Created
May 27, 2016 13:12
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track first and last utms in mixpanel using segment
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<script type="text/javascript"> | |
analytics.ready(function(){ | |
function getQueryParam(url, param) { | |
// Expects a raw URL | |
param = param.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]"); | |
var regexS = "[\\?&]" + param + "=([^&#]*)", | |
regex = new RegExp( regexS ), | |
results = regex.exec(url); | |
if (results === null || (results && typeof(results[1]) !== 'string' && results[1].length)) { | |
return ''; | |
} else { | |
return decodeURIComponent(results[1]).replace(/\+/g, ' '); | |
} | |
}; | |
function campaignParams() { | |
var campaign_keywords = 'utm_source utm_medium utm_campaign utm_content utm_term'.split(' ') | |
, kw = '' | |
, params = {} | |
, first_params = {}; | |
var index; | |
for (index = 0; index < campaign_keywords.length; ++index) { | |
kw = getQueryParam(document.URL, campaign_keywords[index]); | |
if (kw.length) { | |
params[campaign_keywords[index] + ' [last touch]'] = kw; | |
} | |
} | |
for (index = 0; index < campaign_keywords.length; ++index) { | |
kw = getQueryParam(document.URL, campaign_keywords[index]); | |
if (kw.length) { | |
first_params[campaign_keywords[index] + ' [first touch]'] = kw; | |
} | |
} | |
mixpanel.people.set(params); | |
mixpanel.people.set_once(first_params); | |
mixpanel.register(params); | |
} | |
campaignParams(); | |
}); | |
</script> |
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