279 lines
8.2 KiB
JavaScript
279 lines
8.2 KiB
JavaScript
var moment = require("moment");
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var _ = require("lodash");
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var fs = require('fs');
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var mkdirp = require('mkdirp');
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var jade = require('jade');
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var markdown = require( "markdown" ).markdown;
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var path = require('path');
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var schemas = require('./schemas.js');
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var gm = require('gm');
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var config = require("./config.js").config;
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var Photo = function(data) {
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this.data = this.sanitize(data);
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}
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////////////////////////////////////////////////////////////////////////////////////////
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// Prototype Setup
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////////////////////////////////////////////////////////////////////////////////////////
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Photo.prototype.data = {}
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Photo.prototype.get = function (name) {
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return this.data[name];
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}
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Photo.prototype.set = function (name, value) {
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this.data[name] = value;
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}
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Photo.prototype.sanitize = function (data) {
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data = data || {};
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schema = schemas.photo;
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return _.pick(_.defaults(data, schema), _.keys(schema));
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}
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Photo.prototype.save = function (date, callback) {
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var self = this;
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if (date) {
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this.set('updatedDate', date);
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} else {
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this.set("updatedDate", new Date());
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}
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this.data = this.sanitize(this.data);
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db.collection("photos").update({uuid: this.get("uuid")}, this.data, {upsert: true}, function(err) {
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callback(err);
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});
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}
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////////////////////////////////////////////////////////////////////////////////////////
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// Prototype Functions
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////////////////////////////////////////////////////////////////////////////////////////
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// Parse a string of tags
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// Returns a list of tags
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Post.prototype.tagPhoto = function(str) {
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this.set("tags", []);
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// we don't need no stinking commas
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var str = str.replace(/,/g,'');
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// remove accents, swap ñ for n, etc
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var from = "àáäâèéëêìíïîòóöôùúüûñç·/,:;&%";
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var to = "aaaaeeeeiiiioooouuuunc-------";
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for (var i=0, l=from.length ; i<l ; i++) {
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str = str.replace(new RegExp(from.charAt(i), 'g'), to.charAt(i));
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}
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// Make into a sorted, unique array
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var l = str.split(" ");
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var list = []
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for (i = 0; i < l.length; i ++) {
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if (l[i]) {
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list[i] = l[i].toLowerCase().trim()
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}
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}
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list = list.sort();
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var unique = list.filter(function(elem, index, self) {
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return index == self.indexOf(elem);
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})
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// Push these into the post.
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for (var i = 0, size = unique.length; i < size; i++) {
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if (unique[i]) {
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this.data.tags.push({name: list[i]});
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}
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}
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}
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// Function to get a YYYY-MM-DD format of the current photoDate
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// Arguments: None
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// Returns: Date as String
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Photo.prototype.getShortDate = function () {
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return moment(this.get("photoDate")).format("YYYY-MM-DD");
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}
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// Function to return rendered markdown of a photo
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// Arguments: None
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// Returns: Content as String
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Photo.prototype.renderMarkdown = function () {
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return markdown.toHTML(this.get("markdown"));
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}
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// Function to get the relative url of a photo, this sets the permalink structure
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// Arguments: None
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// Returns: URL as String
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Photo.prototype.getURL = function () {
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var url = "/photo/";
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url += moment(this.get("photoDate")).format("YYYY/MM/");
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url += this.get("slug") + '/';
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return url;
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}
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// Function to return the path of the photo index file
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// Arguments: None
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// Returns: Path as a string
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Photo.prototype.getIndexPath = function () {
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var file = path.join(this.getDirectory(),'index.html');
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return file;
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}
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// Function to return the photo build directory
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// Arguments: None
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// Returns: Directory path as String
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Photo.prototype.getDirectory = function () {
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var dir = path.join(config.buildDir,this.getURL());
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return dir;
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}
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// Build a slug from a title string
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// Arguments: None
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// Returns: Photo Slug as String
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Photo.prototype.makeSlug = function () {
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str = this.get("title").replace(/^\s+|\s+$/g, ''); // trim
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str = str.toLowerCase();
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str = str.trim();
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// remove accents, swap ñ for n, etc
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var from = "àáäâèéëêìíïîòóöôùúüûñç·/_,:;&";
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var to = "aaaaeeeeiiiioooouuuunc-------";
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for (var i=0, l=from.length ; i<l ; i++) {
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str = str.replace(new RegExp(from.charAt(i), 'g'), to.charAt(i));
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}
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str = str.replace(/[^a-z0-9 -]/g, '') // remove invalid chars
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.replace(/\s+/g, '-') // collapse whitespace and replace by -
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.replace(/-+/g, '-'); // collapse dashes
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return str;
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};
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// Function to generate static renderings of a particular post.
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// Arguments: Callback function
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// Returns: err
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Photo.prototype.build = function (callback) {
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var options = {
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pretty: true,
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photo: this
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};
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console.log('Rendering photo: '+this.get("title"));
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var jadeOut = jade.renderFile('views/render-photo.jade', options);
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console.log('Creating directory: '+ this.getDirectory());
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self = this;
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mkdirp(self.getDirectory(), function (err) {
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if (err) console.log(err);
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for (var size in config.imageSizes) {
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console.log('Generating '+size+' for '+self.get("slug"));
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(function(size){
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gm(photo.path)
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.autoOrient()
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.resize(config.imageSizes[size], config.imageSizes[size])
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.write(path.join(self.getDirectory(),size+'.'+self.get("extension")),
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function(err) {
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if (err) {
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console.log(self.get("slug")+' resize failed.');
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}
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else {
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console.log(self.get("slug")+' '+size+' generated.');
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}
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}
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);
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})(size);
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}
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fs.writeFile(self.getIndexPath(), jadeOut, 'utf-8', function (err) {
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self.set('lastBuildDate', new Date());
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self.save(self.get('lastBuildDate'), function (err) {
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callback(err);
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});
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});
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});
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}
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////////////////////////////////////////////////////////////////////////////////////////
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// Independent Functions
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////////////////////////////////////////////////////////////////////////////////////////
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// Function to find the most recent photo generation.
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// Returns a date object
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Photo.getLastBuildDate = function (callback) {
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db.collection("photos").findOne({}, {lastBuildDate: 1}, {sort: {lastBuildDate: -1}},
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function(err, doc) {
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callback(err, doc.lastBuildDate);
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}
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)
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};
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// Function to find the most recent photo upload date.
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// Returns a date object
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Photo.getLastUploadDate = function (callback) {
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db.collection("photos").findOne({}, {lastUploadDate: 1}, {sort: {lastUploadDate: -1}},
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function (err, doc) {
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callback(err, doc.lastUploadDate);
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}
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)
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};
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// Get a specific photo by it's UUID
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// Inputs: UUID as String
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// Returns: Photo object
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Photo.getByUUID = function (uuid, callback) {
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db.collection("posts").findOne({uuid: uuid}, function(err, doc) {
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callback(err, new Photo(doc));
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});
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}
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// Function to get a count of current photos
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// Inputs: Callback function
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// Returns: Count of photos as integer
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Photo.countPhotos = function (callback) {
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db.collection("photos").find({}).count(function (err, count) {
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if (err) console.log(err);
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callback(err, count);
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});
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}
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// Function to get a list of posts of a certain count and starting at an offset
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// Count and start are optional, when start is specified count must be specified.
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// Returns a list of post objects
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Photos.getPhotos = function (count, start, callback) {
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if (typeof callback === undefined) {
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if (typeof start === undefined) {
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callback = count;
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count = undefined;
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start = undefined;
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}
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else {
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callback = start;
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start = undefined;
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}
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}
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var options = {}
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if (start) options.skip=start;
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if (count) options.limit=count;
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options.sort = [['photoDate', 'desc'],['title', 'asc']];
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db.collection("photos").find({},options).toArray( function(err, docs) {
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if (err) console.log(err);
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photos = [];
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for (i=0; i<docs.length; i++) {
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photos.push(new Photo(docs[i]));
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}
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callback(null, photos);
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});
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}
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// Export the Post object for external use.
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module.exports = Photo;
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