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collection.js
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collection.js
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var os = require('os');
var bson = require('../bson');
var routes = function(config) {
var exp = {};
//view all entries in a collection
exp.viewCollection = function(req, res, next) {
//var limit = parseInt(req.params.limit, 10) || config.options.documentsPerPage;
var limit = config.options.documentsPerPage;
var skip = parseInt(req.query.skip, 10) || 0;
var query_options = {
limit: limit,
skip: skip
};
// some query filter
var query = {};
var fields = {};
var key = req.query.key || '';
var value = req.query.value || '';
var type = req.query.type || '';
var jsonQuery = req.query.query || '';
var jsonFields = req.query.fields || '';
if (key && value) {
// If type == J, convert value as json document
if (type.toUpperCase() == 'J') {
value = JSON.parse(req.query.value);
}
// If type == N, convert value to Number
if (type.toUpperCase() == 'N') {
value = Number(req.query.value);
}
// If type == O, convert value to ObjectID
// TODO: Add ObjectID validation to prevent error messages.
if (type.toUpperCase() == 'O') {
value = bson.toObjectId(req.query.value);
if (!value) {
req.session.error = "ObjectIDs must be 24 characters long!";
return res.redirect('back');
}
}
query[key] = value;
} else if (jsonQuery) {
query = bson.toSafeBSON(jsonQuery);
if (query == null) {
req.session.error = "Query entered is not valid";
return res.redirect('back');
}
if (jsonFields) {
fields = bson.toSafeBSON(jsonFields) || {};
}
} else {
var query = {};
}
req.collection.find(query, fields, query_options).toArray(function(err, items) {
req.collection.stats(function(err, stats) {
//Pagination
//Have to do this here, swig template doesn't allow any calculations :(
var prev, back2, here, next2, next, last;
prev = {
page: Math.round((skip - limit) / limit) + 1,
skip: skip - limit
};
prev2 = {
page: Math.round((skip - limit * 2) / limit) + 1,
skip: skip - limit * 2
};
next2 = {
page: Math.round((skip + limit * 2) / limit) + 1,
skip: skip + limit * 2
};
next = {
page: Math.round((skip + limit) / limit) + 1,
skip: skip + limit
};
here = Math.round(skip / limit) + 1;
last = (Math.ceil(stats.count / limit) - 1) * limit;
var docs = [];
for(var i in items) {
docs[i] = items[i];
items[i] = bson.toString(items[i]);
}
var ctx = {
title: 'Viewing Collection: ' + req.collectionName,
documents: items, //Docs converted to strings
docs: docs, //Original docs
stats: stats,
editorTheme: config.options.editorTheme,
limit: limit,
skip: skip,
prev: prev,
prev2: prev2,
next2: next2,
next: next,
here: here,
last: last,
key: key,
value: value,
type: type,
query: jsonQuery,
fields: jsonFields
};
res.render('collection', ctx);
});
});
};
exp.exportCollection = function(req, res, next) {
req.collection.find().toArray(function(err, items) {
res.setHeader('Content-disposition', 'attachment; filename=' + req.collectionName + '.json');
res.setHeader('Content-type', 'application/json');
var aItems = [];
for(var i in items) {
var docStr = bson.toJsonString(items[i]);
aItems.push(docStr);
}
res.write(aItems.join(os.EOL));
res.end();
});
};
exp.addCollection = function(req, res, next) {
var name = req.body.collection;
if (name === undefined || name.length == 0) {
req.session.error = "You forgot to enter a collection name!";
return res.redirect('back');
}
//Collection names must begin with a letter or underscore, and can contain only letters, underscores, numbers or dots
if (!name.match(/^[a-zA-Z_][a-zA-Z0-9\._]*$/)) {
req.session.error = "That collection name is invalid.";
return res.redirect('back');
}
req.db.createCollection(name, function(err, collection) {
if (err) {
req.session.error = "Something went wrong: " + err;
console.error(err);
return res.redirect('back');
}
req.updateCollections(req.db, req.dbName, function() {
req.session.success = 'Collection created!';
res.redirect(res.locals.baseHref + 'db/' + req.dbName + '/' + name);
});
});
};
exp.deleteCollection = function(req, res, next) {
req.collection.drop(function(err, result) {
if (err) {
req.session.error = "Something went wrong: " + err;
console.error(err);
return res.redirect('back');
}
//If delete was successful, result === true
req.updateCollections(req.db, req.dbName, function(err) {
if (err) {
req.session.error = "Something went wrong: " + err;
console.error(err);
return res.redirect('back');
}
req.session.success = "Collection '" + req.collectionName + "' deleted!";
res.redirect(res.locals.baseHref + 'db/' + req.dbName);
});
});
};
exp.renameCollection = function(req, res, next) {
var name = req.body.collection;
if (name == undefined || name.length == 0) {
req.session.error = "You forgot to enter a collection name!";
return res.redirect('back');
}
//Collection names must begin with a letter or underscore, and can contain only letters, underscores, numbers or dots
if (!name.match(/^[a-zA-Z_][a-zA-Z0-9\._]*$/)) {
req.session.error = "That collection name is invalid.";
return res.redirect('back');
}
req.collection.rename(name, function(err, collection) {
if (err) {
req.session.error = 'Something went wrong: ' + err;
console.error(err);
return res.redirect('back');
}
req.updateCollections(req.db, req.dbName, function(err) {
if (err) {
req.session.error = 'Something went wrong: ' + err;
return res.redirect('back');
}
req.session.success = 'Collection renamed!';
res.redirect(res.locals.baseHref + 'db/' + req.dbName + '/' + name);
});
});
};
return exp;
};
module.exports = routes;