Created
July 1, 2021 16:40
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Magento 2: Dynamically Load Blocks from URL Parameters
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| <script type="application/javascript"> | |
| /** | |
| * Edit each block of conditions below based on your requirements | |
| */ | |
| var conditions = [ | |
| { | |
| 'parameter': 'utm_source', | |
| 'value': 'google', | |
| 'blockId': 'block-segment-a' | |
| }, | |
| { | |
| 'parameter': 'utm_source', | |
| 'value': 'newsletter', | |
| 'blockId': 'block-segment-b' | |
| }, | |
| { | |
| 'default': 'default-block' | |
| } | |
| ]; | |
| //------------------------------------------------------- | |
| (function (conditions) { | |
| this.buildUrl = function (blockId) { | |
| return window.location.origin | |
| + '/graphql?query=' | |
| + encodeURI( | |
| '{cmsBlocks(identifiers:"' + blockId + '"){items{content}}}' | |
| ) | |
| }; | |
| this.getParameterByName = function (name) { | |
| name = name.replace(/[\[\]]/g, '\\$&'); | |
| let regex = new RegExp('[?&]' + name + '(=([^&#]*)|&|#|$)'), | |
| results = regex.exec(window.location.href); | |
| if (!results) { | |
| return null; | |
| } | |
| if (!results[2]) { | |
| return ''; | |
| } | |
| return decodeURIComponent(results[2].replace(/\+/g, ' ')); | |
| }; | |
| this.getBlockId = function (conditions) { | |
| for (let i = 0; i < conditions.length; i++) { | |
| if ('default' in conditions[i]) { | |
| return conditions[i].default; | |
| } | |
| if (this.getParameterByName(conditions[i].parameter) == conditions[i].value) { | |
| return conditions[i].blockId; | |
| } | |
| } | |
| }; | |
| this.render = function (event) { | |
| try { | |
| let response = JSON.parse(event.target.responseText); | |
| event.target.referenceElement.outerHTML = response.data.cmsBlocks.items[0].content; | |
| } catch (error) { | |
| console.warn('Failed to render response: ' + error); | |
| } | |
| }; | |
| let blockId = this.getBlockId(conditions); | |
| if (blockId) { | |
| let request = new XMLHttpRequest(); | |
| request.addEventListener('load', this.render); | |
| request.referenceElement = document.currentScript; | |
| request.open('GET', this.buildUrl(blockId)); | |
| request.send(); | |
| } | |
| })(conditions); | |
| </script> |
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