69 lines
2.3 KiB
Python
69 lines
2.3 KiB
Python
"""
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Namespace that defines fields common to all blocks used in the LMS
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"""
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from xblock.core import Namespace, Boolean, Scope, String, Float
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from xmodule.fields import Date, Timedelta
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class StringyBoolean(Boolean):
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"""
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Reads strings from JSON as booleans.
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'true' (case insensitive) return True, other strings return False
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Other types are returned unchanged
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"""
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def from_json(self, value):
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if isinstance(value, basestring):
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return value.lower() == 'true'
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return value
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class StringyFloat(Float):
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"""
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Reads values as floats. If the value parses as a float, returns
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that, otherwise returns None
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"""
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def from_json(self, value):
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try:
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return float(value)
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except:
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return None
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class LmsNamespace(Namespace):
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"""
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Namespace that defines fields common to all blocks used in the LMS
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"""
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hide_from_toc = StringyBoolean(
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help="Whether to display this module in the table of contents",
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default=False,
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scope=Scope.settings
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)
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graded = Boolean(
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help="Whether this module contributes to the final course grade",
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default=False,
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scope=Scope.settings
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)
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format = String(
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help="What format this module is in (used for deciding which "
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"grader to apply, and what to show in the TOC)",
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scope=Scope.settings,
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)
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start = Date(help="Start time when this module is visible", scope=Scope.settings)
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due = String(help="Date that this problem is due by", scope=Scope.settings, default='')
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source_file = String(help="DO NOT USE", scope=Scope.settings)
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xqa_key = String(help="DO NOT USE", scope=Scope.settings)
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ispublic = Boolean(help="Whether this course is open to the public, or only to admins", scope=Scope.settings)
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graceperiod = Timedelta(
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help="Amount of time after the due date that submissions will be accepted",
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scope=Scope.settings
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)
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showanswer = String(help="When to show the problem answer to the student", scope=Scope.settings, default="closed")
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rerandomize = String(help="When to rerandomize the problem", default="always", scope=Scope.settings)
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days_early_for_beta = StringyFloat(
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help="Number of days early to show content to beta users",
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default=None,
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scope=Scope.settings
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)
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