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<?php |
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/* A class for doing things with single comments. |
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To access stuff about an existing comment you can do something like: |
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$COMMENT = new COMMENT(37); |
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$COMMENT->display(); |
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Where '37' is the comment_id. |
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To create a new comment you should get a $data array prepared of |
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the key/value pairs needed to create a new comment and do: |
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$COMMENT = new COMMENT; |
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$COMMENT->create ($data); |
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You can delete a comment by doing $COMMENT->delete() (it isn't actually |
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deleted from the database, just set to invisible. |
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You can also do $COMMENT->set_modflag() which happens when a user |
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posts a report about a comment. The flag is unset when/if the report is |
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rejected. |
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*/ |
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class COMMENT { |
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public $comment_id = ''; |
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public $user_id = ''; |
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public $epobject_id = ''; |
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public $body = ''; |
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public $posted = ''; |
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public $visible = false; |
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public $modflagged = null; // Is a datetime when set. |
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public $firstname = ''; // Of the person who posted it. |
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public $lastname = ''; |
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public $url = ''; |
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// So that after trying to init a comment, we can test for |
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// if it exists in the DB. |
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public $exists = false; |
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public function __construct($comment_id = '') { |
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$this->db = new ParlDB(); |
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// Set in init.php |
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if (ALLOWCOMMENTS == true) { |
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$this->comments_enabled = true; |
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} else { |
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$this->comments_enabled = false; |
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} |
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if (is_numeric($comment_id)) { |
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// We're getting the data for an existing comment from the DB. |
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$q = $this->db->query( |
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"SELECT user_id, |
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epobject_id, |
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body, |
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posted, |
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visible, |
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modflagged |
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FROM comments |
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WHERE comment_id=:comment_id", |
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[':comment_id' => $comment_id] |
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)->first(); |
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if ($q) { |
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$this->comment_id = $comment_id; |
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$this->user_id = $q['user_id']; |
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$this->epobject_id = $q['epobject_id']; |
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$this->body = $q['body']; |
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$this->posted = $q['posted']; |
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$this->visible = $q['visible']; |
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$this->modflagged = $q['modflagged']; |
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// Sets the URL and username for this comment. Duh. |
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$this->_set_url(); |
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$this->_set_username(); |
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$this->exists = true; |
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} else { |
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$this->exists = false; |
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} |
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} |
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} |
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// Use these for accessing the object's variables externally. |
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public function comment_id() { |
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return $this->comment_id; |
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} |
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public function user_id() { |
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return $this->user_id; |
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} |
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public function epobject_id() { |
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return $this->epobject_id; |
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} |
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public function body() { |
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return $this->body; |
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} |
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public function posted() { |
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return $this->posted; |
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} |
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public function visible() { |
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return $this->visible; |
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} |
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public function modflagged() { |
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return $this->modflagged; |
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} |
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public function exists() { |
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return $this->exists; |
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} |
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public function firstname() { |
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return $this->firstname; |
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} |
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public function lastname() { |
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return $this->lastname; |
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} |
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public function url() { |
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return $this->url; |
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} |
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public function comments_enabled() { |
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return $this->comments_enabled; |
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} |
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public function create($data) { |
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// Inserts data for this comment into the database. |
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// $data has 'epobject_id' and 'body' elements. |
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// Returns the new comment_id if successful, false otherwise. |
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global $THEUSER, $PAGE; |
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if ($this->comments_enabled() == false) { |
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$PAGE->error_message("Sorry, the posting of annotations has been temporarily disabled."); |
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return; |
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} |
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if (!$THEUSER->is_able_to('addcomment')) { |
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$message = [ |
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'title' => 'Sorry', |
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'text' => 'You are not allowed to post annotations.', |
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]; |
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$PAGE->error_message($message); |
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return false; |
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} |
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if (!is_numeric($data['epobject_id'])) { |
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$message = [ |
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'title' => 'Sorry', |
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'text' => "We don't have an epobject id.", |
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]; |
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$PAGE->error_message($message); |
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return false; |
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} |
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if ($data['body'] == '') { |
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$message = [ |
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'title' => 'Whoops!', |
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'text' => "You haven't entered an annotation!", |
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]; |
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$PAGE->error_message($message); |
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return false; |
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} |
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// OK, let's get on with it... |
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// Tidy up the HTML tags |
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// (but we don't make URLs into links; only when displaying the comment). |
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$body = filter_user_input($data['body'], 'comment'); // In utility.php |
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$posted = date('Y-m-d H:i:s', time()); |
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$q_gid = $this->db->query("select gid from hansard where epobject_id = :epobject_id", [':epobject_id' => $data['epobject_id']]); |
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$data['gid'] = $q_gid->field(0, 'gid'); |
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$q = $this->db->query( |
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"INSERT INTO comments |
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(user_id, epobject_id, body, posted, visible, original_gid) |
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VALUES |
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( |
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:user_id, |
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:epobject_id, |
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:body, |
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:posted, |
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1, |
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:gid |
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)", |
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[ |
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':user_id' => $THEUSER->user_id(), |
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':epobject_id' => $data['epobject_id'], |
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':body' => $body, |
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':posted' => $posted, |
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':gid' => $data['gid'], |
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] |
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); |
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if ($q->success()) { |
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// Set the object varibales up. |
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$this->comment_id = $q->insert_id(); |
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$this->user_id = $THEUSER->user_id(); |
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$this->epobject_id = $data['epobject_id']; |
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$this->body = $data['body']; |
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$this->posted = $posted; |
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$this->visible = 1; |
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return $this->comment_id(); |
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} else { |
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return false; |
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} |
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} |
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public function display($format = 'html', $template = 'comments') { |
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$data['comments'][0] = [ |
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'comment_id' => $this->comment_id, |
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'user_id' => $this->user_id, |
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'epobject_id' => $this->epobject_id, |
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'body' => $this->body, |
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'posted' => $this->posted, |
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'modflagged' => $this->modflagged, |
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'url' => $this->url, |
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'firstname' => $this->firstname, |
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'lastname' => $this->lastname, |
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'visible' => $this->visible, |
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]; |
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// Use the same renderer as the COMMENTLIST class. |
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$COMMENTLIST = new COMMENTLIST(); |
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$COMMENTLIST->render($data, $format, $template); |
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} |
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public function set_modflag($switch) { |
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// $switch is either 'on' or 'off'. |
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// The comment's modflag goes to on when someone reports the comment. |
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// It goes to off when a commentreport has been resolved but the |
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// comment HASN'T been deleted. |
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global $PAGE; |
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if ($switch == 'on') { |
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$date = gmdate("Y-m-d H:i:s"); |
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$flag = "'$date'"; |
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} elseif ($switch == 'off') { |
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$date = null; |
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$flag = 'NULL'; |
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} else { |
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$PAGE->error_message("Why are you trying to switch this comment's modflag to '" . _htmlentities($switch) . "'!"); |
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} |
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$q = $this->db->query("UPDATE comments |
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SET modflagged = $flag |
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WHERE comment_id = '" . $this->comment_id . "' |
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"); |
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if ($q->success()) { |
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$this->modflagged = $date; |
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return true; |
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} else { |
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$message = [ |
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'title' => 'Sorry', |
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'text' => "We couldn't update the annotation's modflag.", |
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]; |
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$PAGE->error_message($message); |
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return false; |
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} |
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} |
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public function delete() { |
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// Mark the comment as invisible. |
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global $THEUSER, $PAGE; |
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if ($THEUSER->is_able_to('deletecomment')) { |
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$q = $this->db->query("UPDATE comments SET visible = '0' WHERE comment_id = '" . $this->comment_id . "'"); |
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if ($q->success()) { |
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return true; |
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} else { |
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$message = [ |
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'title' => 'Sorry', |
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'text' => "We were unable to delete the annotation.", |
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]; |
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$PAGE->error_message($message); |
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return false; |
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} |
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} else { |
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$message = [ |
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'title' => 'Sorry', |
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'text' => "You are not authorised to delete annotations.", |
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]; |
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$PAGE->error_message($message); |
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return false; |
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} |
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} |
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public function _set_url() { |
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global $hansardmajors; |
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// Creates and sets the URL for the comment. |
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if ($this->url == '') { |
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$q = $this->db->query( |
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"SELECT major, |
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gid |
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FROM hansard |
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WHERE epobject_id = :epobject_id", |
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[':epobject_id' => $this->epobject_id] |
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)->first(); |
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if ($q) { |
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// If you change stuff here, you might have to change it in |
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// $COMMENTLIST->_get_comment_data() too... |
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$gid = fix_gid_from_db($q['gid']); // In includes/utility.php |
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$major = $q['major']; |
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$page = $hansardmajors[$major]['page']; |
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$URL = new \MySociety\TheyWorkForYou\Url($page); |
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$URL->insert(['id' => $gid]); |
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$this->url = $URL->generate() . '#c' . $this->comment_id; |
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} |
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} |
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} |
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public function _set_username() { |
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// Gets and sets the user's name who posted the comment. |
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if ($this->firstname == '' && $this->lastname == '') { |
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$q = $this->db->query( |
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"SELECT firstname, |
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lastname |
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FROM users |
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WHERE user_id = :user_id", |
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[':user_id' => $this->user_id] |
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)->first(); |
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if ($q) { |
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$this->firstname = $q['firstname']; |
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$this->lastname = $q['lastname']; |
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} |
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} |
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} |
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} |
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