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DbMigrationPage.class.php
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<?php
namespace ProcessWire;
/*
* Need to allow for possibility of using DefaultPage (if it exists) as the base class so that any user-added methods
* are kept
*/
use Exception;
if(wireClassExists('DefaultPage')) {
class DummyMigrationPage extends DefaultPage {
}
} else {
class DummyMigrationPage extends Page {
}
}
/**
* Class DbMigrationPage
* @package ProcessWire
*
* @property object $migrations The parent page for migration pages
* @property object $migrationTemplate The template for migration pages
* @property string $migrationsPath Path to the folder holding the migrations .json files
* @property string $adminPath Path to the admin root (page id = 2)
* @property object $configData Process module settings
* @property boolean $ready To indicate tha ready() has run
* @property object $dbMigrate ProcessDbMigrate module instance
* @property string $dbName database name set in module config
* @property string $title Title
* @property mixed $dbMigrateRuntimeControl Page status
* @property mixed $dbMigrateRuntimeActions Migration actions
* @property int $dbMigrateLogChanges Toggle: 1 = Log changes, 0 = Sort on save, 2 = Manual
* @property string $dbMigrateFieldTracking Selector for fields to be tracked if 'log changes' is on
* @property string $dbMigrateTemplateTracking Selector for templates to be tracked if 'log changes' is on
* @property string $dbMigratePageTracking Selector for pages to be tracked if 'log changes' is on
* @property string $dbMigrateSummary Summary
* @property string $dbMigrateAdditionalDetails Additional details
* @property RepeaterDbMigrateItemPage $dbMigrateItem Migration item
* @property string $dbMigrateRestrictFields Restrict fields
* @property RepeaterDbMigrateSnippetsPage $dbMigrateSnippets Snippets
* @property mixed $dbMigrateRuntimeReady Hooks etc
*
*/
class DbMigrationPage extends DummyMigrationPage {
// Module constants
/*
* Fields which affect the migration - i.e. they contain key data determining the migration, rather than just information
*
*/
const KEY_DATA_FIELDS = array('dbMigrateItem', 'dbMigrateRestrictFields');
const INFO_ONLY_FIELDS = array('dbMigrateSummary', 'dbMigrateAdditionalDetails', 'dbMigrateSnippets');
/*
* ALL OTHER CONSTANTS ARE SET IN CLASS ProcessDbMigrate
*/
/**
* Create a new DbMigration page in memory.
*
* @param Template $tpl Template object this page should use.
*
*/
public function __construct(Template $tpl = null) {
if(is_null($tpl)) $tpl = $this->templates->get('DbMigration');
parent::__construct($tpl);
}
/**
* Get the data for a migration item
* @return void
*/
public function init() {
//bd('INIT MIGRATION');
}
/**
* Better to put hooks here rather than in ready.php
* This is called from ready() in ProcessDbMigrate.module as that is autoloaded
*
* @throws WireException
*/
public function ready() {
$this->set('adminPath', wire('pages')->get(2)->path);
$this->set('migrations', wire('pages')->get($this->adminPath . ProcessDbMigrate::MIGRATION_PARENT));
$this->set('migrationTemplate', wire('templates')->get(ProcessDbMigrate::MIGRATION_TEMPLATE));
$this->set('migrationsPath', wire('config')->paths->templates . ProcessDbMigrate::MIGRATION_PATH);
$this->set('configData', wire('modules')->getConfig('ProcessDbMigrate'));
$dbM = wire('modules')->get('ProcessDbMigrate');
/* @var $dbM ProcessDbMigrate */
$this->set('dbM', $dbM);
$this->set('dbName', $this->dbM->dbName());
if(isset($this->configData['suppress_hooks']) && $this->configData['suppress_hooks']) $this->wire()->error("Hook suppression is on - migrations will not work correctly - unset in the module settings.");
// Fix for PW versions < 3.0.152, but left in place regardless of version, in case custom page classes are not enabled
if($this->migrationTemplate->pageClass != __CLASS__) {
$this->migrationTemplate->pageClass = __CLASS__;
$this->migrationTemplate->save();
}
// Omit hooks if $this is null page (e.g. dummy-bootstrap)
if($this->id) {
$this->addHookAfter("Pages::saved(template=$this->migrationTemplate)", $this, 'afterSaved');
$this->addHookBefore("Pages::save(template=$this->migrationTemplate)", $this, 'beforeSaveThis');
$this->addHookBefore("Pages::trash(template=$this->migrationTemplate)", $this, 'beforeTrashThis');
$this->addHookAfter("Pages::trashed(template=$this->migrationTemplate)", $this, 'afterTrashedThis');
$this->addHookAfter("InputfieldFieldset::render", $this, 'afterFieldsetRender');
$readyFile = $this->migrationsPath . '/' . $this->name . '/ready.php';
if(file_exists($readyFile)) include_once $readyFile;
}
//bd($this, 'Migration Page ready');
$this->set('ready', true);
}
/**************************************************
*********** EXPORT SECTION ***********************
*************************************************/
/**
* Export migration data to json files and compare differences
*
* This is run in the 'source' database to export the migration data ($newOld = 'new')
* It is also run in the target database on first installation of a migration to capture the pre-installation state ($newOld = 'old')
* Running with $newOld = 'compare' creates cache files ('new-data.json' and 'old-data.json') for the current state,
* to compare against data.json files in 'new' and 'old' directories
* json files are also created representing the migration page itself
*
* Return an array of items detailing the status and the differences
*
* @param $newOld
* @return array|void|null
* @throws WireException
* @throws WirePermissionException
*
*/
public function exportData($newOld) {
if(!$this->ready) $this->ready();
if(!$this->id) return;
// NB Inputfield::exportConfigData sometimes returns columnwidth = 100 even if it is not set. This hook (removed at the end of the method) tries to fix that
// ToDo A more fundamental fix would be better
$exportHookId = $this->addHookAfter("Inputfield::exportConfigData", function($event) {
$dataIn = $event->arguments(0);
//bd($dataIn, 'dataIn');
$dataOut = $event->return;
if(!isset($dataIn['columnWidth'])
and isset($dataOut['columnWidth']) and $dataOut['columnWidth'] == 100) $dataOut['columnWidth'] = '';
$event->return = $dataOut;
//bd($dataOut, 'dataOut');
});
//bd($this->meta('draft'), 'meta draft');
$directory = $this->migrationsPath;
//bd($directory);
/*
* INITIAL PROCESSING
*/
//bd($this, 'In exportData with newOld = ' . $newOld);
$excludeFields = (isset($this->configData['exclude_fieldnames']))
? str_replace(' ', '', $this->configData['exclude_fieldnames']) : '';
$excludeFields = $this->wire()->sanitizer->array(str_replace(' ', '', $excludeFields), 'fieldName');
$excludeTypes = (isset($this->configData['exclude_fieldtypes']))
? str_replace(' ', '', $this->configData['exclude_fieldtypes']) : '';
$excludeTypes = $this->wire()->sanitizer->array(str_replace(' ', '', $excludeTypes), 'fieldName');
$excludeTypes = array_merge($excludeTypes, ProcessDbMigrate::EXCLUDE_TYPES);
$excludeFieldsForTypes = $this->excludeFieldsForTypes($excludeTypes);
$excludeFields = array_merge($excludeFields, $excludeFieldsForTypes);
//bd($excludeFields, 'excludeFields');
$excludeFieldsBasic = $this->excludeFieldsForTypes(ProcessDbMigrate::EXCLUDE_TYPES);
//bd($this->configData, 'configData in exportData');
$excludeAttributes = (isset($configData['exclude_attributes']))
? str_replace(' ', '', $configData['exclude_attributes']) : '';
$excludeAttributes = $this->wire()->sanitizer->array(str_replace(' ', '', $excludeAttributes));
$excludeAttributes = array_merge($excludeAttributes, ProcessDbMigrate::EXCLUDE_ATTRIBUTES);
$excludeAttributesBasic = ProcessDbMigrate::EXCLUDE_ATTRIBUTES;
$result = null;
$migrationPath = $directory . $this->name . '/';
$migrationPathNewOld = $migrationPath . $newOld . '/';
if($newOld != 'compare') {
if($newOld == 'old' and is_dir($migrationPathNewOld)) return; // Don't over-write old directory once created
if(!is_dir($migrationPathNewOld)) if(!wireMkdir($migrationPathNewOld, true, "0777")) { // wireMkDir recursive
throw new WireException("Unable to create migration directory: $migrationPathNewOld");
}
if(!is_dir($migrationPathNewOld . 'files/')) if(!wireMkdir($migrationPathNewOld . 'files/', true, "0777")) {
throw new WireException("Unable to create migration files directory: {$migrationPathNewOld}bootstrap/");
}
}
/*
* GET DATA FOR THE MIGRATION PAGE ITSELF AND SAVE IN JSON
*/
$item = [];
$item['type'] = 'pages';
$item['action'] = 'changed';
$item['name'] = $this->path;
$item['oldName'] = '';
$migrationData = $this->getMigrationItemData(null, $item, $excludeAttributesBasic, $excludeFieldsBasic, $newOld, 'new')['data'];
//bd($migrationData, 'migrationData');
//bd($this->meta('sourceDb'), 'sourceDb');
if($this->meta('draft') and $this->meta('sourceDb')) {
$migrationData['sourceDb'] = $this->meta('sourceDb');
} else if($this->dbName) {
$migrationData['sourceDb'] = $this->dbName;
}
// Include an item for the site url and admin url as these may be different in the target
$migrationData['sourceSiteUrl'] = $this->wire()->config->urls->site;
$migrationData['sourceAdminUrl'] = $this->wire()->config->urls->admin;
$migrationObjectJson = $this->modifiedJsonEncode($migrationData);
if($newOld != 'compare') {
file_put_contents($migrationPathNewOld . 'migration.json', $migrationObjectJson);
$this->wire()->session->message($this->_('Exported migration definition as ') . $migrationPathNewOld . 'migration.json');
}
/*
* NOW CREATE THE MAIN JSON DATA FILES
*/
if(!$this->meta('draft') or $newOld != 'new') { // meta('draft') denotes draft migration prepared from comparison
/*
* GET DATA FROM PAGE AND SAVE IN JSON
*/
//$itemRepeater = $this->getFormatted('dbMigrateItem'); //getFormatted to get only published items
$itemRepeater = $this->dbMigrateItem->find("status=1");
//bd($itemRepeater, $itemRepeater);
if($newOld == 'new' || $newOld == 'compare') {
$items = $this->cycleItems($itemRepeater, $excludeAttributes, $excludeFields, $newOld, 'new');
$data = $items['data'];
//[$this, $data], 'this, data for json');
$files['new'] = $items['files'];
$objectJson['new'] = $this->modifiedJsonEncode($data);
//bd($objectJson['new'], 'New json created');
}
if($newOld == 'old' || $newOld == 'compare') {
$reverseItems = $this->cycleItems($itemRepeater, $excludeAttributes, $excludeFields, $newOld, 'old'); // cycleItems will reverse order for uninstall
$reverseData = $reverseItems['data'];
$files['old'] = $reverseItems['files'];
$objectJson['old'] = $this->modifiedJsonEncode($reverseData);
}
//bd($files, 'files in export data');
//bd($objectJson, '$objectJson ($newOld = ' . $newOld . ')');
if($newOld != 'compare') {
file_put_contents($migrationPathNewOld . 'data.json', $objectJson[$newOld]);
$this->wire()->session->message($this->_('Exported object data as') . ' ' . $migrationPathNewOld . 'data.json');
//bd($files[$newOld], '$files[$newOld]');
foreach($files[$newOld] as $fileArray) {
foreach($fileArray as $id => $baseNames) {
$filesPath = $this->wire('config')->paths->files . $id . '/';
if(!is_dir($migrationPathNewOld . 'files/' . $id . '/')) {
if(!wireMkdir($migrationPathNewOld . 'files/' . $id . '/', true, "0777")) {
throw new WireException("Unable to create migration files directory: {$migrationPathNewOld}files/{$id}/");
}
}
if(is_dir($filesPath)) {
$copyFiles = [];
foreach($baseNames as $baseName) {
//bd($baseName, 'Base name for id ' . $id);
if(is_string($baseName)) {
$copyFiles[] = $filesPath . $baseName;
} else if(is_array($baseName)) {
$copyFiles = array_merge($copyFiles, $baseName);
}
}
//bd($copyFiles, 'copyfiles');
foreach($copyFiles as $copyFile) {
if(file_exists($copyFile)) {
$this->wire()->files->copy($copyFile, $migrationPathNewOld . 'files/' . $id . '/');
$this->message(sprintf($this->_('Copied file %s to '), $copyFile) . $migrationPathNewOld . 'files/' . $id . '/');
} else {
$installType = ($newOld == 'new') ? 'Install' : 'Uninstall'; // $newOld is 'new' or 'old' in this context
$this->error(sprintf($this->_('File %1$s does not exist in this environment. %2$s will not be usable.'), $copyFile, $installType));
}
}
}
}
}
}
/*
* ON CREATION OF OLD JSON FILE, MAKE A COPY OF THE ORIGINAL NEW JSON FILE FOR LATER COMPARISON
* (introduced in version 0.1.0 - migrations created under earlier versions will not have done this and therefore will have more limited scope change checking)
*/
$newFileExists = (file_exists($migrationPath . 'new/data.json'));
if($newFileExists and $newOld == 'old') {
$this->wire()->files->copy($migrationPath . 'new/data.json', $migrationPath . 'old/orig-new-data.json');
}
/*
* COMPARE CURRENT STATE WITH NEW / OLD STATES
*/
if($newOld == 'compare') {
$cachePath = $this->wire()->config->paths->assets . 'cache/dbMigrate/';
if(!is_dir($cachePath)) if(!wireMkdir($cachePath, true, "0777")) { // wireMkDir recursive
throw new WireException("Unable to create cache migration directory: $cachePath");
}
if($data and $objectJson) {
//bd($migrationPath, 'migrationPath');
/*
* Get file data
*/
$newFile = (file_exists($migrationPath . 'new/data.json'))
? file_get_contents($migrationPath . 'new/data.json') : null;
$oldFile = (file_exists($migrationPath . 'old/data.json'))
? file_get_contents($migrationPath . 'old/data.json') : null;
file_put_contents($cachePath . 'old-data.json', $objectJson['old']);
file_put_contents($cachePath . 'new-data.json', $objectJson['new']);
//bd($newFile, 'New file');
$newArray = $this->compactArray(wireDecodeJSON($newFile));
//bd($newArray, 'newArray');
$oldArrayFull = wireDecodeJSON($oldFile);
$oldArray = $this->compactArray($oldArrayFull);
//bd('New compare');
$cmpArray['new'] = $this->compactArray(wireDecodeJSON($objectJson['new']));
//bd($cmpArray['new'], 'cmpArray');
$cmpArrayFull['old'] = wireDecodeJSON($objectJson['old']);
$cmpArray['old'] = $this->compactArray($cmpArrayFull['old']);
/*
* Compare 'new' data
*/
//bd('new data');
$R = $this->array_compare($newArray, $cmpArray['new']);
$R = $this->pruneImageFields($R, 'new');
//bd($R, ' array compare new->cmp');
//bd($this->modifiedJsonEncode($R), ' array compare json new->cmp');
$installedData = (!$R);
$installedDataDiffs = $R;
/*
* Compare 'old' data
*/
//bd('old data');
$R2 = $this->array_compare($oldArray, $cmpArray['old']);
$R2 = $this->pruneImageFields($R2, 'old');
//bd($R2, ' array compare old->cmp');
//bd($this->modifiedJsonEncode($R2), ' array compare json old->cmp');
$uninstalledData = (!$R2);
$uninstalledDataDiffs = $R2;
/*
* Finally compare the total difference between old and new files if both files are present
*/
//bd('total data');
if($newFile and $oldFile) {
$R3 = $this->array_compare($newArray, $oldArray);
$R3 = $this->pruneImageFields($R3, 'both');
$reviewedDataDiffs = $R3;
} else {
$reviewedDataDiffs = [];
}
/*
* DETECT ANY SCOPE CHANGES AS EVIDENCED IN THE NEW/DATA.JSON FILE
*/
$origNewFile = (file_exists($migrationPath . 'old/orig-new-data.json'))
? file_get_contents($migrationPath . 'old/orig-new-data.json') : null;
$origNewArray = $this->compactArray(wireDecodeJSON($origNewFile));
$scopeDiffs = [];
$scopeChange = false;
/*
* For migrations set using v0.1.0 or later, an 'orig-new-data' json file should have been copied at installation time
* Check the current 'new' data.json to see if the scope generated is different form the scope on initial installation
*/
if($origNewFile and $newFile) {
//bd(['new' => $newArray, 'orig' => $origNewArray], 'new and orig');
$scopeDiffs = array_diff_key($newArray, $origNewArray); // array
$scopeChange = (count($scopeDiffs) > 0); // Boolean
}
} else {
$installedData = true;
$uninstalledData = true;
$installedDataDiffs = [];
$uninstalledDataDiffs = [];
$reviewedDataDiffs = [];
$scopeDiffs = [];
$scopeChange = false;
}
/*
* MIGRATION COMPARISON
*/
// migration.json is just a single page, so json differs from data.json by missing square brackets.
// Add the square brackets to the migration.json so that we can use the same compactArray() method as we use for data.json
if($this->data) {
$newMigFile = (file_exists($migrationPath . 'new/migration.json'))
? '[' . file_get_contents($migrationPath . 'new/migration.json') . ']' : null;
$oldMigFile = (file_exists($migrationPath . 'old/migration.json'))
? '[' . file_get_contents($migrationPath . 'old/migration.json') . ']' : null;
if($migrationObjectJson) {
file_put_contents($cachePath . 'migration.json', $migrationObjectJson);
} else {
if(is_dir($cachePath) and file_exists($cachePath . 'migration.json'))
unlink($cachePath . 'migration.json');
}
$cmpMigFile = (file_exists($cachePath . 'migration.json'))
? '[' . file_get_contents($cachePath . 'migration.json') . ']' : null;
//bd('new migration');
$R = $this->array_compare($this->compactArray(wireDecodeJSON($newMigFile)), $this->compactArray(wireDecodeJSON($cmpMigFile)));
$R = $this->pruneImageFields($R, 'new');
$installedMigration = (!$R);
$installedMigrationDiffs = $R;
//bd('old migration');
$R2 = $this->array_compare($this->compactArray(wireDecodeJSON($oldMigFile)), $this->compactArray(wireDecodeJSON($cmpMigFile)));
$R2 = $this->pruneImageFields($R2, 'old');
$uninstalledMigration = (!$R2);
$uninstalledMigrationDiffs = $R2;
// This comparison only looks at the migration elements that affect the database
if($oldMigFile) {
//bd('migration key only');
$R3 = $this->array_compare($this->compactArray(wireDecodeJSON($oldMigFile), true),
$this->compactArray(wireDecodeJSON($cmpMigFile), true));
$R3 = $this->pruneImageFields($R3, 'old');
$uninstalledMigrationKey = (!$R3);
$uninstalledMigrationKeyDiffs = $R3;
} else {
$uninstalledMigrationKey = true;
$uninstalledMigrationKeyDiffs = [];
}
} else {
$installedMigration = true;
$uninstalledMigration = true;
$installedMigrationDiffs = [];
$uninstalledMigrationDiffs = [];
$uninstalledMigrationKey = true;
$uninstalledMigrationKeyDiffs = [];
}
/*
* REPORT THE STATUS
*/
$installed = ($installedData and $installedMigration);
$uninstalled = ($uninstalledData and $uninstalledMigration);
$locked = ($this->meta('locked'));
if($this->meta('installable')) {
if($installed) {
if($uninstalled) {
$status = 'void';
} else {
$status = 'installed';
}
} else if($uninstalled) {
$status = 'uninstalled';
} else if($locked) {
$status = 'superseded';
} else {
$status = 'indeterminate';
}
} else {
if($installed) {
$status = 'exported';
} else if($locked) {
$status = 'superseded';
} else {
$status = 'pending';
}
}
$result = [
'status' => $status,
'scopeChange' => $scopeChange,
'scopeDiffs' => $scopeDiffs,
'installed' => $installed,
'uninstalled' => $uninstalled,
'installedData' => $installedData,
'uninstalledData' => $uninstalledData,
'installedDataDiffs' => $installedDataDiffs,
'uninstalledDataDiffs' => $uninstalledDataDiffs,
'installedMigration' => $installedMigration,
'installedMigrationDiffs' => $installedMigrationDiffs,
'uninstalledMigration' => $uninstalledMigration,
'uninstalledMigrationDiffs' => $uninstalledMigrationDiffs,
'uninstalledMigrationKey' => $uninstalledMigrationKey,
'uninstalledMigrationKeyDiffs' => $uninstalledMigrationKeyDiffs,
'reviewedDataDiffs' => $reviewedDataDiffs,
'timestamp' => $this->wire()->datetime->date()
];
//bd($result, 'result in exportData');
}
$this->meta('installedStatus', $result);
if(!$this->meta('installable') and $newOld == 'new')
$this->wire()->pages->___save($this, array('noHooks' => true, 'quiet' => true)); // to ensure reload after export
// Remove the hook that was added at the start of this method
$this->removeHook($exportHookId);
return $result;
}
}
public function modifiedJsonEncode($data) {
$json = wireEncodeJSON($data, true, true);
$json = str_replace('\t', ' ', $json);
//bd($json, 'modified json');
return $json;
}
/**
* Cycle through items in a migration and get the data for each
* If $compareType is 'old' then reverse the order and swap 'new' and 'removed' actions
*
* @param $itemRepeater // The migration item
* @param $excludeAttributes
* @param $excludeFields
* @param $newOld // 'new'. 'old', or 'compare'
* @param $compareType // 'new' to create install data; 'old' to create uninstall data
* @return array|array[]
* @throws WireException
* @throws WirePermissionException
*
*/
protected function cycleItems($itemRepeater, $excludeAttributes, $excludeFields, $newOld, $compareType) {
$data = [];
$count = 0;
$item = [];
$files = [];
if(!$itemRepeater || $itemRepeater->isUnpublished) return ['data' => '', 'files' => ''];
if($compareType == 'old') $itemRepeater = $itemRepeater->reverse();
foreach($itemRepeater as $repeaterItem) {
/* @var $repeaterItem RepeaterDbMigrateItemPage */
$item = $this->populateItem($repeaterItem, ($compareType == 'old')); // swap new and removed if compareType is 'old'
//bd($item, 'item');
$count++;
$migrationItem = $this->getMigrationItemData($count, $item, $excludeAttributes, $excludeFields, $newOld, $compareType);
$data[] = $migrationItem['data'];
//bd($migrationItem['files'], 'migrationItem files');
$files = array_merge_recursive($files, $migrationItem['files']);
//bd($files, 'files at end of cycleItems');
}
//bd($data, 'data returned by cycleItems for ' . $newOld);
return ['data' => $data, 'files' => $files];
}
/**
* Get the migration data for an individual item
*
* @param $k // The sequence number (starting at 0) of the migration item within the migration
* @param $item
* @param $excludeAttributes
* @param $excludeFields
* @param $newOld // 'new'. 'old', or 'compare'
* @param $compareType // 'new' to create install data; 'old' to create uninstall data
* @return array
* @throws WireException
* @throws WirePermissionException
*
*/
protected function getMigrationItemData($k, $item, $excludeAttributes, $excludeFields, $newOld, $compareType) {
/*
* Initial checks
*/
$files = [];
$empty = ['data' => [], 'files' => []];
$item['action'] = (isset($item['action'])) ? $item['action'] : 'changed';
if(!$item['type'] or !$item['name']) {
if($newOld == 'new' and $compareType == 'new') {
$this->wire()->session->warning($this->_('Missing values for item ') . $k);
//bd($item, 'missing values in item');
}
return $empty;
}
if(!$this->id) return $empty;
$itemName = $item['name']; // This will be the name in the source environment
//bd($itemName, 'itemName');
/*
* Convert selectors into individual items where they exist in the current database
*/
$expanded = $this->expandItem($item); // $expanded['items'] is the list of items derived from the selector
$selector = ($expanded['selector']); // true if original item was a selector
$old = $expanded['old']; // Not currently used
if($selector and $item['oldName']) {
$this->wire()->session->warning($this->_('Old name is not applicable when a selector is used. It will be treated as being blank.'));
$item['oldName'] = '';
}
/*
* Check old names (where name is not a selector)
*/
if(!$selector) {
if($item['oldName']) {
$isOld = $this->wire($item['type'])->get($item['oldName']);
$isNew = $this->wire($item['type'])->get($item['name']);
if($isNew and $isNew->id and $isOld and $isOld->id) {
$this->wire()->session->warning(sprintf($this->_('Both new name (%1$s) and old name (%2$s) exist in the database. Please use unique names.'), $item['name'], $item['oldName']));
return $empty;
}
if($isOld and $isOld->id) {
$itemName = $item['oldName'];
//bd($item['oldName'], 'using old name');
} else if(!$isNew or !$isNew->id) {
$this->wire()->session->warning(sprintf($this->_('Neither new name (%1$s) nor old name (%2$s) exist in the database.'), $item['name'], $item['oldName']));
return $empty;
}
}
}
/*
* Should anything have been found and was it?
*/
$expandedItems = $expanded['items']; // the list of items derived from the selector (or just from the name/path)
$noFind = (count($expandedItems) == 0); // name/path or selector yields no results
$shouldExist = $this->shouldExist($item['action'], $compareType); //should the item exist as a database object in this context?
//bd(['item' => $item, 'compareType' => $compareType, 'shouldExist' => $shouldExist, 'noFind' => $noFind, 'OK' => ($shouldExist xor $noFind)], "Test existence");
if(!$this->meta('installable')) { // i.e. we are in the source database
if($noFind and $shouldExist) $this->wire()->session->warning($this->name . ': ' .
sprintf($this->_('No %s object for '), $item['type']) . $itemName);
if(!$noFind and !$shouldExist) $this->wire()->session->warning("{$this->name}: " .
sprintf($this->_('There is already a %1s object for %2s but none should exist'), $item['type'], $itemName));
}
/*
* Where there is nothing in this database for the item, just return the array keys with no values
*/
if($noFind and ($item['action'] == 'removed' or $item['action'] == 'new')) {
$data = [$item['type'] => [$item['action'] => [$itemName => []]]];
//bd($data, 'Returning data for new/removed which do not exist in current db');
// $flag indicates which actions should have associated item in the current database
if($this->meta('installable')) { // target database
$flag = ($compareType == 'new') ? 'removed' : 'new';
} else { // source database
$flag = 'new';
}
//bd(['action' => $item['action'], 'newOld' => $newOld, 'compareType' => $compareType, 'flag' => $flag]);
if(isset($flag) && $item['action'] == $flag) {
//bd(['action' => $item['action'], 'flag' => $flag], 'Reporting exception');
//bd(debug::backtrace(), 'backtrace');
$this->wire()->session->warning(sprintf($this->_('Selector "%s" did not select any items'), $item['name']));
}
return ['data' => $data, 'files' => []];
}
if($noFind) {
// 'changed' items should exist in all contexts
//bd('No object for ' . $itemName . '.');
$this->wire()->session->warning($this->name . ': ' . sprintf($this->_('No %s object for '), $item['type']) . $itemName);
return $empty;
}
/*
* If we got this far, then we should have found some matching objects in the current database
* So get the export data for them
*/
$objectData = [];
foreach($expandedItems as $expandedItem) {
//bd($expandedItem, 'expandedItem');
$object = $expandedItem['object'];
// (For non-draft migrations) check object existence if migration is not exported/installed (draft migrations are created from comparisons)
if(!$this->meta('draft') and (!$this->meta('installedStatus') or !$this->meta('installedStatus')['installed'])) {
if(!$object or !$object->id or $object->id == 0 and $newOld != 'compare') {
if($shouldExist) $this->wire()->session->warning($this->name . ': ' .
sprintf($this->_('No %s object for '), $item['type']) . $itemName);
$data = [$item['type'] => [$item['action'] => [$itemName => []]]];
return ['data' => $data, 'files' => []];
} else if(!$shouldExist and $newOld == 'new') { // 2nd condition is to avoid double reporting for new and old
$this->wire()->session->warning("{$this->name}: " .
sprintf($this->_('There is already a %1s object for %2s but none should exist'), $item['type'], $itemName));
}
}
/*
* GET DATA FOR ITEMS IN THE DATABASE
*/
$name = $expandedItem['name'];
$oldName = $expandedItem['oldName'];
$key = ($oldName) ? $name . '|' . $oldName : $name;
if($item['type'] == 'pages') {
$exportObjects = $this->getExportPageData($k, $key, $object, $excludeFields);
} else {
$exportObjects = $this->getExportStructureData($k, $key, $item, $object, $excludeAttributes, $newOld, $compareType);
}
$objectData = array_merge($objectData, $exportObjects['data']);
//bd($exportObjects['files'], '$exportObjects[files]');
$files = array_merge($files, $exportObjects['files']);
//bd($objectData, 'object data');
}
/*
* Return the result
*/
$data = [$item['type'] => [$item['action'] => $objectData]];
return ['data' => $data, 'files' => $files];
}
/**
* Return a list of all fields of the given types
* (used to convert excluded types into excluded names)
*
* @param array $types
* @return array
* @throws WireException
*
*/
protected function excludeFieldsForTypes(array $types) {
$fullTypes = [];
foreach($types as $type) {
$fullTypes[] = (!strpos($type, 'Fieldtype')) ? 'Fieldtype' . $type : $type;
}
$exclude = [];
$fields = $this->wire()->fields->getAll();
foreach($fields as $field) {
if(in_array($field->type->name, $fullTypes)) $exclude[] = $field->name;
if(!is_object($field)) throw new WireException("bad field $field");
}
return $exclude;
}
/**
* Take migration items (provided as an array of attributes) and expand any which are selectors
* Return the (expanded) item object(s) and name(s) in an array in format
* ['selector' => true/false, 'old' => true/false, 'items' => ['object' => object, 'name' => name, 'oldName' => oldName]]
* where 'selector' denotes that the name was a selector and 'old' denotes that the 'oldName' has been necessary to find the object
*
* @param $itemArray
* @return array
* @throws WireException
*
*/
public function expandItem($itemArray) {
/* @var $item RepeaterDbMigrateItemPage */
//bd($itemArray, 'In expandItem with ' . $itemArray['name']);
$type = $itemArray['type'];
$result = [];
$result['selector'] = false;
$result['old'] = false;
$empty = ['selector' => false, 'old' => false, 'items' => []];
if($type == 'pages') {
$testName = $this->wire()->sanitizer->path($itemArray['name']);
$nameType = 'path';
} else {
$testName = $this->wire()->sanitizer->validate($itemArray['name'], 'name');
$nameType = 'name';
}
if(!$testName) {
//bd($itemArray['name'], 'Selector provided instead of path/name');
// we have a selector
try {
if($type == 'pages') {
$objects = $this->wire($type)->find($itemArray['name'] . ", include=all"); // $itemArray['name'] is a selector
} else {
$objects = $this->wire($type)->find($itemArray['name']);
}
// for pages, sort by path if required
//bd($itemArray['name'], 'Name for sort path test');
$objects = $objects->getArray(); // convert to plain array
//bd($objects);
if($type == 'pages' and strpos($itemArray['name'], 'sort=path')) {
usort($objects, function($a, $b) {
return strnatcmp($a->path, $b->path);
});
}
$result['items'] = [];
foreach($objects as $object) {
if($object->id) $result['items'][] = ['object' => $object, 'name' => $object->$nameType, 'oldName' => ''];
}
$result['selector'] = true;
} catch(WireException $e) {
//bd($itemArray, 'invalid selector');
$this->wire()->session->error($this->_('Invalid selector: ') . $itemArray['name']);
return $empty;
}
} else {
try {
$result['items'] = [];
$oldName = ($itemArray['oldName']) ?: $itemArray['name'];
$object = $this->wire($type)->get($itemArray['name']);
if(!$object or !$object->id) {
/*
* Hack introduced to deal with failure to get bootstrap in earlier PW versions
* (see https://processwire.com/talk/topic/25940-issue-with-pages-getpathname-in-pw30148/?tab=comments#comment-216359)
*/
$s1 = basename($itemArray['name']);
$s2 = dirname($itemArray['name']);
$object = $this->wire()->pages->get("name=$s1, parent=$s2");
}
if(!$object or !$object->id) {
$object = $this->wire($type)->get($oldName);
$result['old'] = true;
}
if($object and $object->id)
$result['items'] = [['object' => $object, 'name' => $itemArray['name'], 'oldName' => $itemArray['oldName']]];
} catch(WireException $e) {
//bd($itemArray, 'invalid name/path');
$this->wire()->session->error($this->_('Invalid name/path: ') . $itemArray['name']);
return $empty;
}
}
//bd($result, 'expansion result');
return $result;
}
/**
* Determine whether or not an item should exist in the current database
* * Changed items should exist in source and target
* * New items should exist in the source but not the target
* * Removed items should exist in the target but not the source
*
* Note that if $this is 'installable' ($this->meta('installable) ) then we are in its target database, else we are in its source database
*
* If $compareType is 'new' then we are using the migration items as defined in the page
* If $compareType is 'old' then we are using the mirror terms (reverse order and 'new' and 'removed' swapped)
*
* @param $compareType
* @param $action
* @return boolean
*
*/
protected function shouldExist($action, $compareType) {
if($action == 'changed') return true;
$actInd = ($action == 'new') ? 1 : 0;
$newInd = ($compareType == 'new') ? 1 : 0;
$sourceInd = (!$this->meta('installable')) ? 1 : 0;
$ind = $actInd + $newInd + $sourceInd;
return ($ind & 1); // test if odd by bit checking.
}
/**
* Get array of page data, with some limitations to prevent unnecessary mismatching
*
* @param $k
* @param $key
* @param $exportPage
* @param $excludeFields
* @return array[]|null[]
* @throws WireException
*
*/
protected function getExportPageData($k, $key, $exportPage, $excludeFields) {
if($k !== null) { // $k=null for migration page itself. Restrict fields must not operate on migration page.
$restrictFields = $this->restrictFields();
} else {
$restrictFields = [];
}
$data = array();
$files = array();
$oldPage = '';
$repeaterPages = array();
//bd($exportPage, 'exportpage');
if(!$exportPage
or !is_a($exportPage, 'Processwire\Page')
or !$exportPage->id)
return ['data' => [], 'files' => [], 'repeaterPages' => []];
// Now we are sure we have a page object we can continue
$attrib = [];
$attrib['template'] = $exportPage->template->name;
$attrib['parent'] = ($exportPage->parent->path) ?: $exportPage->parent->id; // id needed in case page is root (will be 0)
$attrib['status'] = $exportPage->status;
$attrib['name'] = $exportPage->name;
$attrib['id'] = $exportPage->id;
$this->getAllFieldData($exportPage, $restrictFields, $excludeFields, $attrib, $files);
foreach($excludeFields as $excludeField) {
unset($attrib[$excludeField]);
}
$data[$key] = $attrib;
//bd($data, 'returning data');
return ['data' => $data, 'files' => $files, 'repeaterPages' => $repeaterPages];
}
/**
* Get array of restricted fields - i.e. only these fields to be considered in migrating pages
*
* @return array
* @throws WireException
*/
public function restrictFields() {
if(!$this->dbMigrateRestrictFields) return [];
$restrictFields = array_filter($this->wire()->sanitizer->array(
str_replace(' ', '', $this->dbMigrateRestrictFields),
'fieldName',
['delimiter' => ','])
);
return $restrictFields;
}
/**
* @param $exportPage Page
* @param $restrictFields array
* @param $excludeFields array
* @param $attrib array
* @param $files array
* @param $fresh boolean Use fresh pages from DB throughout
* @return void
*/
public function getAllFieldData($exportPage, $restrictFields, $excludeFields, &$attrib, &$files, $fresh = false) {
if(!$exportPage || !$exportPage->id) return;
foreach($exportPage->getFields() as $field) {
$name = $field->name;
//bd($restrictFields, '$restrictFields');
//bd($name, '$name');
if((count($restrictFields) > 0 && !in_array($name, $restrictFields)) || in_array($name, $excludeFields)) continue;
$exportPageDetails = $this->getFieldData($exportPage, $field, $restrictFields, $excludeFields, $fresh);
if(isset($exportPageDetails['attrib'])) $attrib = array_merge_recursive($attrib, $exportPageDetails['attrib']);
//bd([$exportPage, $field, $attrib], 'exportPage, field, attrib in getAllFieldData');
if(isset($exportPageDetails['files'])) $files[] = $exportPageDetails['files'];
//bd($files, 'files in getAllFieldData');
}
}
/**
* Get field data (as an array) for a page field
* NB Repeater fields cause this method to be called recursively
*
* @param $page
* @param $field
* @param array $restrictFields
* @param array $excludeFields
* @param bool $fresh Use fresh pages from DB throughout
* @return array
*
*/
public function getFieldData($page, $field, $restrictFields = [], $excludeFields = [], $fresh = false) {
$attrib = [];
$files = [];
$name = $field->name;
if($fresh) $page = $this->wire()->pages->getFresh($page->id);
if(!$page->data($name)) $page->set($name, $page->$field);
// $page = $this->pages()->findJoin("id={$page->id}", "$name")->first();
if(!$page->hasField($name)) { // NB changed from (1) if(!$page->data($name) and then from (2) $page->data($name) === null. Review options if this causes probs, but remember need to return empty values if there is no item
// NB (2) Must be === otherwise items with value=0 get discarded as if they had no value and cause mismatch errors in target
//bd([$page, $name], 'returning empty');
return ['attrib' => $attrib, 'files' => $files];
}
//bd([$page, $name], 'continuing with getFieldData');
switch($field->type) {
case 'FieldtypePage' :
// case 'FieldtypePageTable' :
$attrib[$name] = $this->getPageRef($page->$field);
break;
case 'FieldtypePageTable' : // NB Not sure why I replaced the above with this, which returns name and parent path separately
$contents = [];
foreach($page->$field as $items) {
//bd($item, 'pagetable item');
$contents['items'] = [];
$items = $page->$field->getArray();
foreach($items as $item) {
$contents['items'][] = ['name' => $item['name'], 'parent' => $item['parent']->path];
}
$attrib[$name] = $contents;
}
break;
case 'FieldtypeFields':
$contents = [];
foreach($page->$field as $fId) {
$f = $this->wire->fields->get($fId);
$contents[] = $f->name;
}
$attrib[$name] = $contents;
break;
case 'FieldtypeTemplates' :
$contents = [];
foreach($page->$field as $tId) {
$t = $this->wire->templates->get($tId);
$contents[] = $t->name;
}
$attrib[$name] = $contents;
break;
case 'FieldtypeImage' :
case 'FieldtypeFile' :
$contents = [];
$contents['url'] = ($page->$field && $page->$field->url) ? $page->$field->url : '';
$contents['path'] = ($page->$field && $page->$field->path) ? $page->$field->path : '';
$contents['items'] = [];
$contents['custom_fields'] = [];
if($page->$field && (get_class($page->$field) == "ProcessWire\Pageimage" || get_class($page->$field) == "ProcessWire\Pagefile")) {
$items = [$page->$field]; // need it to be an array if only singular image or file
} else {
$items = ($page->$field) ? $page->$field->getArray() : [];
}
$files[$page->id] = [];
foreach($items as $item) {
$itemArray = $item->getArray();
// don't want these in item as they won't necessarily match in target system
unset($itemArray['modified']);
unset($itemArray['created']);
unset($itemArray['modified_users_id']);
unset($itemArray['created_users_id']);
unset($itemArray['formatted']);
// If there are custom fields, capture these separately
$imageTemplate = $this->wire()->templates->get('field-' . $name);
if($imageTemplate) {
$imageTemplateName = $imageTemplate->name;
$itemArray['custom_fields']['template'] = $imageTemplateName;
$templateItems = $imageTemplate->fieldgroup;
foreach($templateItems as $templateItem) {
$templateItemName = $templateItem->name;
$itemArray['custom_fields']['items'][$templateItemName] = $item->$templateItemName;
}
}
$contents['items'][] = $itemArray; // sets unremoved items - basename, description, tags, filesize, as well as any custom fields
//
if($field->type == 'FieldtypeImage') {