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added export function

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This commit is contained in:
Alexander Kryklia
2012-12-20 13:25:24 +02:00
parent 9bf1a6e271
commit d4b8a7bb54
1 changed files with 38 additions and 35 deletions
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73
common/lib/xmodule/xmodule/gst_module.py
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@@ -25,6 +25,8 @@ class GraphicalSliderToolModule(XModule):
js = {
'js': [
# 3rd party libraries used by graphic slider tool.
# TODO - where to store them - outside xmodule?
resource_string(__name__, 'js/src/graphical_slider_tool/jstat-1.0.0.min.js'),
resource_string(__name__, 'js/src/graphical_slider_tool/gst_main.js'),
@@ -44,32 +46,40 @@ class GraphicalSliderToolModule(XModule):
def __init__(self, system, location, definition, descriptor, instance_state=None,
shared_state=None, **kwargs):
"""
For XML file format please look at documentation.
For XML file format please look at documentation. TODO - receive
information where to store XML documentation.
"""
XModule.__init__(self, system, location, definition, descriptor,
instance_state, shared_state, **kwargs)
def get_html(self):
self.get_configuration()
""" Renders parameters to template. """
# these both will be used in class methods
self.html_id = self.location.html_id()
self.html_class = self.location.category
gst_html = self.substitute_controls(self.definition['render'].strip())
# import ipdb; ipdb.set_trace()
params = {
'gst_html': gst_html,
'gst_html': self.substitute_controls(self.definition['render']),
'element_id': self.html_id,
'element_class': self.html_class,
'configuration_json': self.configuration_json
'configuration_json': self.build_configuration_json()
}
self.content = (self.system.render_template(
'graphical_slider_tool.html', params))
# import ipdb; ipdb.set_trace()
return self.content
def substitute_controls(self, html_string):
""" Substitue control element via their divs.
Simple variant: slider and plot controls are not inside any tag.
""" Substitutes control elements via their divs.
TODO: change regexps to html parsing via beautiful soup or something
similar (aim : simpler support).
Args:
html_string: rendered html string with controls as xml tags
(<slider var="a"/>)
Returns:
html_string with control tags replaced by proper divs
(<slider var="a"/> -> <div class="....slider" > </div>)
"""
#substitute plot
plot_div = '<div class="{element_class}_plot" id="{element_id}_plot" \
@@ -98,8 +108,7 @@ class GraphicalSliderToolModule(XModule):
variables = [x['@var'] for x in variables]
else:
return html_string
# if variables[0] == 'v':
# import ipdb; ipdb.set_trace()
#substitute sliders
slider_div = '<div class="{element_class}_slider" \
id="{element_id}_slider_{var}" \
@@ -143,11 +152,9 @@ class GraphicalSliderToolModule(XModule):
# different id
instances = re.findall(r'<textbox\s+(?=[^<>]*var\=[\"\']' + var + '[\"\'])' \
+ r'[^<>]*/>', html_string, flags=re.UNICODE | re.DOTALL)
# import ipdb; ipdb.set_trace()
for input_def in instances: # for multiple inputs per var
input_index += 1
# extract var and readonly before style!
# import ipdb; ipdb.set_trace()
var_substring = re.search(r'(var\=[\"\']' + var + r'[\"\'])',
input_def).group()
input_def = input_def.replace(var_substring, '')
@@ -164,28 +171,28 @@ class GraphicalSliderToolModule(XModule):
style = style.groups()[0]
else:
style = ''
# import ipdb; ipdb.set_trace()
replacement = input_el.format(element_class=self.html_class,
element_id=self.html_id,
var=var, readonly=readonly, style=style,
input_index=input_index)
# import ipdb; ipdb.set_trace()
html_string = re.sub(r'<textbox\s+(?=[^<>]*var\=[\"\'](' + \
var + ')[\"\'])' + r'[^<>]*/>',
replacement, html_string, count=1, flags=re.UNICODE | re.DOTALL)
return html_string
def get_configuration(self):
"""Parse self.definition['configuration'] and transfer it to javascript
via json.
def build_configuration_json(self):
"""Creates json element from xml element (with aim to transfer later
directly to javascript via hidden field in template). Steps:
1. Convert xml tree to python dict.
2. Dump dict to json.
"""
# root added for interface compatibility with xmltodict.parse
# import ipdb; ipdb.set_trace()
self.configuration_json = json.dumps(
xmltodict.parse('<root class="' + self.location.category + '">' +
stringify_children(self.definition['configuration'])
+ '</root>'))
return self.configuration_json
# <root> added for interface compatibility with xmltodict.parse
# class added for javascript's part purposes
return json.dumps(xmltodict.parse('<root class="' + self.html_class +
'">' + self.definition['configuration'] + '</root>'))
class GraphicalSliderToolDescriptor(MakoModuleDescriptor, XmlDescriptor):
@@ -220,25 +227,21 @@ class GraphicalSliderToolDescriptor(MakoModuleDescriptor, XmlDescriptor):
def parse(k):
"""Assumes that xml_object has child k"""
return stringify_children(xml_object.xpath(k)[0])
return {
'render': parse('render'),
'configuration': xml_object.xpath('configuration')[0]
'configuration': parse('configuration')
}
def definition_to_xml(self, resource_fs):
'''Return an xml element representing this definition.
Not implemented'''
# import ipdb; ipdb.set_trace()
xml_object = etree.Element('gst')
'''Return an xml element representing this definition.'''
xml_object = etree.Element('graphical_slider_tool')
def add_child(k):
# child_str = '<{tag}>{body}</{tag}>'.format(tag=k, body=self.definition[k])
child_str = child.export_to_xml(resource_fs)
child_str = '<{tag}>{body}</{tag}>'.format(tag=k, body=self.definition[k])
child_node = etree.fromstring(child_str)
xml_object.append(child_node)
for child in self.get_children():
for child in ['render', 'configuration']:
add_child(child)
return xml_object