#
# Copyright (c) 2001 Bizar Software Pty Ltd (http://www.bizarsoftware.com.au/)
# This module is free software, and you may redistribute it and/or modify
# under the same terms as Python, so long as this copyright message and
# disclaimer are retained in their original form.
#
# IN NO EVENT SHALL BIZAR SOFTWARE PTY LTD BE LIABLE TO ANY PARTY FOR
# DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING
# OUT OF THE USE OF THIS CODE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
# BIZAR SOFTWARE PTY LTD SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
# BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE.  THE CODE PROVIDED HEREUNDER IS ON AN "AS IS"
# BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
# SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
# 
# $Id: htmltemplate.py,v 1.24 2001-09-27 06:45:58 richard Exp $

import os, re, StringIO, urllib, cgi, errno

import hyperdb, date

class Base:
    def __init__(self, db, templates, classname, nodeid=None, form=None,
            filterspec=None):
        # TODO: really not happy with the way templates is passed on here
        self.db, self.templates = db, templates
        self.classname, self.nodeid = classname, nodeid
        self.form, self.filterspec = form, filterspec
        self.cl = self.db.classes[self.classname]
        self.properties = self.cl.getprops()

class Plain(Base):
    ''' display a String property directly;

        display a Date property in a specified time zone with an option to
        omit the time from the date stamp;

        for a Link or Multilink property, display the key strings of the
        linked nodes (or the ids if the linked class has no key property)
    '''
    def __call__(self, property, escape=0):
        if not self.nodeid and self.form is None:
            return '[Field: not called from item]'
        propclass = self.properties[property]
        if self.nodeid:
            value = self.cl.get(self.nodeid, property)
        else:
            # TODO: pull the value from the form
            if isinstance(propclass, hyperdb.Multilink): value = []
            else: value = ''
        if isinstance(propclass, hyperdb.String):
            if value is None: value = ''
            else: value = str(value)
        elif isinstance(propclass, hyperdb.Date):
            value = str(value)
        elif isinstance(propclass, hyperdb.Interval):
            value = str(value)
        elif isinstance(propclass, hyperdb.Link):
            linkcl = self.db.classes[propclass.classname]
            k = linkcl.labelprop()
            if value: value = str(linkcl.get(value, k))
            else: value = '[unselected]'
        elif isinstance(propclass, hyperdb.Multilink):
            linkcl = self.db.classes[propclass.classname]
            k = linkcl.labelprop()
            value = ', '.join([linkcl.get(i, k) for i in value])
        else:
            s = 'Plain: bad propclass "%s"'%propclass
        if escape:
            return cgi.escape(value)
        return value

class Field(Base):
    ''' display a property like the plain displayer, but in a text field
        to be edited
    '''
    def __call__(self, property, size=None, height=None, showid=0):
        if not self.nodeid and self.form is None and self.filterspec is None:
            return '[Field: not called from item]'
        propclass = self.properties[property]
        if self.nodeid:
            value = self.cl.get(self.nodeid, property, None)
            # TODO: remove this from the code ... it's only here for
            # handling schema changes, and they should be handled outside
            # of this code...
            if isinstance(propclass, hyperdb.Multilink) and value is None:
                value = []
        elif self.filterspec is not None:
            if isinstance(propclass, hyperdb.Multilink):
                value = self.filterspec.get(property, [])
            else:
                value = self.filterspec.get(property, '')
        else:
            # TODO: pull the value from the form
            if isinstance(propclass, hyperdb.Multilink): value = []
            else: value = ''
        if (isinstance(propclass, hyperdb.String) or
                isinstance(propclass, hyperdb.Date) or
                isinstance(propclass, hyperdb.Interval)):
            size = size or 30
            if value is None:
                value = ''
            else:
                value = cgi.escape(value)
                value = '"'.join(value.split('"'))
            s = '<input name="%s" value="%s" size="%s">'%(property, value, size)
        elif isinstance(propclass, hyperdb.Link):
            linkcl = self.db.classes[propclass.classname]
            l = ['<select name="%s">'%property]
            k = linkcl.labelprop()
            for optionid in linkcl.list():
                option = linkcl.get(optionid, k)
                s = ''
                if optionid == value:
                    s = 'selected '
                if showid:
                    lab = '%s%s: %s'%(propclass.classname, optionid, option)
                else:
                    lab = option
                if size is not None and len(lab) > size:
                    lab = lab[:size-3] + '...'
                l.append('<option %svalue="%s">%s</option>'%(s, optionid, lab))
            l.append('</select>')
            s = '\n'.join(l)
        elif isinstance(propclass, hyperdb.Multilink):
            linkcl = self.db.classes[propclass.classname]
            list = linkcl.list()
            height = height or min(len(list), 7)
            l = ['<select multiple name="%s" size="%s">'%(property, height)]
            k = linkcl.labelprop()
            for optionid in list:
                option = linkcl.get(optionid, k)
                s = ''
                if optionid in value:
                    s = 'selected '
                if showid:
                    lab = '%s%s: %s'%(propclass.classname, optionid, option)
                else:
                    lab = option
                if size is not None and len(lab) > size:
                    lab = lab[:size-3] + '...'
                l.append('<option %svalue="%s">%s</option>'%(s, optionid, lab))
            l.append('</select>')
            s = '\n'.join(l)
        else:
            s = 'Plain: bad propclass "%s"'%propclass
        return s

class Menu(Base):
    ''' for a Link property, display a menu of the available choices
    '''
    def __call__(self, property, size=None, height=None, showid=0):
        propclass = self.properties[property]
        if self.nodeid:
            value = self.cl.get(self.nodeid, property)
        else:
            # TODO: pull the value from the form
            if isinstance(propclass, hyperdb.Multilink): value = []
            else: value = None
        if isinstance(propclass, hyperdb.Link):
            linkcl = self.db.classes[propclass.classname]
            l = ['<select name="%s">'%property]
            k = linkcl.labelprop()
            for optionid in linkcl.list():
                option = linkcl.get(optionid, k)
                s = ''
                if optionid == value:
                    s = 'selected '
                l.append('<option %svalue="%s">%s</option>'%(s, optionid, option))
            l.append('</select>')
            return '\n'.join(l)
        if isinstance(propclass, hyperdb.Multilink):
            linkcl = self.db.classes[propclass.classname]
            list = linkcl.list()
            height = height or min(len(list), 7)
            l = ['<select multiple name="%s" size="%s">'%(property, height)]
            k = linkcl.labelprop()
            for optionid in list:
                option = linkcl.get(optionid, k)
                s = ''
                if optionid in value:
                    s = 'selected '
                if showid:
                    lab = '%s%s: %s'%(propclass.classname, optionid, option)
                else:
                    lab = option
                if size is not None and len(lab) > size:
                    lab = lab[:size-3] + '...'
                l.append('<option %svalue="%s">%s</option>'%(s, optionid, option))
            l.append('</select>')
            return '\n'.join(l)
        return '[Menu: not a link]'

#XXX deviates from spec
class Link(Base):
    ''' for a Link or Multilink property, display the names of the linked
        nodes, hyperlinked to the item views on those nodes
        for other properties, link to this node with the property as the text
    '''
    def __call__(self, property=None, **args):
        if not self.nodeid and self.form is None:
            return '[Link: not called from item]'
        propclass = self.properties[property]
        if self.nodeid:
            value = self.cl.get(self.nodeid, property)
        else:
            if isinstance(propclass, hyperdb.Multilink): value = []
            else: value = ''
        if isinstance(propclass, hyperdb.Link):
            linkname = propclass.classname
            if value is None:
                return '[not assigned]'
            linkcl = self.db.classes[linkname]
            k = linkcl.labelprop()
            linkvalue = linkcl.get(value, k)
            return '<a  target="_top" href="/newspapers?url=%s%s">%s</a>'%(linkname, value, linkvalue)
        if isinstance(propclass, hyperdb.Multilink):
            linkname = propclass.classname
            linkcl = self.db.classes[linkname]
            k = linkcl.labelprop()
            l = []
            for value in value:
                linkvalue = linkcl.get(value, k)
                l.append('<a  target="_top" href="/newspapers?url=%s%s">%s</a>'%(linkname, value, linkvalue))
            return ', '.join(l)
        return '<a  target="_top" href="/newspapers?url=%s%s">%s</a>'%(self.classname, self.nodeid, value)

class Count(Base):
    ''' for a Multilink property, display a count of the number of links in
        the list
    '''
    def __call__(self, property, **args):
        if not self.nodeid:
            return '[Count: not called from item]'
        propclass = self.properties[property]
        value = self.cl.get(self.nodeid, property)
        if isinstance(propclass, hyperdb.Multilink):
            return str(len(value))
        return '[Count: not a Multilink]'

# XXX pretty is definitely new ;)
class Reldate(Base):
    ''' display a Date property in terms of an interval relative to the
        current date (e.g. "+ 3w", "- 2d").

        with the 'pretty' flag, make it pretty
    '''
    def __call__(self, property, pretty=0):
        if not self.nodeid and self.form is None:
            return '[Reldate: not called from item]'
        propclass = self.properties[property]
        if isinstance(not propclass, hyperdb.Date):
            return '[Reldate: not a Date]'
        if self.nodeid:
            value = self.cl.get(self.nodeid, property)
        else:
            value = date.Date('.')
        interval = value - date.Date('.')
        if pretty:
            if not self.nodeid:
                return 'now'
            pretty = interval.pretty()
            if pretty is None:
                pretty = value.pretty()
            return pretty
        return str(interval)

class Download(Base):
    ''' show a Link("file") or Multilink("file") property using links that
        allow you to download files
    '''
    def __call__(self, property, **args):
        if not self.nodeid:
            return '[Download: not called from item]'
        propclass = self.properties[property]
        value = self.cl.get(self.nodeid, property)
        if isinstance(propclass, hyperdb.Link):
            linkcl = self.db.classes[propclass.classname]
            linkvalue = linkcl.get(value, k)
            return '<a  target="_top" href="/newspapers?url=%s%s">%s</a>'%(linkcl, value, linkvalue)
        if isinstance(propclass, hyperdb.Multilink):
            linkcl = self.db.classes[propclass.classname]
            l = []
            for value in value:
                linkvalue = linkcl.get(value, k)
                l.append('<a  target="_top" href="/newspapers?url=%s%s">%s</a>'%(linkcl, value, linkvalue))
            return ', '.join(l)
        return '[Download: not a link]'


class Checklist(Base):
    ''' for a Link or Multilink property, display checkboxes for the available
        choices to permit filtering
    '''
    def __call__(self, property, **args):
        propclass = self.properties[property]
        if self.nodeid:
            value = self.cl.get(self.nodeid, property)
        elif self.filterspec is not None:
            value = self.filterspec.get(property, [])
        else:
            value = []
        if (isinstance(propclass, hyperdb.Link) or
                isinstance(propclass, hyperdb.Multilink)):
            linkcl = self.db.classes[propclass.classname]
            l = []
            k = linkcl.labelprop()
            for optionid in linkcl.list():
                option = linkcl.get(optionid, k)
                if optionid in value or option in value:
                    checked = 'checked'
                else:
                    checked = ''
                l.append('%s:<input type="checkbox" %s name="%s" value="%s">'%(
                    option, checked, property, option))
            return '\n'.join(l)
        return '[Checklist: not a link]'

class Note(Base):
    ''' display a "note" field, which is a text area for entering a note to
        go along with a change. 
    '''
    def __call__(self, rows=5, cols=80):
       # TODO: pull the value from the form
        return '<textarea name="__note" rows=%s cols=%s></textarea>'%(rows,
            cols)

# XXX new function
class List(Base):
    ''' list the items specified by property using the standard index for
        the class
    '''
    def __call__(self, property, reverse=0):
        propclass = self.properties[property]
        if isinstance(not propclass, hyperdb.Multilink):
            return '[List: not a Multilink]'
        fp = StringIO.StringIO()
        value = self.cl.get(self.nodeid, property)
        if reverse:
            value.reverse()
        # TODO: really not happy with the way templates is passed on here
        index(fp, self.templates, self.db, propclass.classname, nodeids=value,
            show_display_form=0)
        return fp.getvalue()

# XXX new function
class History(Base):
    ''' list the history of the item
    '''
    def __call__(self, **args):
        if self.nodeid is None:
            return "[History: node doesn't exist]"

        l = ['<table width=100% border=0 cellspacing=0 cellpadding=2>',
            '<tr class="list-header">',
            '<td><span class="list-item"><strong>Date</strong></span></td>',
            '<td><span class="list-item"><strong>User</strong></span></td>',
            '<td><span class="list-item"><strong>Action</strong></span></td>',
            '<td><span class="list-item"><strong>Args</strong></span></td>']

        for id, date, user, action, args in self.cl.history(self.nodeid):
            l.append('<tr><td>%s</td><td>%s</td><td>%s</td><td>%s</td></tr>'%(
               date, user, action, args))
        l.append('</table>')
        return '\n'.join(l)

# XXX new function
class Submit(Base):
    ''' add a submit button for the item
    '''
    def __call__(self):
        if self.nodeid:
            return '<input type="submit" value="Submit Changes">'
        elif self.form is not None:
            return '<input type="submit" value="Submit New Entry">'
        else:
            return '[Submit: not called from item]'


#
#   INDEX TEMPLATES
#
class IndexTemplateReplace:
    def __init__(self, globals, locals, props):
        self.globals = globals
        self.locals = locals
        self.props = props

    def go(self, text, replace=re.compile(
            r'((<property\s+name="(?P<name>[^>]+)">(?P<text>.+?)</property>)|'
            r'(?P<display><display\s+call="(?P<command>[^"]+)">))', re.I|re.S)):
        return replace.sub(self, text)

    def __call__(self, m, filter=None, columns=None, sort=None, group=None):
        if m.group('name'):
            if m.group('name') in self.props:
                text = m.group('text')
                replace = IndexTemplateReplace(self.globals, {}, self.props)
                return replace.go(m.group('text'))
            else:
                return ''
        if m.group('display'):
            command = m.group('command')
            return eval(command, self.globals, self.locals)
        print '*** unhandled match', m.groupdict()

def sortby(sort_name, columns, filter, sort, group, filterspec):
    l = []
    w = l.append
    for k, v in filterspec.items():
        k = urllib.quote(k)
        if type(v) == type([]):
            w('%s=%s'%(k, ','.join(map(urllib.quote, v))))
        else:
            w('%s=%s'%(k, urllib.quote(v)))
    if columns:
        w(':columns=%s'%','.join(map(urllib.quote, columns)))
    if filter:
        w(':filter=%s'%','.join(map(urllib.quote, filter)))
    if group:
        w(':group=%s'%','.join(map(urllib.quote, group)))
    m = []
    s_dir = ''
    for name in sort:
        dir = name[0]
        if dir == '-':
            name = name[1:]
        else:
            dir = ''
        if sort_name == name:
            if dir == '-':
                s_dir = ''
            else:
                s_dir = '-'
        else:
            m.append(dir+urllib.quote(name))
    m.insert(0, s_dir+urllib.quote(sort_name))
    # so things don't get completely out of hand, limit the sort to two columns
    w(':sort=%s'%','.join(m[:2]))
    return '&'.join(l)

def index(client, templates, db, classname, filterspec={}, filter=[],
        columns=[], sort=[], group=[], show_display_form=1, nodeids=None,
        col_re=re.compile(r'<property\s+name="([^>]+)">')):
    globals = {
        'plain': Plain(db, templates, classname, filterspec=filterspec),
        'field': Field(db, templates, classname, filterspec=filterspec),
        'menu': Menu(db, templates, classname, filterspec=filterspec),
        'link': Link(db, templates, classname, filterspec=filterspec),
        'count': Count(db, templates, classname, filterspec=filterspec),
        'reldate': Reldate(db, templates, classname, filterspec=filterspec),
        'download': Download(db, templates, classname, filterspec=filterspec),
        'checklist': Checklist(db, templates, classname, filterspec=filterspec),
        'list': List(db, templates, classname, filterspec=filterspec),
        'history': History(db, templates, classname, filterspec=filterspec),
        'submit': Submit(db, templates, classname, filterspec=filterspec),
        'note': Note(db, templates, classname, filterspec=filterspec)
    }
    cl = db.classes[classname]
    properties = cl.getprops()
    w = client.write
    w('<form>')

    try:
        template = open(os.path.join(templates, classname+'.filter')).read()
        all_filters = col_re.findall(template)
    except IOError, error:
        if error.errno != errno.ENOENT: raise
        template = None
        all_filters = []
    if template and filter:
        # display the filter section
        w('<table width=100% border=0 cellspacing=0 cellpadding=2>')
        w('<tr class="location-bar">')
        w(' <th align="left" colspan="2">Filter specification...</th>')
        w('</tr>')
        replace = IndexTemplateReplace(globals, locals(), filter)
        w(replace.go(template))
        w('<tr class="location-bar"><td width="1%%">&nbsp;</td>')
        w('<td><input type="submit" value="Redisplay"></td></tr>')
        w('</table>')

    # If the filters aren't being displayed, then hide their current
    # value in the form
    if not filter:
        for k, v in filterspec.items():
            if type(v) == type([]): v = ','.join(v)
            w('<input type="hidden" name="%s" value="%s">'%(k, v))

    # make sure that the sorting doesn't get lost either
    if sort:
        w('<input type="hidden" name=":sort" value="%s">'%','.join(sort))

    # XXX deviate from spec here ...
    # load the index section template and figure the default columns from it
    template = open(os.path.join(templates, classname+'.index')).read()
    all_columns = col_re.findall(template)
    if not columns:
        columns = []
        for name in all_columns:
            columns.append(name)
    else:
        # re-sort columns to be the same order as all_columns
        l = []
        for name in all_columns:
            if name in columns:
                l.append(name)
        columns = l

    # now display the index section
    w('<table width=100% border=0 cellspacing=0 cellpadding=2>\n')
    w('<tr class="list-header">\n')
    for name in columns:
        cname = name.capitalize()
        if show_display_form:
            anchor = "%s?%s"%(classname, sortby(name, columns, filter,
                sort, group, filterspec))
            w('<td><span class="list-header"><a  target="_top" href="/newspapers?url=%s">%s</a></span></td>\n'%(
                anchor, cname))
        else:
            w('<td><span class="list-header">%s</span></td>\n'%cname)
    w('</tr>\n')

    # this stuff is used for group headings - optimise the group names
    old_group = None
    group_names = []
    if group:
        for name in group:
            if name[0] == '-': group_names.append(name[1:])
            else: group_names.append(name)

    # now actually loop through all the nodes we get from the filter and
    # apply the template
    if nodeids is None:
        nodeids = cl.filter(filterspec, sort, group)
    for nodeid in nodeids:
        # check for a group heading
        if group_names:
            this_group = [cl.get(nodeid, name) for name in group_names]
            if this_group != old_group:
                l = []
                for name in group_names:
                    prop = properties[name]
                    if isinstance(prop, hyperdb.Link):
                        group_cl = db.classes[prop.classname]
                        key = group_cl.getkey()
                        value = cl.get(nodeid, name)
                        if value is None:
                            l.append('[unselected %s]'%prop.classname)
                        else:
                            l.append(group_cl.get(cl.get(nodeid, name), key))
                    elif isinstance(prop, hyperdb.Multilink):
                        group_cl = db.classes[prop.classname]
                        key = group_cl.getkey()
                        for value in cl.get(nodeid, name):
                            l.append(group_cl.get(value, key))
                    else:
                        value = cl.get(nodeid, name)
                        if value is None:
                            value = '[empty %s]'%name
                        l.append(value)
                w('<tr class="section-bar">'
                  '<td align=middle colspan=%s><strong>%s</strong></td></tr>'%(
                    len(columns), ', '.join(l)))
                old_group = this_group

        # display this node's row
        for value in globals.values():
            if hasattr(value, 'nodeid'):
                value.nodeid = nodeid
        replace = IndexTemplateReplace(globals, locals(), columns)
        w(replace.go(template))

    w('</table>')

    if not show_display_form:
        return

    # now add in the filter/columns/group/etc config table form
    w('<p>')
    w('<table width=100% border=0 cellspacing=0 cellpadding=2>\n')
    names = []
    for name in cl.getprops().keys():
        if name in all_filters or name in all_columns:
            names.append(name)
    w('<tr class="location-bar">')
    w('<th align="left" colspan=%s>View customisation...</th></tr>\n'%
        (len(names)+1))
    w('<tr class="location-bar"><th>&nbsp;</th>')
    for name in names:
        w('<th>%s</th>'%name.capitalize())
    w('</tr>\n')

    # filter
    if all_filters:
        w('<tr><th width="1%" align=right class="location-bar">Filters</th>\n')
        for name in names:
            if name not in all_filters:
                w('<td>&nbsp;</td>')
                continue
            if name in filter: checked=' checked'
            else: checked=''
            w('<td align=middle>\n')
            w(' <input type="checkbox" name=":filter" value="%s" %s></td>\n'%(
                name, checked))
        w('</tr>\n')

    # columns
    if all_columns:
        w('<tr><th width="1%" align=right class="location-bar">Columns</th>\n')
        for name in names:
            if name not in all_columns:
                w('<td>&nbsp;</td>')
                continue
            if name in columns: checked=' checked'
            else: checked=''
            w('<td align=middle>\n')
            w(' <input type="checkbox" name=":columns" value="%s" %s></td>\n'%(
                name, checked))
        w('</tr>\n')

        # group
        w('<tr><th width="1%" align=right class="location-bar">Grouping</th>\n')
        for name in names:
            prop = properties[name]
            if name not in all_columns:
                w('<td>&nbsp;</td>')
                continue
            if name in group: checked=' checked'
            else: checked=''
            w('<td align=middle>\n')
            w(' <input type="checkbox" name=":group" value="%s" %s></td>\n'%(
                name, checked))
        w('</tr>\n')

    w('<tr class="location-bar"><td width="1%">&nbsp;</td>')
    w('<td colspan="%s">'%len(names))
    w('<input type="submit" value="Redisplay"></td></tr>\n')
    w('</table>\n')
    w('</form>\n')


#
#   ITEM TEMPLATES
#
class ItemTemplateReplace:
    def __init__(self, globals, locals, cl, nodeid):
        self.globals = globals
        self.locals = locals
        self.cl = cl
        self.nodeid = nodeid

    def go(self, text, replace=re.compile(
            r'((<property\s+name="(?P<name>[^>]+)">(?P<text>.+?)</property>)|'
            r'(?P<display><display\s+call="(?P<command>[^"]+)">))', re.I|re.S)):
        return replace.sub(self, text)

    def __call__(self, m, filter=None, columns=None, sort=None, group=None):
        if m.group('name'):
            if self.nodeid and self.cl.get(self.nodeid, m.group('name')):
                replace = ItemTemplateReplace(self.globals, {}, self.cl,
                    self.nodeid)
                return replace.go(m.group('text'))
            else:
                return ''
        if m.group('display'):
            command = m.group('command')
            return eval(command, self.globals, self.locals)
        print '*** unhandled match', m.groupdict()

def item(client, templates, db, classname, nodeid, replace=re.compile(
            r'((?P<prop><property\s+name="(?P<propname>[^>]+)">)|'
            r'(?P<endprop></property>)|'
            r'(?P<display><display\s+call="(?P<command>[^"]+)">))', re.I)):

    globals = {
        'plain': Plain(db, templates, classname, nodeid),
        'field': Field(db, templates, classname, nodeid),
        'menu': Menu(db, templates, classname, nodeid),
        'link': Link(db, templates, classname, nodeid),
        'count': Count(db, templates, classname, nodeid),
        'reldate': Reldate(db, templates, classname, nodeid),
        'download': Download(db, templates, classname, nodeid),
        'checklist': Checklist(db, templates, classname, nodeid),
        'list': List(db, templates, classname, nodeid),
        'history': History(db, templates, classname, nodeid),
        'submit': Submit(db, templates, classname, nodeid),
        'note': Note(db, templates, classname, nodeid)
    }

    cl = db.classes[classname]
    properties = cl.getprops()

    if properties.has_key('type') and properties.has_key('content'):
        pass
        # XXX we really want to return this as a downloadable...
        #  currently I handle this at a higher level by detecting 'file'
        #  designators...

    w = client.write
    w('<form action="%s%s">'%(classname, nodeid))
    s = open(os.path.join(templates, classname+'.item')).read()
    replace = ItemTemplateReplace(globals, locals(), cl, nodeid)
    w(replace.go(s))
    w('</form>')


def newitem(client, templates, db, classname, form, replace=re.compile(
            r'((?P<prop><property\s+name="(?P<propname>[^>]+)">)|'
            r'(?P<endprop></property>)|'
            r'(?P<display><display\s+call="(?P<command>[^"]+)">))', re.I)):
    globals = {
        'plain': Plain(db, templates, classname, form=form),
        'field': Field(db, templates, classname, form=form),
        'menu': Menu(db, templates, classname, form=form),
        'link': Link(db, templates, classname, form=form),
        'count': Count(db, templates, classname, form=form),
        'reldate': Reldate(db, templates, classname, form=form),
        'download': Download(db, templates, classname, form=form),
        'checklist': Checklist(db, templates, classname, form=form),
        'list': List(db, templates, classname, form=form),
        'history': History(db, templates, classname, form=form),
        'submit': Submit(db, templates, classname, form=form),
        'note': Note(db, templates, classname, form=form)
    }

    cl = db.classes[classname]
    properties = cl.getprops()

    w = client.write
    try:
        s = open(os.path.join(templates, classname+'.newitem')).read()
    except:
        s = open(os.path.join(templates, classname+'.item')).read()
    w('<form action="new%s" method="POST" enctype="multipart/form-data">'%classname)
    for key in form.keys():
        if key[0] == ':':
            value = form[key].value
            if type(value) != type([]): value = [value]
            for value in value:
                w('<input type="hidden" name="%s" value="%s">'%(key, value))
    replace = ItemTemplateReplace(globals, locals(), None, None)
    w(replace.go(s))
    w('</form>')

#
# $Log: not supported by cvs2svn $
# Revision 1.23  2001/09/10 09:47:18  richard
# Fixed bug in the generation of links to Link/Multilink in indexes.
#   (thanks Hubert Hoegl)
# Added AssignedTo to the "classic" schema's item page.
#
# Revision 1.22  2001/08/30 06:01:17  richard
# Fixed missing import in mailgw :(
#
# Revision 1.21  2001/08/16 07:34:59  richard
# better CGI text searching - but hidden filter fields are disappearing...
#
# Revision 1.20  2001/08/15 23:43:18  richard
# Fixed some isFooTypes that I missed.
# Refactored some code in the CGI code.
#
# Revision 1.19  2001/08/12 06:32:36  richard
# using isinstance(blah, Foo) now instead of isFooType
#
# Revision 1.18  2001/08/07 00:24:42  richard
# stupid typo
#
# Revision 1.17  2001/08/07 00:15:51  richard
# Added the copyright/license notice to (nearly) all files at request of
# Bizar Software.
#
# Revision 1.16  2001/08/01 03:52:23  richard
# Checklist was using wrong name.
#
# Revision 1.15  2001/07/30 08:12:17  richard
# Added time logging and file uploading to the templates.
#
# Revision 1.14  2001/07/30 06:17:45  richard
# Features:
#  . Added ability for cgi newblah forms to indicate that the new node
#    should be linked somewhere.
# Fixed:
#  . Fixed the agument handling for the roundup-admin find command.
#  . Fixed handling of summary when no note supplied for newblah. Again.
#  . Fixed detection of no form in htmltemplate Field display.
#
# Revision 1.13  2001/07/30 02:37:53  richard
# Temporary measure until we have decent schema migration.
#
# Revision 1.12  2001/07/30 01:24:33  richard
# Handles new node display now.
#
# Revision 1.11  2001/07/29 09:31:35  richard
# oops
#
# Revision 1.10  2001/07/29 09:28:23  richard
# Fixed sorting by clicking on column headings.
#
# Revision 1.9  2001/07/29 08:27:40  richard
# Fixed handling of passed-in values in form elements (ie. during a
# drill-down)
#
# Revision 1.8  2001/07/29 07:01:39  richard
# Added vim command to all source so that we don't get no steenkin' tabs :)
#
# Revision 1.7  2001/07/29 05:36:14  richard
# Cleanup of the link label generation.
#
# Revision 1.6  2001/07/29 04:06:42  richard
# Fixed problem in link display when Link value is None.
#
# Revision 1.5  2001/07/28 08:17:09  richard
# fixed use of stylesheet
#
# Revision 1.4  2001/07/28 07:59:53  richard
# Replaced errno integers with their module values.
# De-tabbed templatebuilder.py
#
# Revision 1.3  2001/07/25 03:39:47  richard
# Hrm - displaying links to classes that don't specify a key property. I've
# got it defaulting to 'name', then 'title' and then a "random" property (first
# one returned by getprops().keys().
# Needs to be moved onto the Class I think...
#
# Revision 1.2  2001/07/22 12:09:32  richard
# Final commit of Grande Splite
#
# Revision 1.1  2001/07/22 11:58:35  richard
# More Grande Splite
#
#
# vim: set filetype=python ts=4 sw=4 et si