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<?php |
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namespace EventEspressoBatchRequest\JobHandlers; |
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use DateTime; |
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use DateTimeZone; |
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use EE_Error; |
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use EE_Model_Field_Base; |
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use EE_Table_Base; |
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use EventEspresso\core\domain\entities\DbSafeDateTime; |
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use EventEspresso\core\exceptions\InvalidDataTypeException; |
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use EventEspresso\core\exceptions\InvalidInterfaceException; |
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use EventEspressoBatchRequest\JobHandlerBaseClasses\JobHandler; |
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use EventEspressoBatchRequest\Helpers\BatchRequestException; |
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use EventEspressoBatchRequest\Helpers\JobParameters; |
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use EventEspressoBatchRequest\Helpers\JobStepResponse; |
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use EE_Registry; |
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use EE_Datetime_Field; |
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use EEM_Base; |
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use EE_Change_Log; |
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use Exception; |
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use InvalidArgumentException; |
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defined('EVENT_ESPRESSO_VERSION') || exit('No direct access allowed.'); |
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class DatetimeOffsetFix extends JobHandler |
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{ |
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/** |
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* Key for the option used to track which models have been processed when doing the batches. |
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*/ |
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const MODELS_TO_PROCESS_OPTION_KEY = 'ee_models_processed_for_datetime_offset_fix'; |
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const COUNT_OF_MODELS_PROCESSED = 'ee_count_of_ee_models_processed_for_datetime_offset_fixed'; |
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/** |
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* Key for the option used to track what the current offset is that will be applied when this tool is executed. |
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*/ |
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const OFFSET_TO_APPLY_OPTION_KEY = 'ee_datetime_offset_fix_offset_to_apply'; |
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const OPTION_KEY_OFFSET_RANGE_START_DATE = 'ee_datetime_offset_start_date_range'; |
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const OPTION_KEY_OFFSET_RANGE_END_DATE = 'ee_datetime_offset_end_date_range'; |
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/** |
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* String labelling the datetime offset fix type for change-log entries. |
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*/ |
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const DATETIME_OFFSET_FIX_CHANGELOG_TYPE = 'datetime_offset_fix'; |
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/** |
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* String labelling a datetime offset fix error for change-log entries. |
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*/ |
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const DATETIME_OFFSET_FIX_CHANGELOG_ERROR_TYPE = 'datetime_offset_fix_error'; |
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/** |
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* @var EEM_Base[] |
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*/ |
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protected $models_with_datetime_fields = array(); |
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/** |
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* Performs any necessary setup for starting the job. This is also a good |
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* place to setup the $job_arguments which will be used for subsequent HTTP requests |
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* when continue_job will be called |
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* |
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* @param JobParameters $job_parameters |
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* @return JobStepResponse |
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* @throws EE_Error |
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* @throws InvalidArgumentException |
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* @throws InvalidDataTypeException |
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* @throws InvalidInterfaceException |
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*/ |
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public function create_job(JobParameters $job_parameters) |
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{ |
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$models_with_datetime_fields = $this->getModelsWithDatetimeFields(); |
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//we'll be doing each model as a batch. |
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$job_parameters->set_job_size(count($models_with_datetime_fields)); |
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return new JobStepResponse( |
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$job_parameters, |
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esc_html__('Starting Datetime Offset Fix', 'event_espresso') |
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); |
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} |
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/** |
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* Performs another step of the job |
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* |
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* @param JobParameters $job_parameters |
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* @param int $batch_size |
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* @return JobStepResponse |
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* @throws EE_Error |
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* @throws InvalidArgumentException |
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* @throws InvalidDataTypeException |
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* @throws InvalidInterfaceException |
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*/ |
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public function continue_job(JobParameters $job_parameters, $batch_size = 50) |
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{ |
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$models_to_process = $this->getModelsWithDatetimeFields(); |
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//let's pop off the a model and do the query to apply the offset. |
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$model_to_process = array_pop($models_to_process); |
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//update our record |
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$this->setModelsToProcess($models_to_process); |
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$this->processModel($model_to_process); |
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$this->updateCountOfModelsProcessed(); |
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$job_parameters->set_units_processed($this->getCountOfModelsProcessed()); |
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if (count($models_to_process) > 0) { |
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$job_parameters->set_status(JobParameters::status_continue); |
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} else { |
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$job_parameters->set_status(JobParameters::status_complete); |
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} |
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return new JobStepResponse( |
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$job_parameters, |
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sprintf( |
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esc_html__('Updated the offset for all datetime fields on the %s model.', 'event_espresso'), |
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$model_to_process |
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) |
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); |
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} |
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/** |
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* Performs any clean-up logic when we know the job is completed |
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* |
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* @param JobParameters $job_parameters |
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* @return JobStepResponse |
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* @throws BatchRequestException |
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*/ |
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public function cleanup_job(JobParameters $job_parameters) |
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{ |
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//delete important saved options. |
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delete_option(self::MODELS_TO_PROCESS_OPTION_KEY); |
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delete_option(self::COUNT_OF_MODELS_PROCESSED); |
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delete_option(self::OPTION_KEY_OFFSET_RANGE_START_DATE); |
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delete_option(self::OPTION_KEY_OFFSET_RANGE_END_DATE); |
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return new JobStepResponse($job_parameters, esc_html__( |
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'Offset has been applied to all affected fields.', |
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'event_espresso' |
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)); |
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} |
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/** |
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* Contains the logic for processing a model and applying the datetime offset to affected fields on that model. |
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* @param string $model_class_name |
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* @throws EE_Error |
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*/ |
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protected function processModel($model_class_name) |
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{ |
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global $wpdb; |
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/** @var EEM_Base $model */ |
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$model = $model_class_name::instance(); |
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$original_offset = self::getOffset(); |
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$start_date_range = self::getStartDateRange(); |
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$end_date_range = self::getEndDateRange(); |
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$sql_date_function = $original_offset > 0 ? 'DATE_ADD' : 'DATE_SUB'; |
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$offset = abs($original_offset) * 60; |
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$date_ranges = array(); |
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//since some affected models might have two tables, we have to get our tables and set up a query for each table. |
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foreach ($model->get_tables() as $table) { |
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$query = 'UPDATE ' . $table->get_table_name(); |
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$fields_affected = array(); |
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$inner_query = array(); |
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foreach ($model->_get_fields_for_table($table->get_table_alias()) as $model_field) { |
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if ($model_field instanceof EE_Datetime_Field) { |
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$inner_query[$model_field->get_table_column()] = $model_field->get_table_column() . ' = ' |
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. $sql_date_function . '(' |
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. $model_field->get_table_column() |
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. ", INTERVAL {$offset} MINUTE)"; |
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$fields_affected[] = $model_field; |
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} |
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} |
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if (! $fields_affected) { |
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continue; |
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} |
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//do we do one query per column/field or one query for all fields on the model? It all depends on whether |
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//there is a date range applied or not. |
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if ($start_date_range instanceof DbSafeDateTime || $end_date_range instanceof DbSafeDateTime) { |
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$result = $this->doQueryForEachField($query, $inner_query, $start_date_range, $end_date_range); |
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} else { |
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$result = $this->doQueryForAllFields($query, $inner_query); |
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} |
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//record appropriate logs for the query |
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switch (true) { |
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case $result === false: |
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//record error. |
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$error_message = $wpdb->last_error; |
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//handle the edgecases where last_error might be empty. |
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if (! $error_message) { |
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$error_message = esc_html__('Unknown mysql error occured.', 'event_espresso'); |
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} |
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$this->recordChangeLog($model, $original_offset, $table, $fields_affected, $error_message); |
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break; |
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case is_array($result) && ! empty($result): |
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foreach ($result as $field_name => $error_message) { |
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$this->recordChangeLog($model, $original_offset, $table, array($field_name), $error_message); |
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} |
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break; |
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default: |
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$this->recordChangeLog($model, $original_offset, $table, $fields_affected); |
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} |
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} |
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} |
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/** |
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* Does the query on each $inner_query individually. |
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* |
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* @param string $query |
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* @param array $inner_query |
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* @param DbSafeDateTime|null $start_date_range |
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* @param DbSafeDateTime|null $end_date_range |
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* @return array An array of any errors encountered and the fields they were for. |
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*/ |
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private function doQueryForEachField($query, array $inner_query, $start_date_range, $end_date_range) |
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{ |
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global $wpdb; |
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$errors = array(); |
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foreach ($inner_query as $field_name => $field_query) { |
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$query_to_run = $query; |
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$where_conditions = array(); |
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$query_to_run .= ' SET ' . $field_query; |
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if ($start_date_range instanceof DbSafeDateTime) { |
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$start_date = $start_date_range->format(EE_Datetime_Field::mysql_timestamp_format); |
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$where_conditions[] = "{$field_name} > '{$start_date}'"; |
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} |
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if ($end_date_range instanceof DbSafeDateTime) { |
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$end_date = $end_date_range->format(EE_Datetime_Field::mysql_timestamp_format); |
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$where_conditions[] = "{$field_name} < '{$end_date}'"; |
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} |
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if ($where_conditions) { |
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$query_to_run .= ' WHERE ' . implode(' AND ', $where_conditions); |
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} |
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$result = $wpdb->query($query_to_run); |
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if ($result === false) { |
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//record error. |
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$error_message = $wpdb->last_error; |
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//handle the edgecases where last_error might be empty. |
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if (! $error_message) { |
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$error_message = esc_html__('Unknown mysql error occured.', 'event_espresso'); |
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} |
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$errors[$field_name] = $error_message; |
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} |
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} |
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return $errors; |
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} |
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/** |
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* Performs the query for all fields within the inner_query |
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* |
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* @param string $query |
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* @param array $inner_query |
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* @return false|int |
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*/ |
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private function doQueryForAllFields($query, array $inner_query) |
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{ |
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global $wpdb; |
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$query .= ' SET ' . implode(',', $inner_query); |
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return $wpdb->query($query); |
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} |
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/** |
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* Records a changelog entry using the given information. |
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* |
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* @param EEM_Base $model |
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* @param float $offset |
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* @param EE_Table_Base $table |
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* @param EE_Model_Field_Base[] $model_fields_affected |
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* @param string $error_message If present then there was an error so let's record that instead. |
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* @throws EE_Error |
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*/ |
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private function recordChangeLog( |
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EEM_Base $model, |
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$offset, |
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EE_Table_Base $table, |
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$model_fields_affected, |
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$error_message = '' |
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) { |
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//setup $fields list. |
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$fields = array(); |
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/** @var EE_Datetime_Field $model_field */ |
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foreach ($model_fields_affected as $model_field) { |
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if (! $model_field instanceof EE_Datetime_Field) { |
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continue; |
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} |
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$fields[] = $model_field->get_name(); |
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} |
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//setup the message for the changelog entry. |
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$message = $error_message |
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? sprintf( |
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esc_html__( |
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'The %1$s table for the %2$s model did not have the offset of %3$f applied to its fields (%4$s), because of the following error:%5$s', |
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'event_espresso' |
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), |
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$table->get_table_name(), |
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$model->get_this_model_name(), |
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$offset, |
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implode(',', $fields), |
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$error_message |
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) |
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: sprintf( |
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esc_html__( |
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'The %1$s table for the %2$s model has had the offset of %3$f applied to its following fields: %4$s', |
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'event_espresso' |
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), |
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$table->get_table_name(), |
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$model->get_this_model_name(), |
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$offset, |
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implode(',', $fields) |
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); |
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//write to the log |
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$changelog = EE_Change_Log::new_instance(array( |
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'LOG_type' => $error_message |
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? self::DATETIME_OFFSET_FIX_CHANGELOG_ERROR_TYPE |
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: self::DATETIME_OFFSET_FIX_CHANGELOG_TYPE, |
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'LOG_message' => $message |
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)); |
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$changelog->save(); |
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} |
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/** |
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* Returns an array of models that have datetime fields. |
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* This array is added to a short lived transient cache to keep having to build this list to a minimum. |
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* |
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* @return array an array of model class names. |
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* @throws EE_Error |
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* @throws InvalidDataTypeException |
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* @throws InvalidInterfaceException |
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* @throws InvalidArgumentException |
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*/ |
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private function getModelsWithDatetimeFields() |
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{ |
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$this->getModelsToProcess(); |
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if (! empty($this->models_with_datetime_fields)) { |
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return $this->models_with_datetime_fields; |
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} |
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$all_non_abstract_models = EE_Registry::instance()->non_abstract_db_models; |
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foreach ($all_non_abstract_models as $non_abstract_model) { |
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//get model instance |
347
|
|
|
/** @var EEM_Base $non_abstract_model */ |
348
|
|
|
$non_abstract_model = $non_abstract_model::instance(); |
349
|
|
|
if ($non_abstract_model->get_a_field_of_type('EE_Datetime_Field') instanceof EE_Datetime_Field) { |
350
|
|
|
$this->models_with_datetime_fields[] = get_class($non_abstract_model); |
351
|
|
|
} |
352
|
|
|
} |
353
|
|
|
$this->setModelsToProcess($this->models_with_datetime_fields); |
354
|
|
|
return $this->models_with_datetime_fields; |
355
|
|
|
} |
356
|
|
|
|
357
|
|
|
|
358
|
|
|
/** |
359
|
|
|
* This simply records the models that have been processed with our tracking option. |
360
|
|
|
* @param array $models_to_set array of model class names. |
361
|
|
|
*/ |
362
|
|
|
private function setModelsToProcess($models_to_set) |
363
|
|
|
{ |
364
|
|
|
update_option(self::MODELS_TO_PROCESS_OPTION_KEY, $models_to_set); |
365
|
|
|
} |
366
|
|
|
|
367
|
|
|
|
368
|
|
|
/** |
369
|
|
|
* Used to keep track of how many models have been processed for the batch |
370
|
|
|
* @param $count |
371
|
|
|
*/ |
372
|
|
|
private function updateCountOfModelsProcessed($count = 1) |
373
|
|
|
{ |
374
|
|
|
$count = $this->getCountOfModelsProcessed() + (int) $count; |
375
|
|
|
update_option(self::COUNT_OF_MODELS_PROCESSED, $count); |
376
|
|
|
} |
377
|
|
|
|
378
|
|
|
|
379
|
|
|
/** |
380
|
|
|
* Retrieve the tracked number of models processed between requests. |
381
|
|
|
* @return int |
382
|
|
|
*/ |
383
|
|
|
private function getCountOfModelsProcessed() |
384
|
|
|
{ |
385
|
|
|
return (int) get_option(self::COUNT_OF_MODELS_PROCESSED, 0); |
386
|
|
|
} |
387
|
|
|
|
388
|
|
|
|
389
|
|
|
/** |
390
|
|
|
* Returns the models that are left to process. |
391
|
|
|
* @return array an array of model class names. |
392
|
|
|
*/ |
393
|
|
|
private function getModelsToProcess() |
394
|
|
|
{ |
395
|
|
|
if (empty($this->models_with_datetime_fields)) { |
396
|
|
|
$this->models_with_datetime_fields = get_option(self::MODELS_TO_PROCESS_OPTION_KEY, array()); |
397
|
|
|
} |
398
|
|
|
return $this->models_with_datetime_fields; |
399
|
|
|
} |
400
|
|
|
|
401
|
|
|
|
402
|
|
|
/** |
403
|
|
|
* Used to record the offset that will be applied to dates and times for EE_Datetime_Field columns. |
404
|
|
|
* @param float $offset |
405
|
|
|
*/ |
406
|
|
|
public static function updateOffset($offset) |
407
|
|
|
{ |
408
|
|
|
update_option(self::OFFSET_TO_APPLY_OPTION_KEY, $offset); |
409
|
|
|
} |
410
|
|
|
|
411
|
|
|
|
412
|
|
|
/** |
413
|
|
|
* Used to retrieve the saved offset that will be applied to dates and times for EE_Datetime_Field columns. |
414
|
|
|
* |
415
|
|
|
* @return float |
416
|
|
|
*/ |
417
|
|
|
public static function getOffset() |
418
|
|
|
{ |
419
|
|
|
return (float) get_option(self::OFFSET_TO_APPLY_OPTION_KEY, 0); |
420
|
|
|
} |
421
|
|
|
|
422
|
|
|
|
423
|
|
|
/** |
424
|
|
|
* Used to set the saved offset range start date. |
425
|
|
|
* @param DbSafeDateTime|null $start_date |
426
|
|
|
*/ |
427
|
|
View Code Duplication |
public static function updateStartDateRange(DbSafeDateTime $start_date = null) |
428
|
|
|
{ |
429
|
|
|
$date_to_save = $start_date instanceof DbSafeDateTime |
430
|
|
|
? $start_date->format('U') |
431
|
|
|
: ''; |
432
|
|
|
update_option(self::OPTION_KEY_OFFSET_RANGE_START_DATE, $date_to_save); |
433
|
|
|
} |
434
|
|
|
|
435
|
|
|
|
436
|
|
|
/** |
437
|
|
|
* Used to get the saved offset range start date. |
438
|
|
|
* @return DbSafeDateTime|null |
439
|
|
|
*/ |
440
|
|
View Code Duplication |
public static function getStartDateRange() |
441
|
|
|
{ |
442
|
|
|
$start_date = get_option(self::OPTION_KEY_OFFSET_RANGE_START_DATE, null); |
443
|
|
|
try { |
444
|
|
|
$datetime = DateTime::createFromFormat('U', $start_date, new DateTimeZone('UTC')); |
445
|
|
|
$start_date = $datetime instanceof DateTime |
446
|
|
|
? DbSafeDateTime::createFromDateTime($datetime) |
447
|
|
|
: null; |
448
|
|
|
|
449
|
|
|
} catch (Exception $e) { |
450
|
|
|
$start_date = null; |
451
|
|
|
} |
452
|
|
|
return $start_date; |
453
|
|
|
} |
454
|
|
|
|
455
|
|
|
|
456
|
|
|
|
457
|
|
|
/** |
458
|
|
|
* Used to set the saved offset range end date. |
459
|
|
|
* @param DbSafeDateTime|null $end_date |
460
|
|
|
*/ |
461
|
|
View Code Duplication |
public static function updateEndDateRange(DbSafeDateTime $end_date = null) |
462
|
|
|
{ |
463
|
|
|
$date_to_save = $end_date instanceof DbSafeDateTime |
464
|
|
|
? $end_date->format('U') |
465
|
|
|
: ''; |
466
|
|
|
update_option(self::OPTION_KEY_OFFSET_RANGE_END_DATE, $date_to_save); |
467
|
|
|
} |
468
|
|
|
|
469
|
|
|
|
470
|
|
|
/** |
471
|
|
|
* Used to get the saved offset range end date. |
472
|
|
|
* @return DbSafeDateTime|null |
473
|
|
|
*/ |
474
|
|
View Code Duplication |
public static function getEndDateRange() |
475
|
|
|
{ |
476
|
|
|
$end_date = get_option(self::OPTION_KEY_OFFSET_RANGE_END_DATE, null); |
477
|
|
|
try { |
478
|
|
|
$datetime = DateTime::createFromFormat('U', $end_date, new DateTimeZone('UTC')); |
479
|
|
|
$end_date = $datetime instanceof Datetime |
480
|
|
|
? DbSafeDateTime::createFromDateTime($datetime) |
481
|
|
|
: null; |
482
|
|
|
} catch (Exception $e) { |
483
|
|
|
$end_date = null; |
484
|
|
|
} |
485
|
|
|
return $end_date; |
486
|
|
|
} |
487
|
|
|
} |
488
|
|
|
|
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVar
assignment in line 1 and the$higher
assignment in line 2 are dead. The first because$myVar
is never used and the second because$higher
is always overwritten for every possible time line.