def clean(self):
if self.width < 0.0 or self.width > settings.CMSNVD3_MAX_CONT_DIM:
raise ValidationError(
_("Container width should be in interval [0, %s]."
% settings.CMSNVD3_MAX_CONT_DIM))
if self.height < 0.0 or self.height > settings.CMSNVD3_MAX_CONT_DIM:
raise ValidationError(
_("Container height should be in interval [0, %s]."
% settings.CMSNVD3_MAX_CONT_DIM))
if self.x_is_date and not self.x_date_format:
raise ValidationError(
_("X-axis is of date-format. \
You should provide valid format string in the <Date format string> field."))
xdata = _xdataloader(self.xdata)
ydata = _ydataloader(self.ydata)
if not all(map(lambda x: len(x) == len(xdata), ydata)):
raise ValidationError(_("Length of one of the Y-data arrays not equal\
to length of the X-data array. Check input data."))
def render(self, context, instance, placeholder):
error, html_container = None, None
if instance.chart_type not in NVD3Model.CHART_TYPES:
error = _('Chart type is not specified or of not valid type.')
if not instance.container_name:
container_name = uuid.uuid4().hex[:settings.CMSNVD3_ID_RANDOM_LENGTH]
container_name = settings.CMSNVD3_CONT_ID_PREFIX + container_name
elif re.match(r'[a-zA-Z0-9\-]+', instance.container_name):
container_name = instance.container_name
else:
container_name = uuid.uuid4().hex[:settings.CMSNVD3_ID_RANDOM_LENGTH]
container_name = settings.CMSNVD3_CONT_ID_PREFIX + container_name
# xdata len == ydata len
xdata = _xdataloader(instance.xdata)
ydata = _ydataloader(instance.ydata)
ynames = instance.ynames.split(settings.CMSNVD3_DATASEP)
if not all(map(lambda x: len(x) == len(xdata), ydata)):
# This is validation after data loading
error = _("""Length of one of ydata arrays not equal\
to length of the xdata array. Check inputs.""")
try:
extra_attrs = ast.literal_eval(instance.attrs)
except:
extra_attrs = {}
if xdata and ydata and not error:
pars = {'x_is_date': instance.x_is_date,
'color_category': instance.color_category,
'name': container_name,
}
if instance.chart_type in ['multiBarChart']:
pars.update({'x_axis_format': None})
if instance.x_is_date:
pars.update({'x_axis_format': instance.x_date_format})
pars.update(extra_attrs)
chart = eval(instance.chart_type)(**pars)
if len(ynames) != len(ydata):
ynames = map(lambda x: _('serie ') + str(x+1),
range(len(ydata)))
for yitem, yname in zip(ydata, ynames):
chart.add_serie(name=yname, y=yitem, x=xdata)
chart.display_container = False
chart.buildcontent()
outputhtml = chart.htmlcontent + '\n'
chart_container = NVD3Chart()
chart_container.name = str(container_name)
chart_container.set_graph_height(
_safe_int(instance.height) or settings.CMSNVD3_CONT_HEIGHT
)
chart_container.set_graph_width(
_safe_int(instance.width) or settings.CMSNVD3_CONT_WIDTH
)
chart_container.buildcontainer()
html_container = chart_container.container + '\n'
if settings.CMSNVD3_D3JS_SOURCE.lower() == 'local':
d3js_src = NVD3CMSPlugin.NVD3_STATIC + 'd3.min.js'
else:
d3js_src = settings.CMSNVD3_D3JS_SOURCE
if settings.CMSNVD3_JS_SOURCE.lower() == 'local':
nvd3js_src = NVD3CMSPlugin.NVD3_STATIC + 'nv.d3.min.js'
else:
nvd3js_src = settings.CMSNVD3_JS_SOURCE
if settings.CMSNVD3_CSS.lower() == 'local':
nvd3css_src = NVD3CMSPlugin.NVD3_STATIC + 'nv.d3.css'
else:
nvd3css_src = settings.CMSNVD3_CSS
else:
nvd3js_src,\
d3js_src, nvd3css_src, outputhtml = None, None, None, None
if not error:
error = "X-data or Y-data not defined correctly."
context.update({'htmldata': outputhtml, 'error': error,
'htmlcontainer': html_container,
'd3js_src': d3js_src,
'nvd3js_src': nvd3js_src,
'nvd3css_src': nvd3css_src
})
return context
