testing

20140706.harbormasterdepend.1.php
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			<?php

			$plan_table = new HarbormasterBuildPlan();
			$step_table = new HarbormasterBuildStep();
			$conn_w = $plan_table->establishConnection('w');
			foreach (new LiskMigrationIterator($plan_table) as $plan) {

			echo pht(
			"Migrating build plan %d: %s...\n",
			$plan->getID(),
			$plan->getName());

			// Load all build steps in order using the step sequence.
			$steps = queryfx_all(
			$conn_w,
			'SELECT id FROM %T WHERE buildPlanPHID = %s ORDER BY sequence ASC;',
			$step_table->getTableName(),
			$plan->getPHID());

			$previous_step = null;
			foreach ($steps as $step) {
			$id = $step['id'];

			$loaded_step = id(new HarbormasterBuildStep())->load($id);

			$depends_on = $loaded_step->getDetail('dependsOn');
			if ($depends_on !== null) {
			// This plan already contains steps with depends_on set, so
			// we skip since there's nothing to migrate.
			break;
			}

			if ($previous_step === null) {
			$depends_on = array();
			} else {
			$depends_on = array($previous_step->getPHID());
			}

			$loaded_step->setDetail('dependsOn', $depends_on);
			queryfx(
			$conn_w,
			'UPDATE %T SET details = %s WHERE id = %d',
			$step_table->getTableName(),
			json_encode($loaded_step->getDetails()),
			$loaded_step->getID());

			$previous_step = $loaded_step;

			echo pht(
			" Migrated build step %d.\n",
			$loaded_step->getID());
			}

			}