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A collection of all the question statistics calculated for an activity instance ie. the stats calculated for slots and sub-questions and variants of those questions.
| Author: | James Pratt me@jamiep.org |
| Copyright: | 2014 The Open University |
| License: | http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later |
| File Size: | 460 lines (19 kb) |
| Included or required: | 0 times |
| Referenced: | 0 times |
| Includes or requires: | 0 files |
Defines 1 class
all_calculated_for_qubaid_condition:: (20 methods):
initialise_for_subq()
initialise_for_slot()
has_subq()
for_subq()
get_all_subq_ids()
get_all_slots()
has_slot()
for_slot()
get_cached()
get_last_calculated_time()
cache()
get_sub_questions()
structure_analysis_for_one_slot()
any_error_messages()
all_variant_stats_for_one_slot()
all_subq_variants_for_one_slot()
all_subqs_for_one_slot()
all_subq_and_variant_stats_for_slot()
make_new_subq_stat_for()
make_new_calculated_question_summary_stat()
Class: all_calculated_for_qubaid_condition - X-Ref
A collection of all the question statistics calculated for an activity instance.| initialise_for_subq($step, $variant = null) X-Ref |
| Set up a calculated_for_subquestion instance ready to store a randomly selected question's stats. param: object $step param: int|null $variant Is this to keep track of a variant's stats? If so what is the variant, if not null. |
| initialise_for_slot($slot, $question, $variant = null) X-Ref |
| Set up a calculated instance ready to store a slot question's stats. param: int $slot param: object $question param: int|null $variant Is this to keep track of a variant's stats? If so what is the variant, if not null. |
| has_subq($questionid, $variant = null) X-Ref |
| Do we have stats for a particular quesitonid (and optionally variant)? param: int $questionid The id of the sub question. param: int|null $variant if not null then we want the object to store a variant of a sub-question's stats. return: bool whether those stats exist (yet). |
| for_subq($questionid, $variant = null) X-Ref |
| Reference for a item stats instance for a questionid and optional variant no. param: int $questionid The id of the sub question. param: int|null $variant if not null then we want the object to store a variant of a sub-question's stats. return: calculated|calculated_for_subquestion stats instance for a questionid and optional variant no. |
| get_all_subq_ids() X-Ref |
| ids of all randomly selected question for all slots. return: int[] An array of all sub-question ids. |
| get_all_slots() X-Ref |
| All slots nos that stats have been calculated for. return: int[] An array of all slot nos. |
| has_slot($slot, $variant = null) X-Ref |
| Do we have stats for a particular slot (and optionally variant)? param: int $slot The slot no. param: int|null $variant if provided then we want the object which stores a variant of a position's stats. return: bool whether those stats exist (yet). |
| for_slot($slot, $variant = null) X-Ref |
| Get position stats instance for a slot and optional variant no. param: int $slot The slot no. param: int|null $variant if provided then we want the object which stores a variant of a position's stats. return: calculated|calculated_for_subquestion An instance of the class storing the calculated position stats. |
| get_cached($qubaids) X-Ref |
| Load cached statistics from the database. param: \qubaid_condition $qubaids Which question usages to load stats for? |
| get_last_calculated_time($qubaids) X-Ref |
| Find time of non-expired statistics in the database. param: \qubaid_condition $qubaids Which question usages to look for stats for? return: int|bool Time of cached record that matches this qubaid_condition or false if non found. |
| cache($qubaids) X-Ref |
| Save stats to db. param: \qubaid_condition $qubaids Which question usages are we caching the stats of? |
| get_sub_questions() X-Ref |
| Return all sub-questions used. return: \object[] array of questions. |
| structure_analysis_for_one_slot($slot, $limitvariants = false) X-Ref |
| Return all stats for one slot, stats for the slot itself, and either : - variants of question - variants of randomly selected questions - randomly selected questions param: int $slot the slot no param: bool|int $limitvariants limit number of variants and sub-questions displayed? return: calculated|calculated_for_subquestion[] stats to display |
| any_error_messages() X-Ref |
| Call after calculations to output any error messages. return: string[] Array of strings describing error messages found during stats calculation. |
| all_variant_stats_for_one_slot($slot) X-Ref |
| Return all stats for variants of question in slot $slot. param: int $slot The slot no. return: calculated[] The instances storing the calculated stats. |
| all_subq_variants_for_one_slot($slot) X-Ref |
| Return all stats for variants of randomly selected questions for one slot $slot. param: int $slot The slot no. return: calculated[] The instances storing the calculated stats. |
| all_subqs_for_one_slot($slot) X-Ref |
| Return all stats for randomly selected questions for one slot $slot. param: int $slot The slot no. return: calculated[] The instances storing the calculated stats. |
| all_subq_and_variant_stats_for_slot($slot, $limited) X-Ref |
| Return all variant or 'sub-question' stats one slot, either : - variants of question - variants of randomly selected questions - randomly selected questions param: int $slot the slot no param: bool $limited limit number of variants and sub-questions displayed? return: calculated|calculated_for_subquestion|calculated_question_summary[] stats to display |
| make_new_subq_stat_for($displaynumber, $slot, $subqid, $variant = null) X-Ref |
| We need a new object for display. Sub-question stats can appear more than once in different slots. So we create a clone of the object and then we can set properties on the object that are per slot. param: int $displaynumber The display number for this sub question. param: int $slot The slot number. param: int $subqid The sub question id. param: null|int $variant The variant no. return: calculated_for_subquestion The object for display. |
| make_new_calculated_question_summary_stat($randomquestioncalculated, $subquestionstats) X-Ref |
| Create a summary calculated object for a calculated question. This is used as a placeholder to indicate that a calculated question has sub questions or variations to show rather than listing each subquestion or variation directly. param: calculated $randomquestioncalculated The calculated instance for the random question slot. param: calculated[] $subquestionstats The instances of the calculated stats of the questions that are being summarised. return: calculated_question_summary |
