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hen writing templates, much of a developer s time is devoted to forms. Despite this, forms are generally poorly designed. Since much attention is required to deal with default values, formatting, validation, repopulation, and form handling in general, some developers tend to skim over some important details in the process. Accordingly, symfony devotes special attention to this topic. This chapter describes the tools that automate many of these requirements while speeding up forms development: The form helpers provide a faster way to write form inputs in templates, especially for complex elements such as dates, drop-down lists, and rich text. When a form is devoted to editing the properties of an object, the templating can be further accelerated by using object form helpers. The YAML validation files facilitate form validation and repopulation. Validators package the code required to validate input. Symfony bundles validators for the most common needs, and it is very easy to add custom validators.

if(myRemoteServiceRecord != null) { // now let's open the connection: String url = myRemoteServiceRecord.getConnectionURL( ServiceRecord.NOAUTHENTICATE_NOENCRYPT, false); myStreamConnection = (StreamConnection)Connector.open(url); myOutputStream = myStreamConnection.openOutputStream(); byte[] oneByte = new byte[1]; oneByte[0] = (byte)START_GAME_FLAG; myOutputStream.write(oneByte); myManager.foundOpponent(); myInputStream = myStreamConnection.openInputStream(); runGame(myOutputStream, myInputStream); } else { myManager.errorMsg("failed to find remote player"); } } else { myManager.errorMsg("failed to find remote player"); } } catch (Exception e) { myManager.errorMsg("failed: " + e.getMessage()); } } /** * Implementation of DiscoveryListener. */ public void deviceDiscovered(RemoteDevice device, DeviceClass dc) { myRemoteDevices.addElement(device); } /** * Implementation of DiscoveryListener. */ public void inquiryCompleted(int discoveryType) { myDiscoveryType = discoveryType; synchronized(this) { notify(); } } /** * Implementation of DiscoveryListener. * For a given remote device, find its services. */ public synchronized void servicesDiscovered(int id, ServiceRecord[] sr) { if(myRemoteServiceRecord == null) {

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In templates, HTML tags of form elements are very often mixed with PHP code. Form helpers in symfony aim to simplify this task and to avoid opening < php echo tags repeatedly in the middle of <input> tags.

It s wonderful to get everybody empowered to get their own voice, but journalism is the practice that requires discipline, training, and just like being a good doctor, a cop, it takes experience to get to a point where you can really serve the public So you have got the tsunami of information that is descending on the average consumer You can now get so many different bits of news, and how do you assess whether the information that is being sent to you is credible or not In the old days, you can say, well, I trust Walter Cronkite or I trust the New York Times That was fine, but nowadays, the information is coming from millions of different sources, and you don t really have a quick way to assess what people are doing.

As explained in the previous chapter, you must use the form_tag() helper to create a form, since it transforms the action given as a parameter into a routed URL. The second argument can support additional options for instance, to change the default method, change the default enctype, or specify other attributes. Listing 10-1 shows examples. Listing 10-1. The form_tag() Helper < php echo form_tag('test/save') > => <form method="post" action="/path/to/save">

myRemoteServiceRecord = sr[0]; notify(); } } /** * Implementation of DiscoveryListener. * For a given remote device, find its services. */ public synchronized void serviceSearchCompleted(int id, int respCode) { // if none were found, notify that the search for services // on this device is done. if(myRemoteServiceRecord == null) { notify(); } } //-------------------------------------------------------// main game method /** * This is the main loop that controls the game play * back and forth. */ void runGame(OutputStream os, InputStream is) throws IOException { byte[] fourBytes = new byte[4]; while(! myShouldStop) { int state = myManager.getState(); if(state == MoveManager.LOCAL_TURN) { try { synchronized(this) { wait(); } } catch(InterruptedException e) { } try { if(myMove != null) { os.write(myMove); } } catch(IOException e) { // if we can't write anymore, the remote // player has probably closed the connection: myManager.errorMsg("remote player has quit"); } myMove = null; } else if(state == MoveManager.REMOTE_TURN) { byte moveData = (byte)is.read();

You can do it the hard way, which is to basically take every article you read and spend a couple of hours researching it However, people don t really have that kind of time to do this routinely Q So what does NewsTrust do about this A What we created is a way for people to aggregate that kind of work and that kind of evaluation, so that you can evaluate a story pretty thoroughly and others will get the benefit of that evaluation The way that we evaluate the stories is by looking at their journalistic quality.

< php echo form_tag('test/save', 'method=get multipart=true class=simpleForm') > => <form method="get" enctype="multipart/form-data" class="simpleForm" action="/path/to/save"> As there is no need for a closing form helper, you should use the HTML </form> tag, even if it doesn t look good in your source code.

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