javascript - GrapesJs and PHP - store and load data to show in editor and as HTML page as well

Question

I am using GrapesJS to build a simple webpage.

I included the script in the following way inside head part :

<script type="text/javascript" src="js/jquery-1.10.2.js"></script>
<link rel="stylesheet" type="text/css" href="grapesjs-dev/dist/css/grapes.min.css">
<script type="text/javascript" src="grapesjs-dev/dist/grapes.min.js"></script>

HTML:

<div id="gjs" style="height:0px; overflow:hidden;">
</div>

Javascript :

<script>      
       var editor = grapesjs.init({
        showOffsets: 1,
        noticeOnUnload: 0,
        container: '#gjs',

        fromElement: true,

        height: '100%',
        fromElement: true,
        storageManager: { autoload: 0 },


   assetManager: {

     assets: [
     'http://placehold.it/350x250/78c5d6/fff/image1.jpg',
     // Pass an object with your properties
     {
       type: 'image',
       src: 'http://placehold.it/350x250/459ba8/fff/image2.jpg',
       height: 350,
       width: 250
     },
     {
       // As the 'image' is the base type of assets, omitting it will
       // be set as `image` by default
       src: 'http://placehold.it/350x250/79c267/fff/image3.jpg',
       height: 350,
       width: 250
     },
    ],

  },


   storageManager: {
    type: 'remote',
    stepsBeforeSave: 1,
    autosave: true,         // Store data automatically
    autoload: true,
    urlStore: 'save_now.php',
    urlLoad: 'load_now.php',
    // ContentType: 'application/json',
    // For custom parameters/headers on requests
    //params: { _some_token: '....' },
    contentTypeJson: true,
      storeComponents: true,
    storeStyles: true,
    storeHtml: true,
    storeCss: true,
     headers: {
    'Content-Type': 'application/json'
    },
    json_encode:{
    "gjs-html": [],
    "gjs-css": [],
    }
  //headers: { Authorization: 'Basic ...' },
  }


      });

 window.editor= editor;




var blockManager = editor.BlockManager;

// 'my-first-block' is the ID of the block
blockManager.add('my-first-block', {
  label: 'Simple block',
  content: '<div class="my-block">This is a simple block</div>',
});


 </script>

So I get in the blocks panel a block namely Simple block which I can drag and drop on the editor. When ever any change is made then the autosave is trigerred with an ajax call to save.php file. Inside save.php, I have:

$content_found="";
$content_found= file_get_contents('php://input');

mysqli_real_escape_string($conn, $content_found);
echo " content found = ".$content_found;
$sql = "INSERT INTO `grapes_content` (`content_found`)
VALUES ('".$content_found."')";

But in Chrome developer tool network tab, I can see :

It is not clear what payload variables I should save in database and how . I used $content_found= file_get_contents('php://input'); to get the full content instead.

After saving it into DB, on page refresh, I load the page with load_now.php. Inside load_now.php, I have :

$content_found="";
$sql = "SELECT * FROM  `grapes_content`";
$result=$conn->query($sql);
$content_found="";
while($row=mysqli_fetch_assoc($result)){

    $content_found=$row['content_found'];

}

echo $content_found;

But the editor shows no saved data.

I am pretty sure that the way I save and retrieve data is not correct. So points are:

Q1) What things should I save in database ? And how can I get the variables or data from ajax payload or in any other way ?

Q2) How can I show the saved data into the editor after page reload ?

In the editor, I see a preview option with an eye image that can show me the HTML page without any editor.

Q3) After saving data into database, how can I show the data simply just as a HTML page and not inside any editor ?

Answer 1

for Q3 you can use a "frontend option" like this:

NOTE 1: i'm using angularJS

NOTE 2: $scope.editor is my grapesJs instance

Function to get HTML+CSS inline

$scope.getHtmlCss = function(){
    var html = $scope.editor.runCommand('gjs-get-inlined-html');
    $log.log("-----> HTML & INLINED CSS: ", html);
    return html;
}

In your GrapesJs editor add an new option for "Donwload HTML file"

          $scope.editor.Panels.addButton('options', [ 
            { id: 'save', 
              className: 'fa fa-file-code-o', 
              command: function(editor1, sender) { 

                if($scope.getHtmlCss()){
                  $scope.generateFile($scope.getHtmlCss());                      
                }

              }, 
              attributes: { title: 'Download HMTL file' } 
            }, ]);

function to generate HTML file:

$scope.generateFile = function(code){

      $(function() 
        {
          console.log( "ready!" );
          // Check for the various File API support.
          if (window.File && window.FileReader && window.FileList && window.Blob) 
          {
            saveText(code, 'text/html;charset=utf-8', 'mailing.html');
          } 
          else 
          {
            alert('The File APIs are not fully supported in this browser.');
          }
        }
       );

      function saveText(text, mime, file)
      {
        var blob = new Blob([text], {type: mime});
        saveAs(blob, file);

        return false;
      }

      function handleFileSelect(code, mimeType) 
      {

        var reader = new FileReader();
        // Closure to capture the file information.
        reader.onload = (
          function(theFile) 
          {
            return function(e) 
            {
              target.html( e.target.result );
            };
          }
        )(file);

        // Read in the image file as a data URL.
        reader.readAsText(file);
      }



}