Meteor js custom pagination - meteor

Question

I kindly need a support. I have written a pagination following a YouTube tutorial, which works fine with the exception of when going backwards again. It has only 2 buttons, previous and next, when the next button is clicked it works fine but the previous button only go backwards once. Let's say I have 20 records in the collections paginated to display 5 at a time, the next button could go to the end to the fourth page but the previous button would not go pass one step backwards. Please what am I to do to have pagination experience? The previous button is suppose to navigate to the last page as long as the user clicks.
Events for the pagination buttons:
Template.myviews.events({
'click .previous': function () {
if (Session.get('skip') > 5 ) {
Session.set('skip', Session.get('skip') - 5 );
}
},
'click .next': function () {
Session.set('skip', Session.get('skip') + 5 );
}
});
Publication:
Meteor.publish('userSchools', function (skipCount) {
check(skipCount, Number);
user = Meteor.users.findOne({ _id: this.userId });
if(user) {
if(user.emails[0].verified) {
return SchoolDb.find({userId: Meteor.userId()}, {limit: 5, skip: skipCount});
} else {
throw new Meteor.Error('Not authorized');
return false;
}
}
});
Subscription:
Session.setDefault('skip', 0);
Tracker.autorun(function () {
Meteor.subscribe('userSchools', Session.get('skip'));
});
Blaze pagination buttons:
<ul class="pager">
<li class="previous">Previous </li>
<li class="next">Next </li>
</ul>
Template helper:
RenderSchool: function () {
if(Meteor.userId()) {
if(Meteor.user().emails[0].verified) {
return SchoolDb.find({userId: Meteor.userId()}).fetch().reverse();
} else {
FlowRouter.go('/');
Bert.alert('Please verify your account to proceed', 'success', 'growl-top-right');
}
}
}

Answer 1

You have 6 documents total with 2 docs per page, 3 pages in total.
Your if condition in previous button click handler prevents you from going to the first page:
if (Session.get('skip') > 2 /* testing */ ) {
...
}
For 2nd page skip will equal 2 and on the next click this condition will be false, preventing from going back.
When you're on the 3rd page — you can go on 2nd only, creating an impression that button works only once.
It should be like this:
if (Session.get('skip') > 0 ) {
...
}