base.js

function timeTo(time){

	var times = new Date();
	var resultString;

	var millisec;
	millisec = (new Date(time)).getTime();
	times.setTime(millisec);
	var month = times.getUTCMonth() + 1;
	if(month < 10){
		month = "0"+ month;
	}
	var date = times.getUTCDate();
	if(date < 10){
		date = "0" + date;
	}

	resultString = 
	times.getYear()+1900 + "-" + month + "-" + date + " "
	+times.getUTCHours() + ":" + times.getMinutes() + ":" + times.getSeconds();
	return resultString;
}

function getArticleAfterArticle(article_id)
{
	var EndArticle = false;

	$.ajax({
		url: "/more",
		dataType: 'JSON',
		data: {
			last_article_id : article_id
		},

		success: function(data){
			if(data.count == 0){
				alert("마지막글입니다");
				$("#morebtn").hide();
				EndArticle =true;
			}else{
				for (var article_idx in data.article_list)
				{
					article = data.article_list[article_idx]
					string = "<div class='well' id='article_"+ article.id 
					+"'><h1><a href='/article/detail/"+ article.id +"'>"
					+ article.title +"</a></h1><h3>"+ article.author +"</h3><h6>"
					+ timeTo(article.date_created)
					+"</h6><p> "
					+ article.content +" </p> </div>";
					$(string).insertAfter($(".well:last"))
				}

			}
		},

		error: function(status){
			string = "<div class='well' id='article_"+ data.id
			+"'><h1>에러가 발생했습니다..</h1></div>";
			$("#results").append(string);
		}
	});
	return true;

}

$(document).ready(function() {
	var number = 0;
	var string;

	$.ajax({
		url: "/rows",
		dataType: 'JSON',
		success: function(data){
			number = data.rows - 4;
		}
	});
	$('#load_more_button').bind('click', function() {
		var article_id = $(".well:last").attr("article_id");
		getArticleAfterArticle(article_id);
		return false;
	});
});

views.py

@app.route('/', methods=['GET'])
def article_list():
    context = {}
    rows = max(Article.query.count() - 5, 5)

    context['article_list'] = Article.query.order_by(
        desc(Article.date_created)).limit(rows)
    return render_template('home.html', context=context, active_tab='timeline')


@app.route('/more')
def article_more():
    last_article_id = request.args.get('last_article_id', 0, type=int)

    article_list = Article.query.filter(Article.id < last_article_id).order_by(
        desc(Article.date_created)).limit(5)
    article_result = []
    for article in article_list:
        article_result.append({'id': article.id,
                               'title': article.title,
                               'content': article.content,
                               'author': article.author,
                               'category': article.category,
                               'date_created': article.date_created,
                               })

    return jsonify(article_list=article_result, count=article_list.count())