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// Licensed under the Apache License, Version 2.0 (the "License"); you may not | ||
// use this file except in compliance with the License. You may obtain a copy | ||
// of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT | ||
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the | ||
// License for the specific language governing permissions and limitations under | ||
// the License. | ||
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// Usage: The passed in function is called when the page is ready. | ||
// CouchApp passes in the app object, which takes care of linking to | ||
// the proper database, and provides access to the CouchApp helpers. | ||
// $.couch.app(function(app) { | ||
// app.db.view(...) | ||
// ... | ||
// }); | ||
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(function($) { | ||
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function Design(db, name) { | ||
this.doc_id = "_design/"+name; | ||
this.view = function(view, opts) { | ||
db.view(name+'/'+view, opts); | ||
}; | ||
this.list = function(list, view, opts) { | ||
db.list(name+'/'+list, view, opts); | ||
}; | ||
} | ||
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$.couch.app = $.couch.app || function(appFun, opts) { | ||
opts = opts || {}; | ||
$(function() { | ||
var urlPrefix = opts.urlPrefix || ""; | ||
$.couch.urlPrefix = urlPrefix; | ||
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var index = urlPrefix.split('/').length; | ||
var fragments = unescape(document.location.href).split('/'); | ||
var dbname = opts.db || fragments[index + 2]; | ||
var dname = opts.design || fragments[index + 4]; | ||
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var db = $.couch.db(dbname); | ||
var design = new Design(db, dname); | ||
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// docForm applies CouchDB behavior to HTML forms. | ||
// todo make this a couch.app plugin | ||
function docForm(formSelector, opts) { | ||
var localFormDoc = {}; | ||
opts = opts || {}; | ||
opts.fields = opts.fields || []; | ||
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// turn the form into deep json | ||
// field names like 'author-email' get turned into json like | ||
// {"author":{"email":"quentin@example.com"}} | ||
function formToDeepJSON(form, fields, doc) { | ||
form = $(form); | ||
fields.forEach(function(field) { | ||
var element = form.find("[name="+field+"]"); | ||
if (element.attr('type') === 'checkbox') { | ||
var val = element.attr('checked'); | ||
} else { | ||
var val = element.val(); | ||
if (!val) return; | ||
} | ||
var parts = field.split('-'); | ||
var frontObj = doc, frontName = parts.shift(); | ||
while (parts.length > 0) { | ||
frontObj[frontName] = frontObj[frontName] || {}; | ||
frontObj = frontObj[frontName]; | ||
frontName = parts.shift(); | ||
} | ||
frontObj[frontName] = val; | ||
}); | ||
} | ||
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// Apply the behavior | ||
$(formSelector).submit(function(e) { | ||
e.preventDefault(); | ||
if (opts.validate && opts.validate() == false) { return false;} | ||
// formToDeepJSON acts on localFormDoc by reference | ||
formToDeepJSON(this, opts.fields, localFormDoc); | ||
if (opts.beforeSave) {opts.beforeSave(localFormDoc);} | ||
db.saveDoc(localFormDoc, { | ||
success : function(resp) { | ||
if (opts.success) {opts.success(resp, localFormDoc);} | ||
} | ||
}); | ||
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return false; | ||
}); | ||
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// populate form from an existing doc | ||
function docToForm(doc) { | ||
var form = $(formSelector); | ||
// fills in forms | ||
opts.fields.forEach(function(field) { | ||
var parts = field.split('-'); | ||
var run = true, frontObj = doc, frontName = parts.shift(); | ||
while (frontObj && parts.length > 0) { | ||
frontObj = frontObj[frontName]; | ||
frontName = parts.shift(); | ||
} | ||
if (frontObj && frontObj[frontName]) { | ||
var element = form.find("[name="+field+"]"); | ||
if (element.attr('type') === 'checkbox') { | ||
element.attr('checked', frontObj[frontName]); | ||
} else { | ||
element.val(frontObj[frontName]); | ||
} | ||
} | ||
}); | ||
} | ||
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if (opts.id) { | ||
db.openDoc(opts.id, { | ||
attachPrevRev : opts.attachPrevRev, | ||
error: function() { | ||
if (opts.error) {opts.error.apply(opts, arguments);} | ||
}, | ||
success: function(doc) { | ||
if (opts.load || opts.onLoad) {(opts.load || opts.onLoad)(doc);} | ||
localFormDoc = doc; | ||
docToForm(doc); | ||
}}); | ||
} else if (opts.template) { | ||
if (opts.load || opts.onLoad) {(opts.load || opts.onLoad)(opts.template);} | ||
localFormDoc = opts.template; | ||
docToForm(localFormDoc); | ||
} | ||
var instance = { | ||
deleteDoc : function(opts) { | ||
opts = opts || {}; | ||
if (confirm("Really delete this document?")) { | ||
db.removeDoc(localFormDoc, opts); | ||
} | ||
}, | ||
localDoc : function() { | ||
formToDeepJSON(formSelector, opts.fields, localFormDoc); | ||
return localFormDoc; | ||
} | ||
}; | ||
return instance; | ||
} | ||
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function resolveModule(names, parent, current) { | ||
if (names.length === 0) { | ||
if (typeof current != "string") { | ||
throw ["error","invalid_require_path", | ||
'Must require a JavaScript string, not: '+(typeof current)]; | ||
} | ||
return [current, parent]; | ||
} | ||
// we need to traverse the path | ||
var n = names.shift(); | ||
if (n == '..') { | ||
if (!(parent && parent.parent)) { | ||
throw ["error", "invalid_require_path", 'Object has no parent '+JSON.stringify(current)]; | ||
} | ||
return resolveModule(names, parent.parent.parent, parent.parent); | ||
} else if (n == '.') { | ||
if (!parent) { | ||
throw ["error", "invalid_require_path", 'Object has no parent '+JSON.stringify(current)]; | ||
} | ||
return resolveModule(names, parent.parent, parent); | ||
} | ||
if (!current[n]) { | ||
throw ["error", "invalid_require_path", 'Object has no property "'+n+'". '+JSON.stringify(current)]; | ||
} | ||
var p = current; | ||
current = current[n]; | ||
current.parent = p; | ||
return resolveModule(names, p, current); | ||
} | ||
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var p = document.location.pathname.split('/'); | ||
p.shift(); | ||
var qs = document.location.search.replace(/^\?/,'').split('&'); | ||
var q = {}; | ||
qs.forEach(function(param) { | ||
var ps = param.split('='); | ||
var k = decodeURIComponent(ps[0]); | ||
var v = decodeURIComponent(ps[1]); | ||
if (["startkey", "endkey", "key"].indexOf(k) != -1) { | ||
q[k] = JSON.parse(v); | ||
} else { | ||
q[k] = v; | ||
} | ||
}); | ||
var mockReq = { | ||
path : p, | ||
query : q | ||
}; | ||
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var appExports = $.extend({ | ||
db : db, | ||
design : design, | ||
view : design.view, | ||
list : design.list, | ||
docForm : docForm, | ||
req : mockReq | ||
}, $.couch.app.app); | ||
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function handleDDoc(ddoc) { | ||
var moduleCache = []; | ||
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function getCachedModule(name, parent) { | ||
var key, i, len = moduleCache.length; | ||
for (i=0;i<len;++i) { | ||
key = moduleCache[i].key; | ||
if (key[0] === name && key[1] === parent) { | ||
return moduleCache[i].module; | ||
} | ||
} | ||
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return null; | ||
} | ||
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function setCachedModule(name, parent, module) { | ||
moduleCache.push({ key: [name, parent], module: module }); | ||
} | ||
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if (ddoc) { | ||
var require = function(name, parent) { | ||
var cachedModule = getCachedModule(name, parent); | ||
if (cachedModule !== null) { | ||
return cachedModule; | ||
} | ||
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var exports = {}; | ||
var resolved = resolveModule(name.split('/'), parent, ddoc); | ||
var source = resolved[0]; | ||
parent = resolved[1]; | ||
var s = "var func = function (exports, require) { " + source + " };"; | ||
try { | ||
eval(s); | ||
func.apply(ddoc, [exports, function(name) {return require(name, parent, source)}]); | ||
} catch(e) { | ||
throw ["error","compilation_error","Module require('"+name+"') raised error "+e.toSource()]; | ||
} | ||
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setCachedModule(name, parent, exports); | ||
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return exports; | ||
} | ||
appExports.ddoc = ddoc; | ||
appExports.require = require; | ||
} | ||
// todo make app-exports the this in the execution context? | ||
appFun.apply(appExports, [appExports]); | ||
} | ||
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if ($.couch.app.ddocs[design.doc_id]) { | ||
handleDDoc($.couch.app.ddocs[design.doc_id]) | ||
} else { | ||
// only open 1 connection for this ddoc | ||
if ($.couch.app.ddoc_handlers[design.doc_id]) { | ||
// we are already fetching, just wait | ||
$.couch.app.ddoc_handlers[design.doc_id].push(handleDDoc); | ||
} else { | ||
$.couch.app.ddoc_handlers[design.doc_id] = [handleDDoc]; | ||
db.openDoc(design.doc_id, { | ||
success : function(doc) { | ||
$.couch.app.ddocs[design.doc_id] = doc; | ||
$.couch.app.ddoc_handlers[design.doc_id].forEach(function(h) { | ||
h(doc); | ||
}); | ||
$.couch.app.ddoc_handlers[design.doc_id] = null; | ||
}, | ||
error : function() { | ||
$.couch.app.ddoc_handlers[design.doc_id].forEach(function(h) { | ||
h(); | ||
}); | ||
$.couch.app.ddoc_handlers[design.doc_id] = null; | ||
} | ||
}); | ||
} | ||
} | ||
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}); | ||
}; | ||
$.couch.app.ddocs = {}; | ||
$.couch.app.ddoc_handlers = {}; | ||
// legacy support. $.CouchApp is deprecated, please use $.couch.app | ||
$.CouchApp = $.couch.app; | ||
})(jQuery); | ||
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// JavaScript 1.6 compatibility functions that are missing from IE7/IE8 | ||
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if (!Array.prototype.forEach) | ||
{ | ||
Array.prototype.forEach = function(fun /*, thisp*/) | ||
{ | ||
var len = this.length >>> 0; | ||
if (typeof fun != "function") | ||
throw new TypeError(); | ||
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var thisp = arguments[1]; | ||
for (var i = 0; i < len; i++) | ||
{ | ||
if (i in this) | ||
fun.call(thisp, this[i], i, this); | ||
} | ||
}; | ||
} | ||
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if (!Array.prototype.indexOf) | ||
{ | ||
Array.prototype.indexOf = function(elt) | ||
{ | ||
var len = this.length >>> 0; | ||
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var from = Number(arguments[1]) || 0; | ||
from = (from < 0) | ||
? Math.ceil(from) | ||
: Math.floor(from); | ||
if (from < 0) | ||
from += len; | ||
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for (; from < len; from++) | ||
{ | ||
if (from in this && | ||
this[from] === elt) | ||
return from; | ||
} | ||
return -1; | ||
}; | ||
} |
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