add Ox.api, to apify and array

This commit is contained in:
rlx 2012-03-29 14:43:05 +00:00
parent b807fc81af
commit 7b4002b340

View file

@ -1,5 +1,175 @@
'use strict'; 'use strict';
/*@
Ox.api <f> Turns an array into a list API
(items) -> <f> List API
(items, keys) -> <f> List API
items <[o]> An array of objects
keys <[s]> Array of keys to be included in totals
<script>
Ox.test.api = Ox.api([
{id: 'foo', n: 2},
{id: 'bar', n: 2},
{id: 'baz', n: 1}
], ['n']);
Ox.test.apiResults = {
0: Ox.test.api(),
1: Ox.test.api({
keys: []
}),
2: Ox.test.api({
keys: ['id'],
sort: ['-n', '+id']
}),
3: Ox.test.api({
keys: [],
query: {
conditions: [
{key: 'id', value: 'f', operator: '!^'},
{key: 'n', value: 1, operator: '>'}
],
operator: '&'
}
}),
4: Ox.test.api({
keys: [],
query: {
conditions: [
{key: 'id', value: 'O', operator: '='},
{key: 'n', value: [1, 2], operator: '='}
],
operator: '|'
},
sort: ['+id']
}),
5: Ox.test.api({
keys: [],
query: {
conditions: [
{key: 'id', value: 'f', operator: '='},
{
conditions: [
{key: 'id', value: 'a', operator: '='},
{key: 'id', value: 'z', operator: '='}
],
operator: '&'
}
],
operator: '|'
},
sort: ['+id']
}),
6: Ox.test.api({
keys: [],
range: [1, 2],
sort: ['+id']
})
};
</script>
> Ox.test.apiResults[0].data
{items: 3, n: 5}
> Ox.test.apiResults[1].data
{items: [{id: 'foo', n: 2}, {id: 'bar', n: 2}, {id: 'baz', n: 1}]}
> Ox.test.apiResults[2].data
{items: [{id: 'bar'}, {id: 'foo'}, {id: 'baz'}]}
> Ox.test.apiResults[3].data
{items: [{id: 'bar', n: 2}]}
> Ox.test.apiResults[4].data
{items: [{id: 'baz', n: 1}, {id: 'foo', n: 2}]}
> Ox.test.apiResults[5].data
{items: [{id: 'baz', n: 1}, {id: 'foo', n: 2}]}
> Ox.test.apiResults[6].data
{items: [{id: 'baz', n: 1}]}
@*/
Ox.api = function(items, keys) {
keys = keys || [];
function testCondition(item, condition) {
var key = condition.key,
operator = condition.operator.replace('!', ''),
value = condition.value,
not = condition.operator[0] == '!',
itemValue = item[key],
test = {
'=': function(a, b) {
return Ox.isArray(b) ? a >= b[0] && a < b[1]
: Ox.isString(a) ? a.indexOf(b) > -1
: a === b;
},
'==': function(a, b) { return a === b; },
'<': function(a, b) { return a < b; },
'>': function(a, b) { return a > b; },
'<=': function(a, b) { return a <= b; },
'>=': function(a, b) { return a >= b; },
'^': function(a, b) { return Ox.starts(a, b); },
'$': function(a, b) { return Ox.ends(a, b); },
};
if (Ox.isString(value)) {
value = value.toLowerCase();
}
if (Ox.isString(itemValue)) {
itemValue = itemValue.toLowerCase();
}
return test[operator](itemValue, value) == !not;
}
function testQuery(item, query) {
var match = true;
Ox.forEach(query.conditions, function(condition) {
if (condition.conditions) {
match = testQuery(item, condition);
} else {
match = testCondition(item, condition)
}
if (
(query.operator == '&' && !match)
|| (query.operator == '|' && match)
) {
return false;
}
});
return match;
}
return function(options) {
var data,
result = {data: {}, status: {code: 200, text: 'ok'}};
options = options || {};
if (options.query) {
result.data.items = items.filter(function(item) {
return testQuery(item, options.query);
});
} else {
result.data.items = Ox.clone(items);
}
if (options.keys) {
if (options.sort) {
result.data.items = Ox.sortBy(result.data.items, options.sort);
}
if (!Ox.isEmpty(options.keys)) {
result.data.items = result.data.items.map(function(item) {
var ret = {};
options.keys.forEach(function(key) {
ret[key] = item[key];
});
return ret;
});
}
if (options.range) {
result.data.items = Ox.sub(
result.data.items, options.range[0], options.range[1]
);
}
} else {
data = {items: result.data.items.length};
keys.forEach(function(key) {
data[key] = Ox.sum(result.data.items.map(function(item) {
return item[key];
}));
})
result.data = data;
}
return result;
};
};
/*@ /*@
Ox.compact <f> Removes <code>null</code> or <code>undefined</code> values Ox.compact <f> Removes <code>null</code> or <code>undefined</code> values
> Ox.compact([null,,1,,2,,3]) > Ox.compact([null,,1,,2,,3])
@ -151,7 +321,7 @@ Ox.range = function() {
var length = by.length, values = {}; var length = by.length, values = {};
by = by.map(function(v) { by = by.map(function(v) {
return { return {
key: v.replace(/^[\+\-]/g, ''), key: v.replace(/^[\+\-]/, ''),
operator: v[0] == '-' ? '-' : '+' operator: v[0] == '-' ? '-' : '+'
}; };
}); });