field[0].childNodes)
         
-        
+def readFieldFromXML_xpath(meta_url,xpath):
+    """xpath auf meta_url"""
+    #logging.debug("try to parse:"+meta_url)
+    #logging.debug("Xtry to parse xpath:"+xpath)
+    doc = amara.parse(meta_url)
+    #logging.debug("have:"+doc.xml())
+    node= doc.xml_xpath(xpath)
+    if node is None:
+        return None
+    
+    return unicode(node[0])
               
 def urlopen(url):
         """urlopen mit timeout"""
@@ -765,7 +833,7 @@ def reloadMetaDataFromStorage(self,RESPO
 
             return ret
     
-def getRDFDescription(self,linkURL,urn=None,nameDef=None,typeName=None):
+def getRDFDescription(self,linkURL,urn=None,nameDef=None,typeName=None,ap=""):
             """rdf"""
             
             ret=""
@@ -775,7 +843,14 @@ def getRDFDescription(self,linkURL,urn=N
             clickable="""<ECHONAVIGATION:linkClickable>%s</ECHONAVIGATION:linkClickable>"""
             #link="""<ECHONAVIGATION:link RDF:about="%s"/>"""
             type="""<ECHONAVIGATION:type>%s</ECHONAVIGATION:type>"""
-            #xlink="""<ECHONAVIGATION:xlink xlink:href="%s"/>"""        
+            
+            #xlink="""<ECHONAVIGATION:xlink xlink:href="%s"/>"""      
+            
+            if ap=="":
+                ap2=""
+            else:
+                ap2 = """<MPIWG:archive-path>%s</MPIWG:archive-path>"""%ap
+            
             if not urn:
                     #urn="urn:"+re.sub('/',':',self.absolute_url())
                     urn=self.absolute_url()
@@ -802,8 +877,9 @@ def getRDFDescription(self,linkURL,urn=N
             else:
                     type2=type%typeName
             
+          
             #ret=about2+"\n"+name2+"\n"+link2+"\n"+type2+"\n"+clickable2+"\n</RDF:Description>"
-            ret=about2+"\n"+name2+"\n"+type2+"\n"+clickable2+"\n</RDF:Description>"
+            ret=about2+"\n"+name2+"\n"+type2+"\n"+clickable2+"\n"+ap2+"\n</RDF:Description>"
             return ret
     
 def getCopyrightsFromForm(self,argv): 
@@ -1236,6 +1312,21 @@ class MapArea(SimpleItem):
                 return self.aq_parent.label or self.aq_parent.id
         return self.label
 
+    def getTargetUrl(self):
+        """returns the URL of the linked object"""
+        if hasattr(self, 'aq_parent'):
+            p = self.aq_parent
+            # ECHOResource and ECHOLink have 'link' attribute
+            if hasattr(p, 'link'):
+                if p.link is None:
+                    # return empty string for empty link
+                    return ""
+                else:
+                    return p.link
+                
+        # return None for unknown type
+        return None
+
     def setLabel(self, label):
         """sets the label"""
         self.label = label