devextreme
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HTML5 JavaScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (data/odata/query_adapter.js)
* Version: 18.1.3
* Build date: Tue May 15 2018
*
* Copyright (c) 2012 - 2018 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
;
var typeUtils = require("../../core/utils/type"),
iteratorUtils = require("../../core/utils/iterator"),
extend = require("../../core/utils/extend").extend,
queryAdapters = require("../query_adapters"),
odataUtils = require("./utils"),
serializePropName = odataUtils.serializePropName,
errors = require("../errors").errors,
dataUtils = require("../utils"),
isFunction = typeUtils.isFunction,
isPlainObject = typeUtils.isPlainObject,
grep = require("../../core/utils/common").grep;
var DEFAULT_PROTOCOL_VERSION = 2;
var makeArray = function(value) {
return "string" === typeUtils.type(value) ? value.split() : value
};
var compileCriteria = function() {
var protocolVersion, fieldTypes;
var createBinaryOperationFormatter = function(op) {
return function(prop, val) {
return prop + " " + op + " " + val
}
};
var createStringFuncFormatter = function(op, reverse) {
return function(prop, val) {
var bag = [op, "("];
if (reverse) {
bag.push(val, ",", prop)
} else {
bag.push(prop, ",", val)
}
bag.push(")");
return bag.join("")
}
};
var formatters = {
"=": createBinaryOperationFormatter("eq"),
"<>": createBinaryOperationFormatter("ne"),
">": createBinaryOperationFormatter("gt"),
">=": createBinaryOperationFormatter("ge"),
"<": createBinaryOperationFormatter("lt"),
"<=": createBinaryOperationFormatter("le"),
startswith: createStringFuncFormatter("startswith"),
endswith: createStringFuncFormatter("endswith")
};
var formattersV2 = extend({}, formatters, {
contains: createStringFuncFormatter("substringof", true),
notcontains: createStringFuncFormatter("not substringof", true)
});
var formattersV4 = extend({}, formatters, {
contains: createStringFuncFormatter("contains"),
notcontains: createStringFuncFormatter("not contains")
});
var compileBinary = function(criteria) {
criteria = dataUtils.normalizeBinaryCriterion(criteria);
var op = criteria[1],
formatters = 4 === protocolVersion ? formattersV4 : formattersV2,
formatter = formatters[op.toLowerCase()];
if (!formatter) {
throw errors.Error("E4003", op)
}
var fieldName = criteria[0],
value = criteria[2];
if (fieldTypes && fieldTypes[fieldName]) {
value = odataUtils.convertPrimitiveValue(fieldTypes[fieldName], value)
}
return formatter(serializePropName(fieldName), odataUtils.serializeValue(value, protocolVersion))
};
var compileUnary = function(criteria) {
var op = criteria[0],
crit = compileCore(criteria[1]);
if ("!" === op) {
return "not (" + crit + ")"
}
throw errors.Error("E4003", op)
};
var compileGroup = function(criteria) {
var groupOperator, nextGroupOperator, bag = [];
iteratorUtils.each(criteria, function(index, criterion) {
if (Array.isArray(criterion)) {
if (bag.length > 1 && groupOperator !== nextGroupOperator) {
throw new errors.Error("E4019")
}
bag.push("(" + compileCore(criterion) + ")");
groupOperator = nextGroupOperator;
nextGroupOperator = "and"
} else {
nextGroupOperator = dataUtils.isConjunctiveOperator(this) ? "and" : "or"
}
});
return bag.join(" " + groupOperator + " ")
};
var compileCore = function(criteria) {
if (Array.isArray(criteria[0])) {
return compileGroup(criteria)
}
if (dataUtils.isUnaryOperation(criteria)) {
return compileUnary(criteria)
}
return compileBinary(criteria)
};
return function(criteria, version, types) {
fieldTypes = types;
protocolVersion = version;
return compileCore(criteria)
}
}();
var createODataQueryAdapter = function(queryOptions) {
var _select, _skip, _take, _countQuery, _sorting = [],
_criteria = [],
_expand = queryOptions.expand,
_oDataVersion = queryOptions.version || DEFAULT_PROTOCOL_VERSION;
var hasSlice = function() {
return _skip || void 0 !== _take
};
var hasFunction = function hasFunction(criterion) {
for (var i = 0; i < criterion.length; i++) {
if (isFunction(criterion[i])) {
return true
}
if (Array.isArray(criterion[i]) && hasFunction(criterion[i])) {
return true
}
}
return false
};
var generateSelectExpand = function() {
var hasDot = function(x) {
return /\./.test(x)
};
var generateSelect = function() {
if (!_select) {
return
}
if (_oDataVersion < 4) {
return serializePropName(_select.join())
}
return grep(_select, hasDot, true).join()
};
var generateExpand = function() {
var generatorV2 = function() {
var hash = {};
if (_expand) {
iteratorUtils.each(makeArray(_expand), function() {
hash[serializePropName(this)] = 1
})
}
if (_select) {
iteratorUtils.each(makeArray(_select), function() {
var path = this.split(".");
if (path.length < 2) {
return
}
path.pop();
hash[serializePropName(path.join("."))] = 1
})
}
return iteratorUtils.map(hash, function(k, v) {
return v
}).join()
};
var generatorV4 = function() {
var format = function(hash) {
var formatCore = function formatCore(hash) {
var result = "",
select = [],
expand = [];
iteratorUtils.each(hash, function(key, value) {
if (Array.isArray(value)) {
[].push.apply(select, value)
}
if (isPlainObject(value)) {
expand.push(key + formatCore(value))
}
});
if (select.length || expand.length) {
result += "(";
if (select.length) {
result += "$select=" + iteratorUtils.map(select, serializePropName).join()
}
if (expand.length) {
if (select.length) {
result += ";"
}
result += "$expand=" + iteratorUtils.map(expand, serializePropName).join()
}
result += ")"
}
return result
};
var result = [];
iteratorUtils.each(hash, function(key, value) {
result.push(key + formatCore(value))
});
return result.join()
};
var parseTree = function(exprs, root, stepper) {
var parseCore = function parseCore(exprParts, root, stepper) {
var result = stepper(root, exprParts.shift(), exprParts);
if (false === result) {
return
}
parseCore(exprParts, result, stepper)
};
iteratorUtils.each(exprs, function(_, x) {
parseCore(x.split("."), root, stepper)
})
};
var hash = {};
if (_expand || _select) {
if (_expand) {
parseTree(makeArray(_expand), hash, function(node, key, path) {
node[key] = node[key] || {};
if (!path.length) {
return false
}
return node[key]
})
}
if (_select) {
parseTree(grep(makeArray(_select), hasDot), hash, function(node, key, path) {
if (!path.length) {
node[key] = node[key] || [];
node[key].push(key);
return false
}
return node[key] = node[key] || {}
})
}
return format(hash)
}
};
if (_oDataVersion < 4) {
return generatorV2()
}
return generatorV4()
};
var tuple = {
$select: generateSelect() || void 0,
$expand: generateExpand() || void 0
};
return tuple
};
var requestData = function() {
var result = {};
if (!_countQuery) {
if (_sorting.length) {
result.$orderby = _sorting.join(",")
}
if (_skip) {
result.$skip = _skip
}
if (void 0 !== _take) {
result.$top = _take
}
var tuple = generateSelectExpand();
result.$select = tuple.$select;
result.$expand = tuple.$expand
}
if (_criteria.length) {
var criteria = _criteria.length < 2 ? _criteria[0] : _criteria,
fieldTypes = queryOptions && queryOptions.fieldTypes;
result.$filter = compileCriteria(criteria, _oDataVersion, fieldTypes)
}
if (_countQuery) {
result.$top = 0
}
if (queryOptions.requireTotalCount || _countQuery) {
if (4 !== _oDataVersion) {
result.$inlinecount = "allpages"
} else {
result.$count = "true"
}
}
return result
};
function tryLiftSelect(tasks) {
var selectIndex = -1;
for (var i = 0; i < tasks.length; i++) {
if ("select" === tasks[i].name) {
selectIndex = i;
break
}
}
if (selectIndex < 0 || !isFunction(tasks[selectIndex].args[0])) {
return
}
var nextTask = tasks[1 + selectIndex];
if (!nextTask || "slice" !== nextTask.name) {
return
}
tasks[1 + selectIndex] = tasks[selectIndex];
tasks[selectIndex] = nextTask
}
return {
optimize: function(tasks) {
tryLiftSelect(tasks)
},
exec: function(url) {
return odataUtils.sendRequest(_oDataVersion, {
url: url,
params: extend(requestData(), queryOptions && queryOptions.params)
}, {
beforeSend: queryOptions.beforeSend,
jsonp: queryOptions.jsonp,
withCredentials: queryOptions.withCredentials,
countOnly: _countQuery,
deserializeDates: queryOptions.deserializeDates,
fieldTypes: queryOptions.fieldTypes,
isPaged: isFinite(_take)
})
},
multiSort: function(args) {
var rules;
if (hasSlice()) {
return false
}
for (var i = 0; i < args.length; i++) {
var rule, getter = args[i][0],
desc = !!args[i][1];
if ("string" !== typeof getter) {
return false
}
rule = serializePropName(getter);
if (desc) {
rule += " desc"
}
rules = rules || [];
rules.push(rule)
}
_sorting = rules
},
slice: function(skipCount, takeCount) {
if (hasSlice()) {
return false
}
_skip = skipCount;
_take = takeCount
},
filter: function(criterion) {
if (hasSlice()) {
return false
}
if (!Array.isArray(criterion)) {
criterion = [].slice.call(arguments)
}
if (hasFunction(criterion)) {
return false
}
if (_criteria.length) {
_criteria.push("and")
}
_criteria.push(criterion)
},
select: function(expr) {
if (_select || isFunction(expr)) {
return false
}
if (!Array.isArray(expr)) {
expr = [].slice.call(arguments)
}
_select = expr
},
count: function() {
_countQuery = true
}
}
};
queryAdapters.odata = createODataQueryAdapter;
exports.odata = createODataQueryAdapter;