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Sequenzia/app/controllers/HistoryController.php

231 lines
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PHP
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2013-10-27 01:06:58 +02:00
<?php
use Moebooru\Versioning as Versioned;
class HistoryController extends ApplicationController
{
public function index()
{
$this->helper('Tag', 'Post');
$search = trim($this->params()->search) ?: "";
$q = [
'keywords' => []
];
if ($search) {
foreach (explode(' ', $search) as $s) {
if (preg_match('/^(.+?):(.*)/', $s, $m)) {
$search_type = $m[1];
$param = $m[2];
if ($search_type == "user") {
$q['user'] = $param;
} elseif ($search_type == "change") {
$q['change'] = (int)$param;
} elseif ($search_type == "type") {
$q['type'] = $param;
} elseif ($search_type == "id") {
$q['id'] = (int)$param;
} elseif ($search_type == "field") {
# 'type' must also be set for this to be used.
$q['field'] = $param;
} else {
# pool'123'
$q['type'] = $search_type;
$q['id'] = (int)$param;
}
} else {
$q['keywords'][] = $s;
}
}
}
$inflector = Rails::services()->get('inflector');
if (!empty($q['type'])) {
$q['type'] = $inflector->pluralize($q['type']);
}
if (!empty($q['inner_type'])) {
$q['inner_type'] = $inflector->pluralize($q['inner_type']);
}
# If notes'id' has been specified, search using the inner key in history_changes
# rather than the grouping table in histories. We don't expose this in general.
# Searching based on hc.table_name without specifying an ID is slow, and the
# details here shouldn't be visible anyway.
if (array_key_exists('type', $q) and array_key_exists('id', $q) and $q['type'] == "notes") {
$q['inner_type'] = $q['type'];
$q['remote_id'] = $q['id'];
unset($q['type']);
unset($q['id']);
}
$query = History::none();
$hc_conds = [];
$hc_cond_params = [];
if (!empty($q['user'])) {
$user = User::where('name', $q['user'])->first();
if ($user) {
$query->where("histories.user_id = ?", $user->id);
} else {
$query->where("false");
}
}
if (!empty($q['id'])) {
$query->where("group_by_id = ?", $q['id']);
}
if (!empty($q['type'])) {
$query->where("group_by_table = ?", $q['type']);
}
if (!empty($q['change'])) {
$query->where("histories.id = ?", $q['change']);
}
if (!empty($q['inner_type'])) {
$q['inner_type'] = $inflector->pluralize($q['inner_type']);
$hc_conds[] = "hc.table_name = ?";
$hc_cond_params[] = $q['inner_type'];
}
if (!empty($q['remote_id'])) {
$hc_conds[] = "hc.remote_id = ?";
$hc_cond_params[] = $q['remote_id'];
}
if ($q['keywords']) {
$hc_conds[] = 'hc.value LIKE ?';
$hc_cond_params[] = '%' . implode('%', $q['keywords']) . '%';
}
if (!empty($q['field']) and !empty($q['type'])) {
# Look up a particular field change, eg. "type'posts' field'rating'".
# XXX: The WHERE id IN (SELECT id...) used to implement this is slow when we don't have
# anything } else { filtering the results.
$field = $q['field'];
$table = $q['type'];
# For convenience:
if ($field == "tags") {
$field = "cached_tags";
}
# Look up the named class.
if (!Versioned::is_versioned_class($cls)) {
$query->where("false");
} else {
$hc_conds[] = "hc.column_name = ?";
$hc_cond_params[] = $field;
# A changes that has no previous value is the initial value for that object. Don't show
# these changes unless they're different from the default for that field.
list ($default_value, $has_default) = $cls::versioning()->get_versioned_default($field);
if ($has_default) {
$hc_conds[] = "(hc.previous_id IS NOT NULL OR value <> ?)";
$hc_cond_params[] = $default_value;
}
}
}
if ($hc_conds) {
array_unshift($hc_cond_params, 'histories.id IN (SELECT history_id FROM history_changes hc JOIN histories h ON (hc.history_id = h.id) WHERE ' . implode(" AND ", $hc_conds) . ')');
call_user_func_array([$query, 'where'], $hc_cond_params);
}
if (!empty($q['type']) and empty($q['change'])) {
$this->type = $q['type'];
} else {
$this->type = "all";
}
# 'specific_history' => showing only one history
# 'specific_table' => showing changes only for a particular table
# 'show_all_tags' => don't omit post tags that didn't change
$this->options = [
'show_all_tags' => $this->params()->show_all_tags == "1",
'specific_object' => (!empty($q['type']) and !empty($q['id'])),
'specific_history' => !empty($q['change']),
];
$this->options['show_name'] = false;
if ($this->type != "all") {
$cn = $inflector->classify($this->type);
try {
if (Versioned::is_versioned_class($cls) && class_exists($cn)) {
$obj = new $cn();
if (method_exists($obj, "pretty_name"))
$this->options['show_name'] = true;
}
} catch (Rails\Loader\Exception\ExceptionInterface $e) {
}
}
$this->changes = $query->order("histories.id DESC")
->select('*')
->paginate($this->page_number(), 20);
# If we're searching for a specific change, force the display to the
# type of the change we found.
if (!empty($q['change']) && $this->changes->any()) {
$this->type = $inflector->pluralize($this->changes[0]->group_by_table);
}
$this->render(['action' => 'index']);
}
public function undo()
{
$ids = explode(',', $this->params()->id);
$this->changes = HistoryChange::emptyCollection();
foreach ($ids as $id)
$this->changes[] = HistoryChange::where("id = ?", $id)->first();
$histories = [];
$total_histories = 0;
foreach ($this->changes as $change) {
if (isset($histories[$change->history_id]))
continue;
$histories[$change->history_id] = true;
$total_histories += 1;
}
if ($total_histories > 1 && !$this->current_user->is_privileged_or_higher()) {
$this->respond_to_error("Only privileged users can undo more than one change at once", ['status' => 403]);
return;
}
$errors = [];
History::undo($this->changes, $this->current_user, $this->params()->redo == "1", $errors);
$error_texts = [];
$successful = 0;
$failed = 0;
foreach ($this->changes as $change) {
$objectHash = spl_object_hash($change);
if (empty($errors[$objectHash])) {
$successful += 1;
continue;
}
$failed += 1;
switch ($errors[$objectHash]) {
case 'denied':
$error_texts[] = "Some changes were not made because you do not have access to make them.";
break;
}
}
$error_texts = array_unique($error_texts);
$this->respond_to_success("Changes made.", ['action' => "index"], ['api' => ['successful' => $successful, 'failed' => $failed, 'errors' => $error_texts]]);
}
}