def _create_row_preview_response(
action: Action,
idx: int,
page_context: Dict,
prelude: str = None,
):
"""Create the elements to render a sigle row preview.
:param action: Action being previewed.
:param idx:
:param page_context:
:return: page_context is modified to include the appropriate items
"""
# Get the total number of items
filter_obj = action.get_filter()
if filter_obj:
n_items = filter_obj.n_rows_selected
else:
n_items = action.workflow.nrows
# Set the correct values to the indeces
prv, idx, nxt = _get_navigation_index(idx, n_items)
row_values = get_row_values(action, idx)
# Obtain the dictionary with the condition evaluation
condition_evaluation = action_condition_evaluation(action, row_values)
# Get the dictionary containing column names, attributes and condition
# valuations:
eval_context = get_action_evaluation_context(action, row_values,
condition_evaluation)
all_false = False
if action.conditions.filter(is_filter=False).count():
# If there are conditions, check if they are all false
all_false = all(not bool_val
for __, bool_val in condition_evaluation.items())
# Evaluate the action content.
show_values = ''
incorrect_json = False
if action.is_out:
action_content = evaluate_row_action_out(action, eval_context)
if action.action_type == Action.personalized_json:
incorrect_json = not _check_json_is_correct(action_content)
else:
action_content = evaluate_row_action_in(action, eval_context)
if action_content is None:
action_content = _(
'Error while retrieving content for student {0}', ).format(idx)
else:
# Get the conditions used in the action content
act_cond = action.get_used_conditions()
# Get the variables/columns from the conditions
act_vars = set().union(
*[
cond.columns.all()
for cond in action.conditions.filter(name__in=act_cond)
], )
# Sort the variables/columns by position and get the name
show_values = ', '.join([
'{0} = {1}'.format(col.name, row_values[col.name])
for col in act_vars
], )
uses_plain_text = (action.action_type == Action.personalized_canvas_email
or action.action_type == Action.personalized_json)
if uses_plain_text:
action_content = escape(action_content)
if prelude:
prelude = evaluate_row_action_out(action, eval_context, prelude)
# Update the context
page_context.update({
'n_items': n_items,
'nxt': nxt,
'prv': prv,
'incorrect_json': incorrect_json,
'show_values': show_values,
'all_false': all_false,
'prelude': prelude,
'action_content': action_content,
'show_navigation': True
})
return
def create_row_preview_context(
action: models.Action,
idx: int,
context: Dict,
prelude: Optional[str] = None,
):
"""Create the elements to render a single row preview.
:param action: Action being previewed.
:param idx:
:param context:
:param prelude: Optional additional text to include in the preview.
:return: context is modified to include the appropriate items
"""
# Get the total number of items
filter_obj = action.get_filter()
if filter_obj:
n_items = filter_obj.n_rows_selected
else:
n_items = action.workflow.nrows
# Set the correct values to the indeces
prv, idx, nxt = _get_navigation_index(idx, n_items)
row_values = get_row_values(action, idx)
# Obtain the dictionary with the condition evaluation
condition_evaluation = action_condition_evaluation(action, row_values)
# Get the dictionary containing column names, attributes and condition
# valuations:
eval_context = get_action_evaluation_context(action, row_values,
condition_evaluation)
all_false = False
if action.conditions.filter(is_filter=False).count():
# If there are conditions, check if they are all false
all_false = all(not bool_val
for __, bool_val in condition_evaluation.items())
# Evaluate the action content.
show_values = ''
incorrect_json = False
if action.is_out:
action_content = evaluate_row_action_out(action, eval_context)
if action.action_type == models.Action.PERSONALIZED_JSON:
incorrect_json = not _check_json_is_correct(action_content)
else:
action_content = _evaluate_row_action_in(action, eval_context)
if action_content is None:
action_content = _(
'Error while retrieving content (index: {0})', ).format(idx)
else:
# Get the conditions used in the action content
act_cond = action.get_used_conditions()
# Get the variables/columns from the conditions
act_vars = set().union(*[
cond.columns.all()
for cond in action.conditions.filter(name__in=act_cond)
])
act_vars = act_vars.union(
{triplet.column
for triplet in action.column_condition_pair.all()})
# Sort the variables/columns by position and get the name
show_values = ', '.join([
'"{0}" = {1}'.format(col.name, row_values[col.name])
for col in act_vars
])
uses_plain_text = (
action.action_type == models.Action.PERSONALIZED_CANVAS_EMAIL
or action.action_type == models.Action.PERSONALIZED_JSON)
if uses_plain_text:
action_content = escape(action_content)
if prelude:
prelude = evaluate_row_action_out(action, eval_context, prelude)
# Update the context
context.update({
'n_items':
n_items,
'nxt':
nxt,
'prv':
prv,
'incorrect_json':
incorrect_json,
'show_values':
show_values,
'show_conditions':
', '.join([
'"{0}" = {1}'.format(cond_name, str(cond_value))
for cond_name, cond_value in condition_evaluation.items()
]),
'all_false':
all_false,
'prelude':
prelude,
'action_content':
action_content,
'show_navigation':
True
})