asset/api.js
function main (bauhausConfig) {
	'use strict';
	var assetController = baucis.rest({
		singular: 'Asset',
		select:'name metadata transforms parentId'
	});

	var app = express();

    var basePath = '/Assets';
	/*
	 *	Route to updload data to an asset
	 */
	app.post(basePath + '/:id', function (req, res) {
        req.accepts('*');

		var fileData,		//Holds various information about the uploaded file
			assetBuffer,	//The image data as buffer
			routeParams = req.route.params,	//The parameters of the route (:id)
			body        = req.body || {},
			id          = routeParams.id;

		Asset.findOne ({_id : id},'_id name',function (err,assetDocument) {   //Find the asset by its id in the monngodb
			if (err) { return next(err); }
			if (!assetDocument) { return next(); }

			assetDocument.metadata = assetDocument.metadata || {};   //Assign a default metadata  object

			if (body.name) {
				assetDocument.name = body.name;
			}

			if (body.data) {  //If the request contains an text/plain field named data instead of a file, its data is in the body field
				assetDocument.data = body.data;
				assetDocument.metadata['content-type'] = 'text/plain';
			}

			if (req.files && req.files.data) {	//If the request contains files, the data field, containing the information, is in the files member
				fileData           = req.files.data;
				assetBuffer        = fs.readFileSync (fileData.path); //the path member contains the temporary path to the image.
				assetDocument.data = assetBuffer;  //assign the image data as a buffer to the assets database entry

                if (!assetDocument.name && req.files.data.originalFilename) {
                    assetDocument.name = req.files.data.originalFilename; // set filename if empty
                }

				for ( var header in fileData.headers ) {  //The header field contains information such as the content type. Copy them to the metadata field.
					assetDocument.metadata [header] = fileData.headers [header];
				}

				assetDocument.metadata.size = fileData.size; //The size in bytes

                var isImage = /^image\//;
                if (assetDocument.metadata['content-type'].match(isImage) !== null) { // calculate size for images
    				gm(assetBuffer).size(function (err, size) { //Computes the size of the uploaded image
    					var	gcd,
    						height = size.height,
    						width  = size.width;

    					if (err)  { return next(err); }

    					gcd = utilities.gcd (width,height);

    					assetDocument.metadata.width       = width;
    					assetDocument.metadata.height      = height;
    					assetDocument.metadata.aspectRatio = {
    															value: width/height,
    															text:	(width/gcd) + ':' + (height/gcd)
    														 };

    					removeCachedSubAssets (id); //If we update the data all cached versions need to be removed.
    					saveAsset (assetDocument, res);
    				});
                }

			} else {
				saveAsset (assetDocument, res);
			}
		});
	});

	app.delete (basePath + '/:id', function (req){
		var routeParams = req.route.params,
			id = routeParams.id;
		removeCachedSubAssets (id, req);	//If the request gets passed, its next function gets called
	});

	/*
	 *  Removes all cached subassets which have the given id as its parentID
	 */
	function removeCachedSubAssets (id,req) {
		Asset.remove ({parentId:id},function (err) {
			if (err) { return next(err); }
			if (req) { req.next (); }
		});
	}

	/*
	 *  Mongoose save function, used by default
	 */
	function saveAsset (asset,res) {
		asset.save (function (err) {
			if (err) { return next(err); }
            var response = {
                _id: asset.id,
                metadata: asset.metadata,
                name: asset.name
            };
			return res.json(200, response);	//and send the response
		});
	}

	app.use(baucis());
	return app;
}
function main (bauhausConfig) {
	'use strict';
	var assetController = baucis.rest({
		singular: 'Asset',
		select:'name metadata transforms parentId'
	});

	var app = express();

    var basePath = '/Assets';
	/*
	 *	Route to updload data to an asset
	 */
	app.post(basePath + '/:id', function (req, res) {
        req.accepts('*');

		var fileData,		//Holds various information about the uploaded file
			assetBuffer,	//The image data as buffer
			routeParams = req.route.params,	//The parameters of the route (:id)
			body        = req.body || {},
			id          = routeParams.id;

		Asset.findOne ({_id : id},'_id name',function (err,assetDocument) {   //Find the asset by its id in the monngodb
			if (err) { return next(err); }
			if (!assetDocument) { return next(); }

			assetDocument.metadata = assetDocument.metadata || {};   //Assign a default metadata  object

			if (body.name) {
				assetDocument.name = body.name;
			}

			if (body.data) {  //If the request contains an text/plain field named data instead of a file, its data is in the body field
				assetDocument.data = body.data;
				assetDocument.metadata['content-type'] = 'text/plain';
			}

			if (req.files && req.files.data) {	//If the request contains files, the data field, containing the information, is in the files member
				fileData           = req.files.data;
				assetBuffer        = fs.readFileSync (fileData.path); //the path member contains the temporary path to the image.
				assetDocument.data = assetBuffer;  //assign the image data as a buffer to the assets database entry

                if (!assetDocument.name && req.files.data.originalFilename) {
                    assetDocument.name = req.files.data.originalFilename; // set filename if empty
                }

				for ( var header in fileData.headers ) {  //The header field contains information such as the content type. Copy them to the metadata field.
					assetDocument.metadata [header] = fileData.headers [header];
				}

				assetDocument.metadata.size = fileData.size; //The size in bytes

                var isImage = /^image\//;
                if (assetDocument.metadata['content-type'].match(isImage) !== null) { // calculate size for images
    				gm(assetBuffer).size(function (err, size) { //Computes the size of the uploaded image
    					var	gcd,
    						height = size.height,
    						width  = size.width;

    					if (err)  { return next(err); }

    					gcd = utilities.gcd (width,height);

    					assetDocument.metadata.width       = width;
    					assetDocument.metadata.height      = height;
    					assetDocument.metadata.aspectRatio = {
    															value: width/height,
    															text:	(width/gcd) + ':' + (height/gcd)
    														 };

    					removeCachedSubAssets (id); //If we update the data all cached versions need to be removed.
    					saveAsset (assetDocument, res);
    				});
                }

			} else {
				saveAsset (assetDocument, res);
			}
		});
	});

	app.delete (basePath + '/:id', function (req){
		var routeParams = req.route.params,
			id = routeParams.id;
		removeCachedSubAssets (id, req);	//If the request gets passed, its next function gets called
	});

	/*
	 *  Removes all cached subassets which have the given id as its parentID
	 */
	function removeCachedSubAssets (id,req) {
		Asset.remove ({parentId:id},function (err) {
			if (err) { return next(err); }
			if (req) { req.next (); }
		});
	}

	/*
	 *  Mongoose save function, used by default
	 */
	function saveAsset (asset,res) {
		asset.save (function (err) {
			if (err) { return next(err); }
            var response = {
                _id: asset.id,
                metadata: asset.metadata,
                name: asset.name
            };
			return res.json(200, response);	//and send the response
		});
	}

	app.use(baucis());
	return app;
}
function main ( bauhausConfig ) { 'use strict' ; var assetController = baucis . rest ( { singular : 'Asset' , select : 'name metadata transforms parentId' } ) ; var app = express ( ) ; var basePath = '/Assets' ; /*
	 *	Route to updload data to an asset
	 */ app . post ( basePath + '/:id' , function ( req , res ) { req . accepts ( '*' ) ; var fileData , //Holds various information about the uploaded file assetBuffer , //The image data as buffer routeParams = req . route . params , //The parameters of the route (:id) body = req . body || { } , id = routeParams . id ; Asset . findOne ( { _id : id } , '_id name' , function ( err , assetDocument ) { //Find the asset by its id in the monngodb if ( err ) { return next ( err ) ; } if ( ! assetDocument ) { return next ( ) ; } assetDocument . metadata = assetDocument . metadata || { } ; //Assign a default metadata  object if ( body . name ) { assetDocument . name = body . name ; } if ( body . data ) { //If the request contains an text/plain field named data instead of a file, its data is in the body field assetDocument . data = body . data ; assetDocument . metadata [ 'content-type' ] = 'text/plain' ; } if ( req . files && req . files . data ) { //If the request contains files, the data field, containing the information, is in the files member fileData = req . files . data ; assetBuffer = fs . readFileSync ( fileData . path ) ; //the path member contains the temporary path to the image. assetDocument . data = assetBuffer ; //assign the image data as a buffer to the assets database entry if ( ! assetDocument . name && req . files . data . originalFilename ) { assetDocument . name = req . files . data . originalFilename ; // set filename if empty } for ( var header in fileData . headers ) { //The header field contains information such as the content type. Copy them to the metadata field. assetDocument . metadata [ header ] = fileData . headers [ header ] ; } assetDocument . metadata . size = fileData . size ; //The size in bytes var isImage = / ^image\/ / ; if ( assetDocument . metadata [ 'content-type' ] . match ( isImage ) !== null ) { // calculate size for images gm ( assetBuffer ) . size ( function ( err , size ) { //Computes the size of the uploaded image var gcd , height = size . height , width = size . width ; if ( err ) { return next ( err ) ; } gcd = utilities . gcd ( width , height ) ; assetDocument . metadata . width = width ; assetDocument . metadata . height = height ; assetDocument . metadata . aspectRatio = { value : width / height , text : ( width / gcd ) + ':' + ( height / gcd ) } ; removeCachedSubAssets ( id ) ; //If we update the data all cached versions need to be removed. saveAsset ( assetDocument , res ) ; } ) ; } } else { saveAsset ( assetDocument , res ) ; } } ) ; } ) ; app . delete ( basePath + '/:id' , function ( req ) { var routeParams = req . route . params , id = routeParams . id ; removeCachedSubAssets ( id , req ) ; //If the request gets passed, its next function gets called } ) ; /*
	 *  Removes all cached subassets which have the given id as its parentID
	 */ function removeCachedSubAssets ( id , req ) { Asset . remove ( { parentId : id } , function ( err ) { if ( err ) { return next ( err ) ; } if ( req ) { req . next ( ) ; } } ) ; } /*
	 *  Mongoose save function, used by default
	 */ function saveAsset ( asset , res ) { asset . save ( function ( err ) { if ( err ) { return next ( err ) ; } var response = { _id : asset . id , metadata : asset . metadata , name : asset . name } ; return res . json ( 200 , response ) ; //and send the response } ) ; } app . use ( baucis ( ) ) ; return app ; }
mongoose, asset
mongoose asset