post comments, refactor post loading, hide load more btn

db/rest/comment/api_comment.sql

@@ -0,0 +1,15 @@
+CREATE VIEW api.comment AS
+	SELECT
+		c.id,
+		c.user_id,
+		c.post_id,
+		c.content,
+		c.date
+	FROM
+		admin.comment c
+	ORDER BY id ASC;
+
+GRANT SELECT ON TABLE api.comment
+	TO rest_anon, rest_user;
+GRANT SELECT ON TABLE admin.comment
+	TO rest_anon, rest_user;

db/rest/comment/api_comment_delete.sql

@@ -0,0 +1,31 @@
+CREATE FUNCTION _api.comment_delete()
+RETURNS TRIGGER
+LANGUAGE plpgsql VOLATILE
+AS $BODY$
+DECLARE
+	_user_id INTEGER;
+BEGIN
+	_user_id = _api.get_user_id();
+
+	IF OLD.user_id <> _user_id THEN
+		PERFORM _api.raise_deny();
+	END IF;
+
+	DELETE FROM admin.comment
+	WHERE user_id = _user_id
+	AND id = OLD.id;
+END
+$BODY$;
+
+GRANT EXECUTE ON FUNCTION _api.comment_delete()
+	TO rest_user;
+GRANT DELETE ON TABLE api.comment
+	TO rest_user;
+GRANT DELETE ON TABLE admin.comment
+	TO rest_user;
+
+CREATE TRIGGER api_comment_delete_trgr
+	INSTEAD OF DELETE
+			ON api.comment
+			FOR EACH ROW
+				EXECUTE PROCEDURE _api.comment_delete();

db/rest/comment/api_comment_insert.sql

@@ -0,0 +1,56 @@
+CREATE FUNCTION _api.comment_insert()
+RETURNS TRIGGER
+LANGUAGE plpgsql VOLATILE
+AS $BODY$
+DECLARE
+	_user_id INTEGER;
+BEGIN
+	_user_id = _api.get_user_id();
+
+	NEW.content	:= _api.trim(NEW.content);
+	PERFORM _api.validate_text(
+		_text => NEW.content,
+		_column => 'content',
+		_min => 1,
+		_max => 1024
+	);
+
+	PERFORM TRUE
+	FROM admin.post
+	WHERE id = NEW.post_id;
+
+	IF NOT FOUND THEN
+		PERFORM _api.raise(
+			_msg => 'api_null_post',
+			_err => 400
+		);
+	END IF;
+
+	INSERT INTO admin.comment (
+		user_id,
+		post_id,
+		content
+	) VALUES (
+		_user_id,
+		NEW.post_id,
+		NEW.content
+	);
+
+	RETURN NEW;
+END
+$BODY$;
+
+GRANT EXECUTE ON FUNCTION _api.comment_insert()
+	TO rest_user;
+GRANT INSERT ON TABLE api.comment
+	TO rest_user;
+GRANT INSERT ON TABLE admin.comment
+	TO rest_user;
+GRANT UPDATE ON TABLE sys.comment_id_seq
+	TO rest_user;
+
+CREATE TRIGGER api_comment_insert_trgr
+	INSTEAD OF INSERT
+			ON api.comment
+			FOR EACH ROW
+				EXECUTE PROCEDURE _api.comment_insert();

db/rest/comment/api_comment_update.sql

@@ -0,0 +1,50 @@
+CREATE FUNCTION _api.comment_update()
+RETURNS TRIGGER
+LANGUAGE plpgsql VOLATILE
+AS $BODY$
+DECLARE
+	_user_id INTEGER;
+	_changed BOOLEAN;
+BEGIN
+	_user_id = _api.get_user_id();
+	_changed = FALSE;
+
+	IF OLD.user_id <> _user_id THEN
+		PERFORM _api.raise_deny();
+	END IF;
+
+	NEW.content = COALESCE(NEW.content, OLD.content);
+	NEW.content := _api.trim(NEW.content);
+	PERFORM _api.validate_text(
+		_text => NEW.content,
+		_column => 'content',
+		_min => 1,
+		_max => 1024
+	);
+
+	IF NEW.content IS DISTINCT FROM OLD.content THEN
+		_changed = TRUE;
+	END IF;
+
+	IF _changed THEN
+		UPDATE admin.comment
+			SET content = NEW.content
+			WHERE id = OLD.id;
+	END IF;
+
+	RETURN NEW;
+END
+$BODY$;
+
+GRANT EXECUTE ON FUNCTION _api.comment_update()
+	TO rest_user;
+GRANT UPDATE ON TABLE api.comment
+	TO rest_user;
+GRANT UPDATE ON TABLE admin.comment
+	TO rest_user;
+
+CREATE TRIGGER api_comment_update_trgr
+	INSTEAD OF UPDATE
+			ON api.comment
+			FOR EACH ROW
+				EXECUTE PROCEDURE _api.comment_update();

db/rest/post/api_post.sql

@@ -3,10 +3,21 @@ CREATE VIEW api.post AS
 		p.id,
 		p.user_id,
 		p.content,
-		p.date
+		p.date,
+		COALESCE(c.cc, 0)
+			AS comment_count
 	FROM
 		admin.post p
-	ORDER BY id DESC;
+	LEFT JOIN (
+		SELECT
+			COUNT(c.id) as cc,
+			c.post_id
+		FROM
+			admin.comment c
+		GROUP BY
+			c.post_id
+	) c ON p.id = c.post_id
+	ORDER BY p.id DESC;
 
 GRANT SELECT ON TABLE api.post
 	TO rest_anon, rest_user;

db/rest/post/api_post_insert.sql

@@ -7,6 +7,8 @@ DECLARE
 BEGIN
 	_user_id = _api.get_user_id();
 
+	NEW.content	:= _api.trim(NEW.content);
+
 	PERFORM _api.validate_text(
 		_text => NEW.content,
 		_column => 'content',

db/rest/post/api_post_update.sql

@@ -3,13 +3,45 @@ RETURNS TRIGGER
 LANGUAGE plpgsql VOLATILE
 AS $BODY$
 DECLARE
-	_length INTEGER;
+	_user_id INTEGER;
+	_changed BOOLEAN;
 BEGIN
+	_user_id = _api.get_user_id();
+	_changed = FALSE;
+
+	IF OLD.user_id <> _user_id THEN
+		PERFORM _api.raise_deny();
+	END IF;
+
+	NEW.content = COALESCE(NEW.content, OLD.content);
+	NEW.content := _api.trim(NEW.content);
+	PERFORM _api.validate_text(
+		_text => NEW.content,
+		_column => 'content',
+		_min => 1,
+		_max => 4096
+	);
+
+	IF NEW.content IS DISTINCT FROM OLD.content THEN
+		_changed = TRUE;
+	END IF;
+
+	IF _changed THEN
+		UPDATE admin.post
+			SET content = NEW.content
+			WHERE id = OLD.id;
+	END IF;
+
 	RETURN NEW;
 END
 $BODY$;
 
-GRANT EXECUTE ON FUNCTION _api.post_update() TO rest_user;
+GRANT EXECUTE ON FUNCTION _api.post_update()
+	TO rest_user;
+GRANT UPDATE ON TABLE api.post
+	TO rest_user;
+GRANT UPDATE ON TABLE admin.post
+	TO rest_user;
 
 CREATE TRIGGER api_post_update_trgr
 	INSTEAD OF UPDATE

db/rest/rest.sql

@@ -14,6 +14,7 @@ GRANT USAGE ON SCHEMA api TO rest_anon, rest_user;
 GRANT USAGE ON SCHEMA _api TO rest_anon, rest_user;
 
 -- util
+\i /db/rest/util/_api_trim.sql;
 \i /db/rest/util/_api_serve_media.sql;
 \i /db/rest/util/_api_raise.sql;
 \i /db/rest/util/_api_raise_null.sql;
@@ -34,6 +35,12 @@ GRANT USAGE ON SCHEMA _api TO rest_anon, rest_user;
 \i /db/rest/post/api_post_update.sql;
 \i /db/rest/post/api_post_delete.sql;
 
+-- comment
+\i /db/rest/comment/api_comment.sql;
+\i /db/rest/comment/api_comment_insert.sql;
+\i /db/rest/comment/api_comment_update.sql;
+\i /db/rest/comment/api_comment_delete.sql;
+
 -- login
 \i /db/rest/login/_api_sign_jwt.sql;
 \i /db/rest/login/_api_verify_jwt.sql;

db/rest/user/api_user_insert.sql

@@ -5,6 +5,16 @@ AS $BODY$
 DECLARE
 	_length INTEGER;
 BEGIN
+
+	NEW.username	:= _api.trim(NEW.username);
+	NEW.password	:= _api.trim(NEW.password);
+	NEW.first_name	:= _api.trim(NEW.first_name);
+	NEW.last_name	:= _api.trim(NEW.last_name);
+	NEW.middle_name	:= _api.trim(NEW.middle_name);
+	NEW.email		:= _api.trim(NEW.email);
+	NEW.gender		:= _api.trim(NEW.gender);
+	NEW.profile_bio	:= _api.trim(NEW.profile_bio);
+
 	PERFORM _api.validate_text(
 		_text => NEW.username,
 		_column => 'username',
@@ -22,6 +32,7 @@ BEGIN
 	PERFORM _api.validate_text(
 		_text => NEW.password,
 		_column => 'password',
+		_min => 1,
 		_max => 256
 	);
 
@@ -82,8 +93,6 @@ BEGIN
 		email,
 		gender,
 		birth_date,
-		profile_avatar,
-		profile_banner,
 		profile_bio
 	) VALUES (
 		NEW.username,
@@ -94,8 +103,6 @@ BEGIN
 		NEW.email,
 		NEW.gender,
 		NEW.birth_date,
-		NEW.profile_avatar,
-		NEW.profile_banner,
 		NEW.profile_bio
 	);
 

db/rest/user/api_user_update.sql

@@ -3,15 +3,161 @@ RETURNS TRIGGER
 LANGUAGE plpgsql VOLATILE
 AS $BODY$
 DECLARE
-	_length INTEGER;
+	_user_id INTEGER;
+	_changed BOOLEAN;
 BEGIN
+	_user_id = _api.get_user_id();
+	_changed = FALSE;
+
+	IF OLD.id <> _user_id THEN
+		PERFORM _api.raise_deny();
+	END IF;
+
+	-- username
+	NEW.username = COALESCE(NEW.username, OLD.username);
+	NEW.username := _api.trim(NEW.username);
+	PERFORM _api.validate_text(
+		_text => NEW.username,
+		_column => 'username',
+		_min => 1,
+		_max => 24
+	);
+
+	IF NEW.username IS DISTINCT FROM OLD.username THEN
+		PERFORM TRUE FROM admin.user
+			WHERE username = NEW.username;
+		IF FOUND THEN
+			PERFORM _api.raise_unique('username');
+		END IF;
+		_changed = TRUE;
+	END IF;
+
+	-- password
+	SELECT password
+		INTO OLD.password
+		FROM admin.user
+		WHERE id = OLD.id;
+
+	NEW.password = COALESCE(NEW.password, OLD.password);
+	NEW.password := _api.trim(NEW.password);
+	PERFORM _api.validate_text(
+		_text => NEW.password,
+		_column => 'password',
+		_min => 1,
+		_max => 256
+	);
+
+	IF NEW.password IS DISTINCT FROM OLD.password THEN
+		_changed = TRUE;
+	END IF;
+
+	-- first name
+	NEW.first_name = COALESCE(NEW.first_name, OLD.first_name);
+	NEW.first_name := _api.trim(NEW.first_name);
+	PERFORM _api.validate_text(
+		_text => NEW.first_name,
+		_column => 'first_name',
+		_max => 256
+	);
+
+	IF NEW.first_name IS DISTINCT FROM OLD.first_name THEN
+		_changed = TRUE;
+	END IF;
+
+	-- last name
+	NEW.last_name = COALESCE(NEW.last_name, OLD.last_name);
+	NEW.last_name := _api.trim(NEW.last_name);
+	PERFORM _api.validate_text(
+		_text => NEW.last_name,
+		_column => 'last_name',
+		_max => 256
+	);
+
+	IF NEW.last_name IS DISTINCT FROM OLD.last_name THEN
+		_changed = TRUE;
+	END IF;
+
+	-- middle name
+	NEW.middle_name = COALESCE(NEW.middle_name, OLD.middle_name);
+	NEW.middle_name := _api.trim(NEW.middle_name);
+	PERFORM _api.validate_text(
+		_text => NEW.middle_name,
+		_column => 'middle_name',
+		_max => 256
+	);
+
+	IF NEW.middle_name IS DISTINCT FROM OLD.middle_name THEN
+		_changed = TRUE;
+	END IF;
+
+	-- email
+	NEW.email = COALESCE(NEW.email, OLD.email);
+	NEW.email := _api.trim(NEW.email);
+	PERFORM _api.validate_text(
+		_text => NEW.email,
+		_column => 'email',
+		_max => 256
+	);
+
+	IF NEW.email IS DISTINCT FROM OLD.email THEN
+		_changed = TRUE;
+	END IF;
+
+	-- gender
+	NEW.gender = COALESCE(NEW.gender, OLD.gender);
+	NEW.gender := _api.trim(NEW.gender);
+	PERFORM _api.validate_text(
+		_text => NEW.gender,
+		_column => 'gender',
+		_max => 256
+	);
+
+	IF NEW.gender IS DISTINCT FROM OLD.gender THEN
+		_changed = TRUE;
+	END IF;
+
+	-- birth date
+	NEW.birth_date = COALESCE(NEW.birth_date, OLD.birth_date);
+	IF NEW.birth_date IS DISTINCT FROM OLD.birth_date THEN
+		_changed = TRUE;
+	END IF;
+
+	-- profile bio
+	NEW.profile_bio = COALESCE(NEW.profile_bio, OLD.profile_bio);
+	NEW.profile_bio := _api.trim(NEW.profile_bio);
+	PERFORM _api.validate_text(
+		_text => NEW.profile_bio,
+		_column => 'profile_bio',
+		_max => 2048
+	);
+
+	IF NEW.profile_bio IS DISTINCT FROM OLD.profile_bio THEN
+		_changed = TRUE;
+	END IF;
+
+	IF _changed THEN
+		UPDATE admin.user SET
+			username = NEW.username,
+			password = NEW.password,
+			first_name = NEW.first_name,
+			last_name = NEW.last_name,
+			middle_name = NEW.middle_name,
+			email = NEW.email,
+			gender = NEW.gender,
+			birth_date = NEW.birth_date,
+			profile_bio = NEW.profile_bio
+			WHERE id = OLD.id;
+	END IF;
+
 	RETURN NEW;
 END
 $BODY$;
 
 GRANT EXECUTE ON FUNCTION _api.user_update()
 	TO rest_user;
-GRANT DELETE ON TABLE api.user
+GRANT UPDATE ON TABLE api.user
+	TO rest_user;
+GRANT UPDATE ON TABLE admin.user
 	TO rest_user;
 
 CREATE TRIGGER api_user_update_trgr

db/rest/util/_api_trim.sql

@@ -0,0 +1,25 @@
+CREATE FUNCTION _api.trim(
+	_text TEXT
+)
+RETURNS TEXT
+LANGUAGE plpgsql VOLATILE
+AS $BODY$
+DECLARE
+	_new TEXT;
+BEGIN
+
+	IF _text IS NULL THEN
+		RETURN NULL;
+	END IF;
+
+	_new = _text;
+	_new = TRIM(_new);
+	_new = REGEXP_REPLACE(_new, '^(?: |\r|\n)*', '');
+	_new = REGEXP_REPLACE(_new, '(?: |\r|\n)*$', '');
+
+	RETURN _new;
+END
+$BODY$;
+
+GRANT EXECUTE ON FUNCTION _api.trim(TEXT)
+	TO rest_anon, rest_user;

db/rest/util/_api_validate_text.sql

@@ -33,6 +33,7 @@ BEGIN
 			_detail => _column,
 			_hint => _min || ''
 		);
+		RETURN FALSE;
 	END IF;
 
 	IF _max IS NOT NULL AND _length > _max THEN
@@ -41,6 +42,7 @@ BEGIN
 			_detail => _column,
 			_hint => _max || ''
 		);
+		RETURN FALSE;
 	END IF;
 
 	RETURN TRUE;

web/_controller/_util/post.php

@@ -0,0 +1,129 @@
+<?php /* Copyright (c) 2024 Freya Murphy */
+class Post_controller extends Controller {
+
+	// the request model
+	private $request_model;
+
+	// the caceh model
+	private $cache_model;
+
+	// page size
+	private $page_size;
+
+	function __construct($load) {
+		parent::__construct($load);
+		$this->request_model = $this->load->model('request');
+		$this->cache_model = $this->load->model('cache');
+		$this->page_size = 10;
+	}
+
+	public function index(): void {
+		$this->view('template/posts');
+	}
+
+    /**
+     * @return array<string,mixed>
+     */
+    public function posts(): array {
+		$page = $this->request_model->get_int('page', 0);
+		$max = $this->request_model->get_int('max');
+		$offset = $page * $this->page_size;
+
+		$user = $this->main->user();
+
+		$query = $this->db;
+
+		if ($user) {
+			$query = $query->select('p.*, l.post_id IS NOT NULL as liked');
+		} else {
+			$query = $query->select('p.*, FALSE as liked');
+		}
+
+		$query = $query->from('api.post p');
+
+		if ($user) {
+			$query = $query->join('admin.like l', 'p.id = l.post_id AND l.user_id')
+				->eq($user['id']);
+		}
+
+		if ($max) {
+			$query = $query
+				->where('id')->le($max);
+		}
+
+		$posts = $query
+			->limit($this->page_size)
+			->offset($offset)
+			->rows();
+
+		$users = $this->cache_model->get_users($posts);
+		$max = 0;
+
+		foreach ($posts as $post) {
+			$max = max($max, $post['id']);
+			$data = array();
+			$data['page_size'] = $this->page_size;
+			$data['user'] = $users[$post['user_id']];
+			$data['post'] = $post;
+			$this->view('template/post', $data);
+		}
+
+		$pc = $this->db
+			->select('COUNT(p.id) as pc')
+			->from('api.post p')
+			->row()['pc'];
+
+
+		return array(
+			'loaded' => count($posts),
+			'total' => $pc,
+			'page_size' => $this->page_size,
+			'max' => $max,
+		);
+	}
+
+    /**
+     * @return array<string,mixed>
+     */
+    public function comments(): array {
+		$page = $this->request_model->get_int('page', 0);
+		$max = $this->request_model->get_int('max');
+		$id = $this->request_model->get_int('id', 0);
+		$offset = $page * $this->page_size;
+
+		$query = $this->db
+			->select('*')
+			->from('api.comment')
+			->where('post_id')
+			->eq($id);
+
+		if ($max) {
+			$query = $query
+				->and()
+				->where('id')
+				->le($max);
+		}
+
+		$comments = $query
+			->limit($this->page_size)
+			->offset($offset)
+			->rows();
+
+		$users = $this->cache_model->get_users($comments);
+		$max = 0;
+
+		foreach ($comments as $comment) {
+			$max = max($max, $comment['id']);
+			$data = array();
+			$data['user'] = $users[$comment['user_id']];
+			$data['comment'] = $comment;
+			$this->view('template/comment', $data);
+		}
+
+		return array(
+			'loaded' => count($comments),
+			'page_size' => $this->page_size,
+			'max' => $max,
+		);
+	}
+}

web/_controller/apps/home.php

@@ -4,17 +4,13 @@ class Home_controller extends Controller {
 	// the home model
 	private $home_model;
 
-	// the request model
-	private $request_model;
-
-	// the caceh model
-	private $cache_model;
+	// the post controller
+	protected $post_controller;
 
 	function __construct($load) {
 		parent::__construct($load);
 		$this->home_model = $this->load->model('apps/home');
-		$this->request_model = $this->load->model('request');
-		$this->cache_model = $this->load->model('cache');
+		$this->post_controller = $this->load->controller('_util/post');
 	}
 
 	public function index(): void {
@@ -24,66 +20,6 @@ class Home_controller extends Controller {
 		$this->view('apps/home/main', $data);
 	}
 
-	public function posts(): void {
-		$page = $this->request_model->get_int('page', 0);
-		$page_size = 20;
-		$offset = $page * $page_size;
-
-		$user = $this->main->user();
-
-		$query = $this->db;
-
-		if ($user) {
-			$query = $query->select('p.*, l.post_id IS NOT NULL as liked');
-		} else {
-			$query = $query->select('p.*, FALSE as liked');
-		}
-
-		$query = $query->from('api.post p');
-
-		if ($user) {
-			$query = $query->join('admin.like l', 'p.id = l.post_id')
-				->where('l.user_id')->eq($user['id'])
-				->or()->where('l.user_id IS NULL');
-		}
-
-		$posts = $query->limit($page_size)
-			->offset($offset)
-			->rows();
-
-		$users = $this->cache_model->get_users($posts);
-
-		foreach ($posts as $post) {
-			$data = array();
-			$data['user'] = $users[$post['user_id']];
-			$data['post'] = $post;
-			$this->view('template/post', $data);
-		}
-	}
-
-	public function comments(): void {
-		$page = $this->request_model->get_int('page', 0);
-		$id = $this->request_model->get_int('id');
-		$page_size = 20;
-		$offset = $page * $page_size;
-
-		$comments = $this->db
-			->select('*')
-			->from('admin.comment')
-			->limit($page_size)
-			->offset($offset)
-			->rows();
-
-		$users = $this->cache_model->get_users($comments);
-
-		foreach ($comments as $comment) {
-			$data = array();
-			$data['user'] = $users[$comment['user_id']];
-			$data['comment'] = $comment;
-			$this->view('template/comment', $data);
-		}
-	}
-
 }
 
 ?>

web/_model/format.php

@@ -1,5 +1,5 @@
 <?php /* Copyright (c) 2024 Freya Murphy */
-class Format_model extends Modal {
+class Format_model extends Model {
 
 	function __construct($load) {
 		parent::__construct($load);

web/_views/apps/home/main.php

@@ -23,8 +23,5 @@
 		</script>
 	</div>
 <?php endif; ?>
-	<div id="post-container">
-		<?=$this->posts()?>
-	</div>
-	<?=ilang('action_load_posts', id: 'action-load-posts', class: 'btn btn-line')?>
+	<?php $this->post_controller->index(); ?>
 </div>

web/_views/template/comment.php

@@ -1,11 +1,14 @@
 <?php /* Copyright (c) 2024 Freya Murphy */ ?>
 <?php /* vi: syntax=php */ ?>
+<?php
+	$format_model = $this->load->model('format');
+?>
 <div class="comment row mt">
 	<?php $this->view('template/pfp', array('user' => $user))?>
 	<div class="ml col sub-card">
 		<div class="row">
-			<strong><?=$this->main->display_name($user)?></strong>
-			<span class="dim ml"><?=$this->main->display_date($comment['date'])?></span>
+			<strong><?=$format_model->name($user)?></strong>
+			<span class="dim ml"><?=$format_model->date($comment['date'])?></span>
 		</div>
 		<?=$comment['content']?>
 	</div>

web/_views/template/post.php

@@ -29,25 +29,40 @@
 	<div class="col comments">
 		<?php
 			$_GET['id'] = $post['id'];
-			$this->comments();
-			ilang('action_load_comments',
-				class: 'action-load-comments btn btn-line mt',
-				attrs: array('postId' => $post['id'])
-			);
+			$cdata = $this->comments();
+
+			$loaded = $cdata['loaded'];
+			$max = $cdata['max'];
+			$page_size = $cdata['page_size'];
+			$total = $post['comment_count'];
+
+			if ($loaded >= $page_size && $page_size < $total) {
+				ilang('action_load_comments',
+					class: 'action-load-comments btn btn-line mt',
+					attrs: array(
+						'postId' => $post['id'],
+						'loaded' => $loaded,
+						'pageSize' => $page_size,
+						'commentCount' => $total,
+						'commentMax' => $max,
+					)
+				);
+			}
+
 		?>
 	</div>
 <?php if ($self): ?>
 	<div class="row grow mt">
 		<?php $this->view('template/pfp', array('user' => $user))?>
-		<form class="ml">
+		<form class="ml action-new-comment-form">
 			<input
 				type="hidden"
 				name="id"
 				value="<?=$post['id']?>"
 			>
 			<input
-				id="new-comment-<?=$post['id']?>"
-				class="input"
+				class="action-new-comment input"
+				postId="<?=$post['id']?>"
 				autocomplete="off"
 				type="text"
 				name="text"

web/_views/template/posts.php

@@ -0,0 +1,23 @@
+<div id="post-container">
+<?php
+	$pdata = $this->posts();
+
+	$loaded = $pdata['loaded'];
+	$page_size = $pdata['page_size'];
+	$total = $pdata['total'];
+	$max = $pdata['max'];
+
+	if ($loaded >= $page_size && $page_size < $total) {
+		ilang('action_load_posts',
+			id: 'action-load-posts',
+			class: 'btn btn-line mb',
+			attrs: array(
+				'loaded' => $loaded,
+				'pageSize' => $page_size,
+				'postCount' => $total,
+				'postMax' => $max,
+			)
+		);
+	}
+?>
+</div>

web/core/database.php

@@ -69,6 +69,18 @@ class DatabaseQuery {
 		return $this;
 	}
 
+	public function lt($item) {
+		$this->query .= "< ?\n";
+		array_push($this->param, $item);
+		return $this;
+	}
+
+	public function le($item) {
+		$this->query .= "<= ?\n";
+		array_push($this->param, $item);
+		return $this;
+	}
+
 	public function where_in($column, $array) {
 		if (!$this->where) {
 			$this->where = TRUE;

web/public/css/post.css

@@ -10,3 +10,7 @@
 .action-load-comments {
 	margin-left: 4rem;
 }
+
+#action-load-posts {
+	justify-content: center;
+}

web/public/js/shared/post.js

@@ -5,14 +5,28 @@ observe('#main-content', '.action-load-comments', function(me) {
 			page = '1';
 		}
 		let newPage = Number(page) + 1;
-		let id = me.attr('postId');
 		me.attr('page', newPage + '');
-		let url = '/home/comments?page=' + page + '&id=' + id;
+
+		let postId = me.attr('postId');
+		let loaded = Number(me.attr('loaded'));
+		let pageSize = Number(me.attr('pageSize'));
+		let commmentCount = Number(me.attr('commentCount'));
+		let commentMax = Number(me.attr('commentMax'));
+
+		let url = '/_util/post/comments?page=' + page + '&id=' + postId + '&max' + commentMax;
 			$.get(url, function (data) {
 			if (data === '') {
 				me.remove();
+				return;
+			}
+
+			$(data).insertBefore(me);
+
+			loaded += pageSize;
+			if (loaded >= commmentCount) {
+				me.remove();
 			} else {
-				$(me).prepend(data);
+				me.attr('loaded', loaded + '');
 			}
 		});
 	});
@@ -26,13 +40,45 @@ observe('#main-content', '#action-load-posts', function(me) {
 		}
 		let newPage = Number(page) + 1;
 		me.attr('page', newPage + '');
-		let url = '/home/posts?page=' + page;
-			$.get(url, function (data) {
+
+		let loaded = Number(me.attr('loaded'));
+		let pageSize = Number(me.attr('pageSize'));
+		let postCount = Number(me.attr('postCount'));
+		let postMax = Number(me.attr('postMax'));
+
+		let url = '/_util/post/posts?page=' + page + '&max=' + postMax;
+		$.get(url, function (data) {
 			if (data === '') {
 				me.remove();
+				return;
+			}
+
+			$(data).insertBefore(me);
+
+			loaded += pageSize;
+			if (loaded >= postCount) {
+				me.remove();
 			} else {
-				$('#post-container').append(data);
+				me.attr('loaded', loaded + '');
 			}
 		});
 	});
 });
+
+observe('#main-content', '.action-new-comment-form', function(me) {
+	me.on('submit', function(e) {
+		e.preventDefault();
+		let input = me.find('.action-new-comment');
+		let content = input.val();
+		let post_id = input.attr('postId');
+		$.ajax({
+			url: '/api/comment',
+			method: 'POST',
+			data: JSON.stringify({ post_id, content }),
+			success: function(_data) {
+				window.location.reload();
+			},
+			error: errorToast
+		});
+	});
+});