流星客戶端Template.payment.onRendered
被觸發兩次,其中兩次調用服務器端方法,如何才能讓它在一次渲染兩次的情況下觸發後端方法,否則它如何才能獲得它只渲染一次? THX流星模板呈現兩次
//client
Template.mainMenu.events({
'click .menuItem': (event) => {
let menuShortName = event.currentTarget.dataset.template;
Session.set('taskSelected', menuShortName);
Meteor.call('mainAction', menuShortName);
}
});
Template.index.helpers({
'taskInputs': function() {
let task = Session.get('taskSelected');
let tasks = task ? task.split(',') : [];
let data = DisplayCol.find({action: {$in: tasks}}, {sort: {createdAt: 1}}).fetch();
return {items: data};
}
});
//server
'mainAction': function (menuShortName) {
DisplayCol.remove({userId: this.userId});
lib.displayMakeUp({'action': menuShortName});
},
'displayMakeUp': (doc) => {
for (let i = 0; i < attrItems.length; i++) {
if (attrItems[i].action === doc.action || attrItems[i].action.indexOf(doc.action + '_') >= 0) {
let group = {};
group = attrItems[i];
group.userId = Meteor.userId();
console.log(JSON.stringify(group));
DisplayCol.insert(group);
}
}
},
Template.payment.onRendered(function() {
Meteor.call('getClientToken', function (error, clientToken) {
if (error) {
console.log(error);
} else {
braintree.setup(clientToken, "dropin", {
container: "payment-form", // Injecting into <div id="payment-form"></div>
onPaymentMethodReceived: function (response) {
var nonce = response.nonce;
console.log(nonce);
}
});
}
});
});
模板:
<body>
{{> header}}
{{#if currentUser}}
{{#if isVerified}}
{{> index}} <-------------------------- (1)
{{else}}
<br><br><br><br>
<p>Check your email for your verification link!</p>
{{/if}}
{{else}}
{{> terms}}
{{/if}}
</body>
<template name="index">
<div id="main">
{{#if (display 'mainMenu')}}
{{> mainMenu}}
{{else}} {{#if (display 'content')}}
{{> Template.dynamic template="content" data=taskInputs}} <------------------- (2)
{{#if (session 'showFooter')}}
{{> footer}}
{{/if}}
{{/if}}{{/if}}
</div>
</template>
<template name="content">
{{> subMenu}}
<div id="main">
<div id="content">
<form>
<button type="submit" style="display:none"></button>
{{#if Template.subscriptionsReady}}
{{#each this.items}}
{{> sub}} <---------------------------------- (3)
{{/each}}
{{/if}}
</form>
</div>
</div>
</template>
<template name="sub">
{{#if isEqual element "payment"}}
{{> payment}} <--------------------------------------- (4)
{{/if}}
</template>
<template name="payment">
<form role="form">
<div class="row">
<div class="col-md-6 col-xs-12">
<br>
<div id="payment-form"></div>
<button type="submit" class="btn btn-success">Submit</button>
</div>
</div>
</form>
</template>
是你的''getClientToken「'方法服務器只或者客戶端和服務器? – ghybs
在服務器上定義,並由客戶端調用 –