Blocks

The "Javascript Unserializer" inserts a javascript block with the unserialize routine:

unserialize(phptext);

• phptext: Serialized PHP Object.

Examples:

unserialize('O:8:"stdClass":2:{s:5:"attr1";s:15:"First Attribute";s:5:"attr2";s:16:"Second Attribute";}');

Output would be a javascript object with the structure:

{attr1:"First Attribute", attr2:"Second Attribute"}

"Line Chart" inserts a javascript block with the setLineChartBlock routine to generate line chart into a canvas tag with the values passed as parameters:

setLineChartBlock(canvasId, data, config);

• canvasId: the routine requires you insert a <canvas id="canvasId"></canvas> tag in your webpage where display the chart. The id of the canvas tag should be passed as the first parameter of the routine.
• data: array of datasets with the information to display in the chart. For example:
  
    [
      {
        'dataset': 'First Dataset',
        'color' : 'red',
        'values' : {
          'label a': 10,
          'label b': 15,
        'label c': 30
        }
      },
      {
        'dataset': 'Second Dataset',
        'color' : 'blue',
        'values' : {
          'label a': 40,
          'label b': 20,
          'label c': 5
        }
      }
    ]
• config: object tha allows to define the chart title. For example:
  
  {'title': 'Line Chart'}

Example:

setLineChartBlock('canvasId', [{'dataset': 'First Dataset','color': 'red','values': {'label a': 10,'label b': 15,'label c': 30}},{'dataset': 'Second Dataset','color': 'blue','values': {'label a': 40,'label b': 20,'label c': 5}}],{'title': 'Line Chart'});

This will insert a code block to detect HTTP or HTTPS and then force usage of HTTPS to be sure that the page is loaded over a SSL secure connection. Note that your website domain must have SSL available in order to use this feature.

The block reads the exchange rates from the Currency Converter API website

The block reads the exchange rates from the Fixer.io website

The block includes the xe_fixerio_exchange_rates operation whose parameter is a plain object with the following properties:

• from: a three letters currency code. For example: USD (required)
• to: a three letters currency code. For example: GBP (required)
• field: a valid jQuery selector of an input tag for assigning the exchange rate. For example, if you are using the calculated fields form plugin, and you want to assign the exchange rate to the fieldname1 field, the selector would be: [id*="fieldname1_"] (optional)
• callback: a function that will receive as parameter an object with all currencies codes and the corresponding exchange rates. For example: function(rates){alert(rates['EUR']);} (optional)
• url: the URL to the public website. In cases where the URL to the public website and the WordPress are different, might be require pass to the block the URL to the public website (optional)

Example:

xe_fixerio_exchange_rates({'from': 'USD', 'to': 'EUR', 'field': '[id*="fieldname'+'1_"]'});

A specific example: Assuming there is a field in the form that calculate a service price in United State Dollars (USD), the fieldname1, and you want get the price in Euros (EUR), furthermore there is a hidde field for the exchange rate, the fieldname2. The equation to associate with the calculated field to calculate the price in Euros would be:

(function(){
xe_fixerio_exchange_rates({'from': 'USD', 'to': 'EUR', 'field': '[id*="fieldname'+'2_"]'});
return fieldname1*fieldname2;
})()

If there is a dropdown field for selecting the currency code, the fieldname3, the equation would be:

(function(){
xe_fixerio_exchange_rates({'from': 'USD', 'to': fieldname3, 'field': '[id*="fieldname'+'2_"]'});
return fieldname1*fieldname2;
})()

"Bar Chart" inserts a javascript block with the setBarChartBlock routine to generate bar chart into a canvas tag with the values passed as parameters:

setBarChartBlock(canvasId, values);

• canvasId: the routine requires you insert a <canvas id="canvasId"></canvas> tag in your webpage where display the chart. The id of the canvas tag should be passed as the first parameter of the routine.
• values: array of values to display in the chart. For example: [10,5,100].
  
  To display a label associated to the values, the elements in the array must be objects with the structure: {label: <text here>, value: <number here>}
  For example: [{label: 'First item', value: 10},{label: 'Second item', value: 5},{label: 'Third item', value: 100}]
  
  To specify the colors of bars, define the colors code as part of the object (if no colors are defined, the plugin will use the default colors).
  For example: [{label: 'First item', value: 10, color: '#FF0000'},{label: 'Second item', value: 5, color: '#00FF00'},{label: 'Third item', value: 100, color: '#0000FF'}]

Example:

setBarChartBlock('canvasId', [{label: 'First item', value: 10, color: '#FF0000'},{label: 'Second item', value: 5, color: '#00FF00'},{label: 'Third item', value: 100, color: '#0000FF'}]);

"Pie Chart" inserts a javascript block with the setPieChartBlock routine to generate pie chart into a canvas tag with the values passed as parameters:

setPieChartBlock(canvasId, values);

• canvasId: the routine requires you insert a <canvas id="canvasId"></canvas> tag in your webpage where display the chart. The id of the canvas tag should be passed as the first parameter of the routine.
• values: array of values to display in the chart. For example: [10,5,100].
  
  To display a label associated to the values, the elements in the array must be objects with the structure: {label: <text here>, value: <number here>}
  For example: [{label: 'First item', value: 10},{label: 'Second item', value: 5},{label: 'Third item', value: 100}]
  
  To specify the colors of bars, define the colors code as part of the object (if no colors are defined, the plugin will use the default colors).
  For example: [{label: 'First item', value: 10, color: '#FF0000'},{label: 'Second item', value: 5, color: '#00FF00'},{label: 'Third item', value: 100, color: '#0000FF'}]

Example:

setPieChartBlock('canvasId', [{label: 'First item', value: 10, color: '#FF0000'},{label: 'Second item', value: 5, color: '#00FF00'},{label: 'Third item', value: 100, color: '#0000FF'}]);

This will insert a block to find out if the page is embedded as a frame to other site and will prevent that by redirecting to the correct page without framing.

Message if framing detected: