cablegates/static/js/pandora/Query.js

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// vim: et:ts=4:sw=4:sts=4:ft=javascript
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pandora.Query = (function() {
function constructFind(query) {
//Ox.print('cF', query)
return /*encodeURI(*/$.map(query.conditions, function(v, i) {
if (!Ox.isUndefined(v.conditions)) {
return '[' + constructFind(v) + ']';
} else {
return v.value !== '' ? v.key + (v.key ? ':' : '') + constructValue(v.value, v.operator) : null;
}
}).join(query.operator)/*)*/;
}
function constructValue(value, operator) {
operator = operator.replace('=', '^$');
if (operator.indexOf('$') > -1) {
value = operator.substr(0, operator.length - 1) + value + '$';
} else {
value = operator + value;
}
return value;
}
function mergeFind() {
}
function parseFind(str) {
str = str || '';
var find = {
conditions: [],
operator: ''
},
subconditions = str.match(/\[.*?\]/g) || [];
$.each(subconditions, function(i, v) {
subconditions[i] = v.substr(1, v.length - 2);
str = str.replace(v, '[' + i + ']');
});
if (str.indexOf(',') > -1) {
find.operator = '&';
} else if (str.indexOf('|') > -1) {
find.operator = '|';
}
//Ox.print('pF', str, find.operator)
find.conditions = $.map(find.operator === '' ? [str] : str.split(find.operator == '&' ? ',' : '|'), function(v, i) {
//Ox.print('v', v)
var ret, kv;
if (v[0] == '[') {
//Ox.print('recursion', subconditions)
ret = parseFind(subconditions[parseInt(v.substr(1, v.length - 2))]);
} else {
kv = ((v.indexOf(':') > - 1 ? '' : ':') + v).split(':');
if (kv[0] == 'list') { // fixme: this is just a hack
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pandora.user.ui.listQuery = {conditions: [$.extend({
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key: kv[0]
}, parseValue(kv[1]))], operator: ''};
} else {
ret = $.extend({
key: kv[0]
}, parseValue(kv[1]));
}
}
return ret;
});
return find;
}
function parseValue(str) {
var value = {
value: decodeURI(str),
operator: ''
};
if (value.value[0] == '!') {
value.operator = '!';
value.value = value.value.substr(1);
}
if ('^<>'.indexOf(value.value[0]) > -1) {
value.operator += value.value[0];
value.value = value.value.substr(1);
}
if (value.value.substr(-1) == '$') {
value.operator += '$';
value.value = value.value.substr(0, value.value.length - 1);
}
value.operator = value.operator.replace('^$', '=');
return value;
}
return {
fromString: function(str) {
var list = '',
query = Ox.unserialize(str.substr(1)),
sort = [];
if ('find' in query) {
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pandora.user.ui.listQuery = {conditions: [], operator: ''}; // fixme: hackish
pandora.user.ui.findQuery = parseFind(query.find);
if (pandora.user.ui.listQuery.conditions.length) {
list = pandora.user.ui.listQuery.conditions[0].value;
!pandora.user.ui.lists[list] && pandora.UI.set(
['lists', list].join('|'), pandora.site.user.ui.lists['']
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);
}
pandora.UI.set({list: list});
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//Ox.print('user.ui.findQuery', pandora.user.ui.findQuery)
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}
if ('sort' in query) {
sort = query.sort.split(',');
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pandora.UI.set(['lists', pandora.user.ui.list, 'sort'].join('|'), $.map(query.sort.split(','), function(v, i) {
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var hasOperator = '+-'.indexOf(v[0]) > -1,
key = hasOperator ? query.sort.substr(1) : query.sort,
operator = hasOperator ? v[0]/*.replace('+', '')*/ : pandora.getSortOperator(key);
return {
key: key,
operator: operator
};
}));
}
if ('view' in query) {
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pandora.UI.set(['lists', pandora.user.ui.list, 'listView'].join('|'), query.view);
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}
},
toObject: function(groupId) {
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//Ox.print('tO', pandora.user.ui.findQuery.conditions)
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// the inner $.merge() creates a clone
var conditions = $.merge(
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$.merge([], pandora.user.ui.listQuery.conditions),
pandora.user.ui.findQuery.conditions
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),
operator;
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$.merge(conditions, pandora.user.queryGroups ? $.map(pandora.user.queryGroups, function(v, i) {
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if (v.id != groupId && v.query.conditions.length) {
return v.query.conditions.length == 1 ?
v.query.conditions : v.query;
}
}) : []);
operator = conditions.length < 2 ? '' : ','; // fixme: should be &
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//Ox.print('>>', groupId, pandora.user.ui.find, conditions);
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return {
conditions: conditions,
operator: operator
};
},
toString: function() {
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//Ox.print('tS', pandora.user.ui.find)
var sort = pandora.user.ui.lists[pandora.user.ui.list].sort[0],
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key = sort.key,
operator = sort.operator;
return '?' + Ox.serialize({
find: constructFind(pandora.Query.toObject()),
sort: (operator == pandora.getSortOperator(key) ? '' : operator) + key,
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view: pandora.user.ui.lists[pandora.user.ui.list].listView
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});
}
};
})();