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ember:&when&the&lights&go&on
@grandazz
github.com/achambers
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developing*since*2000
Javascript
Ruby
Java$and$Lotus$Notes
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github.com/ember.cli/ember.cli.deploy
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Wenguins
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this%is%not
an#ember#is#be(er#than#everything#else
presenta(on
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browser'dev'boiled'down
(shamelessley)borrowed)from)@ryanflorence)
interac(ng*with*data*stores
rendering'data'to'ui
responding*to*user*interac/on
router&&&urls
project(stuff:(file(organisa3on,(build(tools(etc
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the$wenguins'$journey$with
ember
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lightbulb!moments
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we#didn't#just#jump#in
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we#needed#to
validate
the$switch
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Service'Status
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// app/assets/javascripts/application.js
function bindViewMoreDetailsLinks() {
$('.more-details').hide();
$('.view-more').click(function(e) {
e.preventDefault();
var $viewMoreLink = $(this);
var $moreDetails = $viewMoreLink.parents('.issue').find('.more-details');
if ($moreDetails.is(':visible')) {
$moreDetails.hide();
$viewMoreLink.text('More details');
} else {
$moreDetails.show();
$viewMoreLink.text('Less details');
}
$viewMoreLink.toggleClass('opened');
});
}
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// app/assets/javascripts/application.js
function toggleElementsForEditors() {
$.ajax({
url: '/sessions/current',
dataType: 'json',
success: function(data) {
var loggedInStatus = data.logged_in;
toggleNewIssueLink(loggedInStatus);
toggleHeader(loggedInStatus);
toggleAdditionalLinks(loggedInStatus);
toggleSidebar(loggedInStatus);
toggleFooter(loggedInStatus);
toggleEditIssueLinks(loggedInStatus);
toggleResolveIssueLinks(loggedInStatus);
}
});
}
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// app/assets/javascripts/application.js
function toggleHeader(loggedInStatus) {
$('#skycom-masthead-wrapper').toggleClass('hidden', loggedInStatus);
}
function toggleAdditionalLinks(loggedInStatus) {
$('.additional-links').toggleClass('hidden', loggedInStatus);
}
function toggleSidebar(loggedInStatus) {
$('.sidebar').toggleClass('hidden', loggedInStatus);
}
function toggleFooter(loggedInStatus) {
$('#skycom-footer-wrapper').toggleClass('hidden', loggedInStatus);
}
function toggleEditIssueLinks(loggedInStatus) {
$('.btn.edit-issue').toggleClass('hidden', !loggedInStatus);
}
function toggleResolveIssueLinks(loggedInStatus) {
$('.btn.resolve-issue').toggleClass('hidden', !loggedInStatus);
}
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data$based$ui$manipula.on
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// app/views/issues/index.html.haml
function microfilterCheck() {
var deferred = $.Deferred();
$.getJSON('/sessions/current', function(json) {
if (json.logged_in) {
deferred.resolve()
} else {
Hub.runMicrofilterTest()
.done(function() { deferred.reject(); })
.fail(function() { deferred.resolve(); });
}
});
return deferred;
}
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// app/views/issues/index.html.haml
function restrictionCheck() {
var deferred = $.Deferred();
$.getJSON('/customers/current', function(json) {
if (json.customer.has_debt_restriction) {
deferred.reject('debt');
} else if (json.customer.has_high_spend_restriction) {
deferred.reject('spend');
} else {
deferred.resolve();
}
}, function() {
deferred.resolve();
});
return deferred;
}
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// app/views/issues/index.html.haml
$(function() {
var microfilterDeferred = microfilterCheck()
var restrictionDeferred = restrictionCheck()
$.when(microfilterDeferred, restrictionDeferred).always(function() {
var args = Array.prototype.slice.call(arguments);
if (restrictionDeferred.state() == 'rejected') {
if (args.indexOf('spend') !== -1) {
$('.high-spend-restriction-alert').removeClass('hidden');
} else if (args.indexOf('debt') !== -1) {
$('.debt-restriction-alert').removeClass('hidden');
}
} else if (microfilterDeferred.state() == 'rejected') {
$('.microfilter-alert').removeClass('hidden');
}
showIssues();
});
});
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then%the%very%next%commit...
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// app/views/issues/index.html.haml
$(function() {
IssuesIndexController.init();
});
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controllers
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// app/assets/javasctipts/User.js
var User = {
isAnEditor: function() {
var deferred = $.Deferred();
$.ajax({
dataType: 'json',
url: '/sessions/current',
success: function(data) {
deferred.resolve(data.logged_in);
},
error: function() {
deferred.reject();
}
});
return deferred.promise();
}
}
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// app/assets/javascripts/Diagnostics.js
var Diagnostics = {
run: function() {
//run some diagnostics goodness
}
}
// app/assets/javascripts/CBS.js
var CBS = {
run: function() {
//run some monstrosity of a service,
//return a massive payload we don't need
//and take forever to do so
}
}
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models
&
interac(ng*with*data*stores
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// app/assets/javascripts/views/IssueView.js
(function() {
window.IssuesView = {
render: function() {
this._showIssues();
this._toggleStatusMessage();
}
// ...snip...
};
})();
// app/assets/javascripts/views/DebtAlertView.js
(function() {
window.DebtAlertView = {
render: function() {
this._showAlert();
this._hideProducts();
this._hideSidebar();
this._informScreenReader();
}
// ...snip...
};
})();
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views
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{!-- app/assets/javascripts/templates/outages.hbs --}}
{{#each outages}}
{{description}}
Date issue was reported {{startedOn}}
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templa'ng
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we#started#to#build#our#own#framework
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we#started#to#build#our#own#framework
BADLY
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Use$a$framework,$or$don't.$Either$
way,$you$will.
—"Someone"Awesome
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conven&on'over'configura&on
this.resource('posts', { path: '/posts' })
PostsRoute
PostsController
PostsView
posts.hbs
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no#more#globals
var Diagnostics = {
run: function() {
// do stuff
}
};
window.IssuesIndexController = {
init: function() {
// do stuff;
}
};
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no#more#globals#,>#es2015#modules
// app/controllers/go-issues.js
export default Em.ArrayController.extend({
status: function() {
//do stuff
}.property('hasProblem')
});
// app/models/outage.js
export default DS.Model.extend({
//attributes here
});
// app/components/ss-accordion.js
export default Em.Component.extend({
collapsed: false,
//other properties here
});
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data$binding
// models/tv_issue.js
export default DS.Model.extend(
name: DS.attr('string')
);
// controllers/tv_issues.js
export default Em.ArrayController.extend({
});
-
<#each>
- {{name}}
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lightbulb(moments
didn't&stop
there
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leave%your%assump-ons
at#the#door
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don't&fight&the&framework
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If#something#feels#harder#than#it#
should#be,#it#probably#is.#You're#
probably#doing#it#wrong.
—"Someone"Awesome
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ui#error#logging
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ui#error#logging
Ember.onerror = handleError;
Ember.RSVP.on('error', handleError);
function handleError(error) {
Em.$.ajax('/error', {
type: 'POST',
data: { stack: error.stack }
});
}
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separa&on)of
ui#and#api
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clearer&separa)on&between&data
and$user$interac,on
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think¬&of&your&api&in&terms&of&ui&
interac2ons,&but&in&terms&of&data&
and&rela2onships
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your%app%is%a
client'of'your'api
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build&tools
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build&tools
lightening(fast(deployments
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build&tools
lightening(fast(deployments
pact%file%tes*ng
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Come%and%chat%to%me
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Come%and%chat%to%me
at#the#bar
tonight
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Come%and%chat%to%me
Thursday)9th)April
2"Wellington"Place
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Aaron&Chambers
@grandazz
github.com/achambers
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any$ques)ons?
@grandazz
github.com/achambers
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thanks'for'having'me