docs: def coerceType(self, ftype, value):
          """Returns unicode(value) after trying to coerce it into the SOLR field type.
  
          @param ftype(string) The SOLR field type for the value
          @param value(any) The value that is to be represented as Unicode text.
  
          """
          if value is None:
              return None
          if ftype == 'string':
              return str(value)
          elif ftype == 'text':
              return str(value)
          elif ftype == 'int':
              try:
                  v = int(value)
                  return str(v)
              except Exception:
                  return None
          elif ftype == 'float':
              try:
                  v = float(value)
                  return str(v)
              except Exception:
                  return None
          elif ftype == 'date':
              try:
                  v = datetime.datetime.strptime(value, '%b %d %Y %I:%M%p')
                  return v.isoformat()
              except Exception:
                  return None
          return str(value)