101 lines
3.0 KiB
JavaScript
101 lines
3.0 KiB
JavaScript
var express = require('express');
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var router = express.Router();
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var paginate = require('../util/paginate');
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var HashMap = require('hashmap').HashMap;
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/* All series */
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router.get('/', function(req, res) {
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var series = new HashMap();
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var qparams = new Array();
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var query = 'SELECT series.id as id,name,count(*) as count FROM series,books_series_link WHERE books_series_link.series = series.id';
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req.paginate = new paginate(req);
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query = req.paginate.appendInitialQuery(query,'sort',qparams,false);
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query+=' GROUP BY books_series_link.series ORDER BY sort LIMIT ? OFFSET ?';
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qparams.push(req.paginate.perpage + 1);
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qparams.push(req.paginate.offset);
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req.db.each(query, qparams, function (err, row) {
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if (series.count() < req.paginate.perpage)
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series.set(''+row.id,row);
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else
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req.paginate.hasNext = true;
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}, function(err) {
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if (err) console.log(err);
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res.links(req.paginate.links());
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/* query series authors */
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var qAuthors = 'SELECT DISTINCT books_series_link.series as serie, authors.id as id,name FROM authors,books_authors_link,books_series_link WHERE books_series_link.book = books_authors_link.book AND books_authors_link.author = authors.id AND books_series_link.series IN (';
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for (var i=0;i<series.count()-1;i++) qAuthors+='?,';
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qAuthors+='?)';
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req.db.each(qAuthors, series.keys(), function(err, author) {
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var serie = series.get(''+author.serie);
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if (!serie.authors) serie.authors = new Array();
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serie.authors.push(author);
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}, function(err) {
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if (err) console.log(err);
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res.json(series.values());
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});
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});
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});
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/* Single serie */
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router.get('/:id', function(req, res) {
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var nbq = 3;
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var serie;
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var books = new Array();
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var authors = new Array();
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var respond = function() {
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if (nbq==0) {
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serie.books = books;
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serie.authors = authors;
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res.format({
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html: function(){
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serie.title = serie.name;
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res.render('serie', serie);
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},
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json: function(){
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res.json(serie);
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}
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});
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}
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};
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req.db.get('SELECT * FROM series WHERE id = ?', req.params.id, function(err, row) {
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if (err) console.log(err);
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serie = row;
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nbq--;
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respond();
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});
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var booksIds = new Array();
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req.db.each('SELECT books.id AS id,title,series_index'+
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' FROM books'+
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' LEFT OUTER JOIN books_series_link ON books_series_link.book = books.id'+
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' WHERE books_series_link.series = ?'+
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' ORDER BY series_index', req.params.id,
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function(err, book) {
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books.push(book);
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booksIds.push(book.id);
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},
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function(err) {
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if (err) console.log(err);
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nbq--;
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var autq = 'SELECT DISTINCT authors.name AS name, authors.id AS id'+
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' FROM authors'+
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' LEFT OUTER JOIN books_authors_link ON books_authors_link.author = authors.id'+
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' WHERE books_authors_link.book IN (';
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for (var i=0;i<booksIds.length-1;i++) autq+='?,';
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autq+='?)';
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req.db.each(autq, booksIds,
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function(err, author) {
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authors.push(author);
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},
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function(err) {
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if (err) console.log(err);
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nbq--;
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respond();
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}
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);
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}
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);
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});
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module.exports = router;
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