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Rethrow contextualized error in {{#each}}

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...in case the argument is a cursor with {fields: {_id: 0}}
This commit is contained in:
Avital Oliver
2014-01-07 04:32:17 -08:00
parent e3578c6c30
commit 4e8d858923
1 changed files with 45 additions and 39 deletions
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84
packages/ui/each.js
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@@ -73,50 +73,56 @@ UI.Each = Component.extend({
}
};
this.observeHandle = ObserveSequence.observe(function () {
return self.get('sequence');
}, {
addedAt: function (id, item, i, beforeId) {
addToCount(1);
id = LocalCollection._idStringify(id);
try {
this.observeHandle = ObserveSequence.observe(function () {
return self.get('sequence');
}, {
addedAt: function (id, item, i, beforeId) {
addToCount(1);
id = LocalCollection._idStringify(id);
var data = item;
var dep = new Deps.Dependency;
var data = item;
var dep = new Deps.Dependency;
// function to become `comp.data`
var dataFunc = function () {
dep.depend();
return data;
};
// Storing `$set` on `comp.data` lets us
// access it from `changed`.
dataFunc.$set = function (v) {
data = v;
dep.changed();
};
// function to become `comp.data`
var dataFunc = function () {
dep.depend();
return data;
};
// Storing `$set` on `comp.data` lets us
// access it from `changed`.
dataFunc.$set = function (v) {
data = v;
dep.changed();
};
if (beforeId)
beforeId = LocalCollection._idStringify(beforeId);
if (beforeId)
beforeId = LocalCollection._idStringify(beforeId);
var renderedItem = UI.render(content.withData(dataFunc), self);
range.add(id, renderedItem, beforeId);
},
removed: function (id, item) {
addToCount(-1);
range.remove(LocalCollection._idStringify(id));
},
movedTo: function (id, item, i, j, beforeId) {
range.moveBefore(
LocalCollection._idStringify(id),
beforeId && LocalCollection._idStringify(beforeId));
},
changed: function (id, newItem) {
range.get(LocalCollection._idStringify(id)).data.$set(newItem);
}
});
var renderedItem = UI.render(content.withData(dataFunc), self);
range.add(id, renderedItem, beforeId);
},
removed: function (id, item) {
addToCount(-1);
range.remove(LocalCollection._idStringify(id));
},
movedTo: function (id, item, i, j, beforeId) {
range.moveBefore(
LocalCollection._idStringify(id),
beforeId && LocalCollection._idStringify(beforeId));
},
changed: function (id, newItem) {
range.get(LocalCollection._idStringify(id)).data.$set(newItem);
}
});
// on initial render, display the else clause if no items
addToCount(0);
// on initial render, display the else clause if no items
addToCount(0);
} catch (e) {
// XXX is there a way to print at which file and line number
// this {{#each}} is defined?
throw new Error("{{#each}} failed: " + e.message);
}
},
destroyed: function () {
if (this.observeHandle)