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/*!
* kue - Job
* Copyright (c) 2011 LearnBoost <tj@learnboost.com>
* MIT Licensed
*/
/**
* Initialize a new `Job` with the given `data`.
*
* @param {Object} obj
*/
function Job(data) {
this.update(data);
}
/**
* Show progress indicator.
*
* @param {Boolean} val
* @return {Job} for chaining
*/
Job.prototype.showProgress = function (val) {
this._showProgress = val;
return this;
};
/**
* Show error message when `val` is true.
*
* @param {Boolean} val
* @return {Job} for chaining
*/
Job.prototype.showErrorMessage = function (val) {
this._showError = val;
return this;
};
/**
* Remove the job and callback `fn()`.
*
* @param {Function} fn
*/
Job.prototype.remove = function (fn) {
request('DELETE', './job/' + this.id, fn);
return this;
};
/**
* Update the job with the given `data`.
*
* @param {Object} data
* @return {Job} for chaining
*/
Job.prototype.update = function (data) {
for (var key in data) this[key] = data[key];
if (!this.data) this.data = {};
return this;
};
/**
* Render the job, returning an oQuery object.
*
* @param {Boolean} isNew
* @return {oQuery}
*/
Job.prototype.render = function (isNew) {
var self = this
, id = this.id
, view = this.view
, keys = Object.keys(this.data).sort()
, data;
if (isNew) {
view = this.view = View('job');
view.remove(function () {
this.remove();
self.remove();
});
var canvas = view.progress
, ctx = this.ctx = canvas.getContext('2d')
, progress = new Progress;
progress.size(canvas.width);
this._progress = progress;
// initially hide the logs
view.log.hide();
// populate title and id
view.el.attr('id', 'job-' + id);
view.id(id);
// show job data
for (var i = 0, len = keys.length; i < len; ++i) {
data = this.data[keys[i]];
if ('object' == typeof data) data = JSON.stringify(data);
var row = View('row');
// row.title(keys[i] + ':').value(data);
row.title(keys[i] + ':').value($('<p></p>').text(data).html());
view.data.add(row);
}
// alter state
view.state(this.state);
view.state().click(function () {
var select = o('<select>%s</select>', options(states, self.state));
o(this).replaceWith(select);
select.change(function () {
self.updateState(select.val());
});
return false;
});
// alter priority
view.priority(priority(this));
view.priority().click(function () {
var select = o('<select>%s</select>', options(priorities, self.priority));
o(this).replaceWith(select);
select.change(function () {
self.updatePriority(select.val());
})
return false;
});
// show details
view.el.find('.contents').toggle(function () {
view.details().addClass('show');
self.showDetails = true;
}, function () {
view.details().removeClass('show');
self.showDetails = false;
});
}
this.renderUpdate();
return view.el;
};
/**
* Update this jobs state to `state`.
*
* @param {String} state
*/
Job.prototype.updateState = function (state) {
request('PUT', './job/' + this.id + '/state/' + state);
};
/**
* Update this jobs priority to `n`.
*
* @param {Number} n
*/
Job.prototype.updatePriority = function (n) {
request('PUT', './job/' + this.id + '/priority/' + n);
};
/**
* Update the job view.
*/
Job.prototype.renderUpdate = function () {
// TODO: templates
var view = this.view
, showError = this._showError
, showProgress = this._showProgress;
// type
view.type(this.type);
// errors
if (showError && this.error) {
view.errorMessage(this.error.split('\n')[0]);
} else {
view.errorMessage().remove();
}
// attempts
if (this.attempts.made) {
view.attempts(this.attempts.made + '/' + this.attempts.max);
} else {
view.attempts().parent().remove();
}
// title
view.title(this.data.title
? this.data.title
: 'untitled');
// details
this.renderTimestamp('created_at');
this.renderTimestamp('updated_at');
this.renderTimestamp('failed_at');
// delayed
if ('delayed' == this.state) {
var delay = parseInt(this.delay, 10)
, creation = parseInt(this.created_at, 10)
, remaining = relative(creation + delay - Date.now());
view.title((this.data.title || '') + ' <em>( ' + remaining + ' )</em>');
}
// inactive
if ('inactive' == this.state) view.log.remove();
// completion
if ('complete' == this.state) {
view.duration(relative(this.duration));
view.updated_at().prev().text('Completed: ');
view.priority().parent().hide();
} else {
view.duration().parent().remove();
}
// error
if ('failed' == this.state) {
view.error().show().find('pre').text(this.error);
} else {
view.error().hide();
}
// progress indicator
if (showProgress) this._progress.update(this.progress).draw(this.ctx);
// logs
if (this.showDetails) {
request('GET', './job/' + this.id + '/log', function (log) {
var ul = view.log.show();
// return early if log hasnt changed
if (ul.text() === log) return;
ul.find('li').remove();
log.forEach(function (line) {
ul.append(o('<li>%s</li>', line));
});
});
}
};
/**
* Render timestamp for the given `prop`.
*
* @param {String} prop
*/
Job.prototype.renderTimestamp = function (prop) {
var val = this[prop]
, view = this.view;
if (val) {
view[prop]().text(relative(Date.now() - val) + ' ago');
} else {
view[prop]().parent().remove();
}
};