Ticket #6071: form_system.py

#-*-coding: utf-8 -*-
"""
/dms/form_system.py

.. enthaelt Modifikationen des Django-Formular-Systems
         Django content Management System

Hans Rauch
hans.rauch@gmx.net

Die Programme des dms-Systems koennen frei genutzt und den spezifischen
Beduerfnissen entsprechend angepasst werden.

0.01  31.01.2007  Beginn der Dokumentation
0.02  13.09.2007  Adresse der Hilfeseiten
0.03  14.09.2007  Fehlerkorrektur fuer Hilfefenster
"""

import  string, re
from    settings import HELP_URL

from django.utils.encoding  import smart_unicode

from django.utils.translation import ugettext as _

from dms.encode_decode  import encode_html

# -----------------------------------------------------
class form_system :

  def encode(self, text):
    text = string.replace(text, '\n', ' ')
    text = string.replace(text, "'", '"')
    text = string.replace(text, '"', '"')
    text = encode_html(text)
    return text

  def getJsHelp(self, rHelp, text, title, rAnchor):
    """ zeigt Hilfe in einem PopUp-Fenster an """
    if string.strip(text) == '':
      return ''
    text  = self.encode(text)
    title = _('Kurzhilfe: ') + self.encode(title)
    #url = 'JavaScript:showHelp(\'' + rHelp + '#' + rAnchor + '\');" '
    url = "JavaScript:showHelp('%s#%s');\" " % (rHelp, rAnchor)
    #url += 'class="overlay" \n'
    url += 'onMouseOver="return overlib('
    url += "'" + text + "'"
    url += ",CAPTION,'" + title + "',TEXTSIZE,2,CAPTIONSIZE,2,SNAPX,16,SNAPY,4," 
    url += 'ol_vpos=ABOVE,ol_fgcolor=\'#f0f0ff\',ol_width=400)" onMouseOut="nd();"'

    return '&nbsp;<a href="' + url + '>...?</a>\n'

  def modify_form ( self, rId, rForm, valign, max_cols, rError='' ) :
    """ """
    def convert_date(s):
      cStart = 'value="'
      nLen = len(cStart)
      nStart  = string.find(s, cStart)
      nEnd    = min(string.find(s, '"', nStart+nLen+1), string.find(s, ' ', nStart+nLen+1))
      n_end_2 = string.find(s, '"', nStart+nLen+1)
      d = s[nStart+nLen:nEnd]
      arr = string.splitfields(d, '-')
      if len(arr) == 3 :
        dGerman = u'%s.%s.%s' % (arr[2],arr[1],arr[0])
      else :
        dGerman = d
      return s[:nStart+nLen] + dGerman + s[n_end_2:] + """ <a href="javascript: void(0);"
   onclick="return getCalendar(document.form_input.id_""" + rId + """);"><img
   src="/dms_media/javascript/calendar/calendar.png" border="0" /></a>"""

    def convert_date_time(s):
      cStart = 'value="'
      nLen = len(cStart)
      nStart = string.find(s, cStart)
      nEnd   = string.find(s, '"', nStart+nLen+1)
      d = s[nStart+nLen:nEnd]
      a = string.splitfields(d, ' ')
      arr = string.splitfields(a[0], '-')
      if len(arr) == 3 :
        dGerman = u'%s.%s.%s' % (arr[2],arr[1],arr[0])
      else :
        dGerman = d
      dGerman += ' ' + a[1][:a[1].rfind(':')]  # Sekunden abschneiden
      return s[:nStart+nLen] + dGerman + s[nEnd:]

    myType = smart_unicode(type(rForm.field))
    nPos = string.rfind ( myType, '.' )
    myType = myType[nPos+1:-2]
    if rError:
      error = ''
      for err in rError:
        error += encode_html(err)
      form = smart_unicode(rForm) + '<br /><span class="red"><b>' + error + '</b></span>'
    else :
      form = smart_unicode(rForm)
    # --- soll das Eingabeobjekt horizontal angezeigt werden?
    if not valign and string.find(form, '<ul>') >= 0:
      form = string.replace(form, '<ul>', '')
      form = string.replace(form, '</ul>', '')
      form = string.replace(form, '<li>', '')
      form = string.replace(form, '</li>', '')
    if string.find(form, 'type="hidden"') >= 0:
      v = 'value="'
      obj = re.search(v+'.*?"', form, re.S)
      form += ' ' + form[obj.start()+len(v):obj.end()-1]
      form = form.replace('&lt;br /&gt;', '<br />')
      form = form.replace('&amp;', '&')
    #if not myType in ['DateField', 'DateTimeField']:
    if not myType in ['DateField']:
      return form
    if myType == 'DateTimeField':
      return convert_date_time(form)
    return convert_date(form)

  def get_form ( self, rFormList, rFormDict, app_name, rForm,
                       tab_cluster, valign, max_cols, show_errors):
    """ """
    from django.template.loader import get_template
    from django.template import Context
    h = get_template('app/form_header.html')
    hm = get_template('app/form_header_multiple.html')
    i = get_template('app/form_input.html')
    im = get_template('app/form_input_multiple.html')
    inf = get_template('app/form_info.html')
    t = get_template('app/form_table_start.html')
    my_help_url = HELP_URL + app_name + '/'
    if show_errors:
      my_errors = rForm.errors
    else:
      my_errors = {}
    c = Context ( {} )
    ret = t.render(c)
    for my_id in rFormList:
      if tab_cluster.has_key(my_id):
        my_data = tab_cluster[my_id]
        my_info = my_data[0]['title']
        my_cols = my_data[0]['cols']
        my_rows = my_data[0]['rows']
        my_show_cols = my_data[0]['show_cols']
        if my_data[0].has_key('valign'):
          my_valign = my_data[0]['valign']
        else:
          my_valign = valign
        my_cells = my_data[1]
        c = Context ( {} )
        ret += t.render(c)
        if my_info != '':
          c = Context ( { 'cols': 1+len(my_cols), 'info': my_info} )
          ret += inf.render(c)
        if my_show_cols:
          c = Context ( { 'headers': my_cols, } )
          ret += hm.render(c)
        n_row = 0
        for row in my_rows:
          if my_show_cols:
            inputs = []
            for c in my_cols:
              cell_id = my_cells[n_row]
              if my_errors.has_key(cell_id):
                err_info = my_errors[cell_id][0]
                my_form = self.modify_form(cell_id, rForm[cell_id],
                                           my_valign, max_cols, err_info)
              else :
                my_form = self.modify_form(cell_id, rForm[cell_id], my_valign, max_cols)
              inputs.append(my_form)
              n_row += 1
            c = Context ( { 'title'   : row,
                            'label'   : cell_id,
                            'inputs'  : inputs,
                            'max_cols': max_cols,
                          } )
            ret += im.render(c)
          else:
            inputs = []
            for c in my_cols:
              cell_id = my_cells[n_row]
              if my_errors.has_key(cell_id):
                err_info = my_errors[cell_id][0]
                my_form = self.modify_form(cell_id, rForm[cell_id],
                                           my_valign, max_cols, err_info)
              else :
                my_form = self.modify_form(cell_id, rForm[cell_id], my_valign, max_cols)
              inputs.append(my_form)
              n_row += 1
            c = Context ( { 'title'   : row,
                            'label'   : cell_id,
                            'inputs'  : inputs,
                            'max_cols': max_cols,
                          } )
            ret += im.render(c)
      else:
        form = rFormDict[my_id]
        if my_errors.has_key(my_id) :
          my_form = self.modify_form(my_id, rForm[my_id], valign, max_cols, my_errors[my_id])
        else :
          my_form = self.modify_form(my_id, rForm[my_id], valign, max_cols)
        c = Context ( { 'title'   : form['title'],
                        'label'   : my_id,
                        'input'   : my_form,
                        'help'    : self.getJsHelp(my_help_url, form['help'], 
                                                   form['title'], my_id),
                        'max_cols': max_cols,
                      } )
        ret += i.render(c)
    ret += '</table>\n'
    return ret