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MBS-9887: Add persona to conversation
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,199 @@ | ||
| <?php | ||
| // This file is part of Moodle - http://moodle.org/ | ||
| // | ||
| // Moodle is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // Moodle is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| // GNU General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU General Public License | ||
| // along with Moodle. If not, see <http://www.gnu.org/licenses/>. | ||
|
|
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| namespace block_ai_chat\form; | ||
|
|
||
| use core_form\dynamic_form; | ||
| use context; | ||
| use function DI\get; | ||
|
|
||
| /** | ||
| * Class base_form | ||
| * | ||
| * @package block_ai_chat | ||
| * @copyright 2025 Tobias Garske, ISB Bayern | ||
| * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later | ||
| */ | ||
| class persona_form extends dynamic_form { | ||
| /** @var array $personas */ | ||
| protected array $personas; | ||
| /** @var bool|object $personaselected */ | ||
| protected bool|object $personaselected; | ||
| /** @var int $blockcontextid */ | ||
| protected int $blockcontextid; | ||
|
|
||
| /** | ||
| * Form definition. | ||
| */ | ||
| public function definition() { | ||
| global $USER, $DB; | ||
|
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| // Load default and user personas here since select options need to be inserted. | ||
| [$currentprompt, $this->personas, $names, $prompts] = \block_ai_chat\local\persona::get_all_personas(); | ||
|
|
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| // Stringify. | ||
| $prompts = json_encode($prompts); | ||
|
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| $mform =& $this->_form; | ||
|
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| $mform->addElement('hidden', 'contextid'); | ||
| $mform->setType('contextid', PARAM_INT); | ||
| $mform->setDefault('contextid', $this->optional_param('contextid', null, PARAM_INT)); | ||
|
|
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| $mform->addElement('hidden', 'prompts'); | ||
| $mform->setType('prompts', PARAM_TEXT); | ||
| $mform->setDefault('prompts', $prompts); | ||
|
|
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| $mform->addElement('select', 'name', get_string('name', 'block_ai_chat'), $names); | ||
| $mform->setType('name', PARAM_ALPHANUM); | ||
|
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| $mform->addElement('textarea', 'prompt', get_string('prompt', 'block_ai_chat')); | ||
| $mform->setType('prompt', PARAM_TEXT); | ||
| $mform->setDefault('prompt', $currentprompt); | ||
| } | ||
|
|
||
| /** | ||
| * Returns the user context | ||
| * | ||
| * @return context | ||
| */ | ||
| protected function get_context_for_dynamic_submission(): context { | ||
| // When modal is built, contextid is passed as optional_param. For submission it is accessed via formdata. | ||
| if (!isset($this->blockcontextid)) { | ||
| $this->blockcontextid = $this->optional_param('contextid', null, PARAM_INT); | ||
| } | ||
| return \context::instance_by_id($this->blockcontextid); | ||
| } | ||
|
|
||
| /** | ||
| * | ||
| * Checks if current user has sufficient permissions, otherwise throws exception | ||
| */ | ||
| protected function check_access_for_dynamic_submission(): void { | ||
| require_capability('block/ai_chat:addinstance', \context_system::instance()); | ||
| } | ||
|
|
||
| /** | ||
| * Form validation. | ||
| * | ||
| * @param array $data array of ("fieldname"=>value) of submitted data | ||
| * @param array $files array of uploaded files "element_name"=>tmp_file_path | ||
| * @return array of "element_name"=>"error_description" if there are errors, | ||
| * or an empty array if everything is OK (true allowed for backwards compatibility too). | ||
| */ | ||
| public function validation($data, $files) { | ||
| $errors = []; | ||
| // $data['name'] = "0" is the option to delete the current persona. | ||
| if (empty($data['name']) && $data['name'] !== "0") { | ||
| $errors['name'] = get_string('errorname', 'block_ai_chat'); | ||
| } | ||
| if (empty($data['prompt']) && $data['name'] !== "0") { | ||
| $errors['prompt'] = get_string('errorprompt', 'block_ai_chat'); | ||
| } | ||
| return $errors; | ||
| } | ||
|
|
||
| /** | ||
| * Process the form submission, used if form was submitted via AJAX | ||
| * | ||
| * @return array Returns whether a new source was created. | ||
| */ | ||
| public function process_dynamic_submission(): array { | ||
| global $USER, $DB; | ||
|
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| $formdata = $this->get_data(); | ||
|
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| $formdata->timemodified = time(); | ||
|
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| $context = $this->get_context_for_dynamic_submission(); | ||
|
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| // Delete connected persona entries. | ||
| if ($formdata->name == 0) { | ||
| $params = ['id' => $this->personaselected->personasid]; | ||
| $DB->delete_records('block_ai_chat_personas', $params); | ||
| $params = ['contextid' => $formdata->contextid, 'personasid' => $this->personaselected->personasid]; | ||
| $DB->delete_records('block_ai_chat_personas_selected', $params); | ||
| return [ | ||
| 'update' => true, | ||
| ]; | ||
| } | ||
|
|
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| // Check if persona is selected for this instance. | ||
| if ($this->personaselected) { | ||
| // Update personas_selected. | ||
| // This is one record per instance, where the current prompt is saved. | ||
| $record = new \stdClass(); | ||
| $record->id = $this->personaselected->personasid; | ||
| $record->userid = $USER->id; | ||
| $record->prompt = $formdata->prompt; | ||
| $record->timemodified = time(); | ||
| $result1 = $DB->update_record('block_ai_chat_personas', $record); | ||
|
|
||
| } else { | ||
| // Insert new records. | ||
| // This is to allow custom prompts. | ||
| $record = new \stdClass(); | ||
| $record->userid = $USER->id; | ||
| $record->name = get_string('chosenpersona', 'block_ai_chat'); | ||
| $record->prompt = $formdata->prompt; | ||
| $record->timecreated = time(); | ||
| $record->timemodified = time(); | ||
| $entry = $DB->insert_record('block_ai_chat_personas', $record); | ||
|
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| // Insert to personas_selected. | ||
| $record = new \stdClass(); | ||
| $record->personasid = $entry; | ||
| $record->contextid = $formdata->contextid; | ||
| $result2 = $DB->insert_record('block_ai_chat_personas_selected', $record); | ||
| } | ||
|
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| return [ | ||
| 'update' => true, | ||
| ]; | ||
| } | ||
|
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| /** | ||
| * Load in existing data as form defaults | ||
| */ | ||
| public function set_data_for_dynamic_submission(): void { | ||
| global $DB; | ||
|
|
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| $this->get_context_for_dynamic_submission(); | ||
|
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| // Check if a persona is selected for this instance. | ||
| $param = [$this->blockcontextid]; | ||
| $this->personaselected = $DB->get_record_select('block_ai_chat_personas_selected', 'contextid = ?', $param); | ||
| if ($this->personaselected) { | ||
| $data = [ | ||
| 'name' => $this->personaselected->personasid, | ||
| 'prompt' => $this->personas[$this->personaselected->personasid]->prompt, | ||
| ]; | ||
| } else { | ||
| $data = []; | ||
| } | ||
|
|
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| $this->set_data($data); | ||
| } | ||
|
|
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| /** | ||
| * Returns url to set in $PAGE->set_url() when form is being rendered or submitted via AJAX | ||
| * | ||
| * @return moodle_url | ||
| */ | ||
| protected function get_page_url_for_dynamic_submission(): \moodle_url { | ||
| return new \moodle_url('/block_ai_chat_persona_dummy.php'); | ||
| } | ||
| } |
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