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smartfilter.js
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"use strict";
const executionEngine = require('node-database-executor');
const utils = require('axiom-utils');
const async = require('async');
function smartfilter() {
let cReq = null;
let debug = false;
let lastError = null;
let forceOrderBy = false;
let processRequestRunning = false;
const instance = this;
const InstanceMap = {}
const myRequestStack = [];
function flushCache(instance, cb) { //
if (InstanceMap[instance].shouldCacheResults) {
executionEngine.flushCache(InstanceMap[instance].dbConfig, InstanceMap[instance].tableName);
}
executePivots(instance, 0, null, cb);
}
/**
* [getData description]
* @param {Number | Function} from [description]
* @param {Number | Function} to [description]
* @param {Function} cb [description]
* @param {String} field [description]
* @param {String} instance [description]
* @param {Array} sort expects keys field and/or order (refer node-db-connectors for syntax)
*/
function getData(from, to, cb, field, instance, sortBy) {
if (typeof from === 'function') {
cb = from;
to = undefined;
from = undefined;
} else if (typeof to === 'function') {
cb = to;
to = from;
from = 0;
}
const filterCondition = createPivotWhereCondition(-1, instance);
const query = {};
if (filterCondition !== undefined) {
query.filter = filterCondition;
}
if (from != undefined) {
query.limit = from + "," + to;
}
query.select = [];
if (field != undefined) {
if (typeof field == 'string') {
field = [field];
}
for (let i = 0; i < field.length; i++) {
//console.log(field)
if (typeof field[i] == 'string') {
field[i] = { key: field[i] };
}
if (field[i].alias == undefined) {
field[i].alias = field[i].key;
}
query.select.push({
field: field[i].key,
alias: field[i].alias
});
}
}
if (sortBy != undefined && Array.isArray(sortBy) && sortBy.length > 0) {
query.sortby = sortBy
}
const tableName = InstanceMap[instance].tableName;
const dbConfig = InstanceMap[instance].dbConfig;
const shouldCacheResults = InstanceMap[instance].shouldCacheResults;
createToExternalDatabasePivot(dbConfig, tableName, shouldCacheResults, query, function(data, isCachedResult) {
cb(data);
data = null;
});
}
function getCount(instance, cb) {
const filterCondition = createPivotWhereCondition(-1, instance);
// console.log([filterCondition]);
const query = {};
if (filterCondition !== undefined) {
query.filter = filterCondition;
}
query.select = [];
query.select.push({
field: 'count(1)',
alias: 'count',
encloseField: false
});
const tableName = InstanceMap[instance].tableName;
const dbConfig = InstanceMap[instance].dbConfig;
const shouldCacheResults = InstanceMap[instance].shouldCacheResults;
createToExternalDatabasePivot(dbConfig, tableName, shouldCacheResults, query, function(data, isCachedResult) {
cb(data);
data = null;
});
}
function pivot(instance, reference, dimensions, measures, allResults, sortBy, cb) {
if (!InstanceMap.hasOwnProperty(instance)) {
cb({ type: 'error', error: { message: 'InstanceRefernce not found' } })
} else {
deletePivot(instance, reference);
InstanceMap[instance].pivotMap.push({
reference: reference,
dimensions: dimensions,
measures: measures,
sortBy: sortBy
});
if (allResults == true) {
executePivots(instance, 0, null, cb);
} else {
executePivots(instance, 0, null, cb, reference);
}
}
}
function removePivot(instance, reference, cb) {
if (InstanceMap.hasOwnProperty(instance)) {
deletePivot(instance, reference);
}
cb("Pivot Removed");
}
function deletePivot(instance, reference) {
if (InstanceMap.hasOwnProperty(instance)) {
InstanceMap[instance].pivotListResult[reference] ? delete InstanceMap[instance].pivotListResult[reference] : "";
InstanceMap[instance].pivotListResultKey[reference] ? delete InstanceMap[instance].pivotListResultKey[reference] : "";
InstanceMap[instance].pivotListFilters[reference] ? delete InstanceMap[instance].pivotListFilters[reference] : "";
for (let i = 0; i < InstanceMap[instance].pivotMap.length > 0 && InstanceMap[instance].pivotMap.length; i++) {
if (InstanceMap[instance].pivotMap[i].reference == reference) {
InstanceMap[instance].pivotMap.splice(i, 1);
i--;
}
}
}
}
function executePivots(instance, addReduceNone, dimension, cb, reference) {
if (debug)
console.log('executePivots', dimension);
const indexes = InstanceMap[instance].pivotMap.map((d,i)=> i);
async.eachLimit(indexes,5,function(item, callback){
getAllPivotResults(item, addReduceNone, dimension, reference, instance, function(data) {
if (debug)
if(data)
console.log('executePivots', dimension, Object.keys(data.data));
// console.log("******** PivotMap *********", JSON.stringify(InstanceMap[instance].pivotMap))
// console.log("******** filteredDimension *********", JSON.stringify(InstanceMap[instance].filteredDimension))
// console.log("******** pivotListResult *********", JSON.stringify(InstanceMap[instance].pivotListResult))
// console.log("******** pivotListResultKey *********", JSON.stringify(InstanceMap[instance].pivotListResultKey))
// console.log("******** pivotListFilters *********", JSON.stringify(InstanceMap[instance].pivotListFilters))
// cb(data);
// data = null;
callback(null, null);
});
}, function(err, resData){
getAllPivotResults(InstanceMap[instance].pivotMap.length, addReduceNone, dimension, reference, instance, function(data) {
if (debug)
if(data)
console.log('executePivots', dimension, Object.keys(data.data));
// console.log("******** PivotMap *********", JSON.stringify(InstanceMap[instance].pivotMap))
// console.log("******** filteredDimension *********", JSON.stringify(InstanceMap[instance].filteredDimension))
// console.log("******** pivotListResult *********", JSON.stringify(InstanceMap[instance].pivotListResult))
// console.log("******** pivotListResultKey *********", JSON.stringify(InstanceMap[instance].pivotListResultKey))
// console.log("******** pivotListFilters *********", JSON.stringify(InstanceMap[instance].pivotListFilters))
cb(data);
data = null;
});
})
}
function prepareQueryJSON(instance, index, dimension) {
const filterCondition = createPivotWhereCondition(index, instance);
if (InstanceMap[instance].oldFilterConditions.indexOf(JSON.stringify(filterCondition)) == -1)
InstanceMap[instance].oldFilterConditions.push(JSON.stringify(filterCondition));
//var i = index;
//var startTime = new Date().getTime();
if (debug)
console.log('Querying for for dimension \'' + InstanceMap[instance].pivotMap[index].dimensions + '\'');
const query = {};
query.select = [];
for (let n = 0; n < InstanceMap[instance].pivotMap[index].dimensions.length; n++) {
if (typeof InstanceMap[instance].pivotMap[index].dimensions[n] === "string") {
if (InstanceMap[instance].pivotMap[index].dimensions[n] !== "") {
query.select.push({
field: InstanceMap[instance].pivotMap[index].dimensions[n],
alias: InstanceMap[instance].pivotMap[index].dimensions[n]
});
}
} else if (Array.isArray(InstanceMap[instance].pivotMap[index].dimensions[n].values)) {
const caseStatement = {
field: InstanceMap[instance].pivotMap[index].dimensions[n].values[0].key,
expression: {
cases: [],
'default': {
value: 'unknown'
}
}
};
if (InstanceMap[instance].pivotMap[index].dimensions[n].alias != null)
caseStatement.alias = InstanceMap[instance].pivotMap[index].dimensions[n].alias;
if (InstanceMap[instance].pivotMap[index].dimensions[n]['default'] != null)
caseStatement.expression['default'].value = '"' + InstanceMap[instance].pivotMap[index].dimensions[n]['default'] + '"';
for (var i = 0; i < InstanceMap[instance].pivotMap[index].dimensions[n].values.length; i++) {
caseStatement.expression.cases.push({
operator: InstanceMap[instance].pivotMap[index].dimensions[n].values[i].type,
value: InstanceMap[instance].pivotMap[index].dimensions[n].values[i].value,
out: {
value: '"' + InstanceMap[instance].pivotMap[index].dimensions[n].values[i].display + '"'
}
});
}
query.select.push(caseStatement);
} else {
if (InstanceMap[instance].pivotMap[index].dimensions[n].alias == null)
InstanceMap[instance].pivotMap[index].dimensions[n].alias = InstanceMap[instance].pivotMap[index].dimensions[n].key;
query.select.push({
field: InstanceMap[instance].pivotMap[index].dimensions[n].key,
alias: InstanceMap[instance].pivotMap[index].dimensions[n].alias,
encloseField: InstanceMap[instance].pivotMap[index].dimensions[n].encloseField
});
}
}
const measures = InstanceMap[instance].pivotMap[index].measures;
for (let j = 0; j < measures.length; j++) {
if (measures[j].alias === undefined)
measures[j].alias = measures[j].aggregation + '(' + measures[j].key + ')';
if (measures[j].key !== "")
query.select.push({
field: measures[j].key,
aggregation: measures[j].aggregation,
alias: measures[j].alias,
encloseField: measures[j].encloseField
});
else
query.select.push({
field: 'pk_ID',
aggregation: measures[j].aggregation,
alias: measures[j].alias
});
}
query.groupby = [];
for (let n = 0; n < InstanceMap[instance].pivotMap[index].dimensions.length; n++) {
if (typeof InstanceMap[instance].pivotMap[index].dimensions[n] === "string") {
if (InstanceMap[instance].pivotMap[index].dimensions[n] !== "") {
query.groupby.push({
field: InstanceMap[instance].pivotMap[index].dimensions[n]
});
}
} else if (Array.isArray(InstanceMap[instance].pivotMap[index].dimensions[n].values)) {
const caseStatement = {
field: InstanceMap[instance].pivotMap[index].dimensions[n].values[0].key,
expression: {
cases: [],
'default': {
value: 'unknown'
}
}
};
if (InstanceMap[instance].pivotMap[index].dimensions[n]['default'] != null)
caseStatement.expression['default'].value = '"' + InstanceMap[instance].pivotMap[index].dimensions[n]['default'] + '"';
for (let i = 0; i < InstanceMap[instance].pivotMap[index].dimensions[n].values.length; i++) {
caseStatement.expression.cases.push({
operator: InstanceMap[instance].pivotMap[index].dimensions[n].values[i].type,
value: InstanceMap[instance].pivotMap[index].dimensions[n].values[i].value,
out: {
value: '"' + InstanceMap[instance].pivotMap[index].dimensions[n].values[i].display + '"'
}
});
}
query.groupby.push(caseStatement);
} else {
query.groupby.push({
field: InstanceMap[instance].pivotMap[index].dimensions[n].key,
encloseField: InstanceMap[instance].pivotMap[index].dimensions[n].encloseField
});
}
}
if (forceOrderBy == true) {
query.sortby = [];
for (let n = 0; n < InstanceMap[instance].pivotMap[index].dimensions.length; n++) {
if (typeof InstanceMap[instance].pivotMap[index].dimensions[n] === "string") {
if (InstanceMap[instance].pivotMap[index].dimensions[n] !== "") {
query.sortby.push({
field: InstanceMap[instance].pivotMap[index].dimensions[n],
order: 'asc'
});
}
} else if (Array.isArray(InstanceMap[instance].pivotMap[index].dimensions[n].values)) {
query.sortby.push({
field: InstanceMap[instance].pivotMap[index].dimensions[n].alias,
order: 'asc'
});
} else {
query.sortby.push({
field: InstanceMap[instance].pivotMap[index].dimensions[n].key,
encloseField: InstanceMap[instance].pivotMap[index].dimensions[n].encloseField
});
}
}
}
const sortBy = InstanceMap[instance].pivotMap[index].sortBy;
if (sortBy != undefined && sortBy.length > 0) {
query.sortby = query.hasOwnProperty('sortby') ? query.sortby : [];
if (typeof InstanceMap[instance].pivotMap[index].sortBy === "string") {
InstanceMap[instance].pivotMap[index].sortBy = InstanceMap[instance].pivotMap[index].sortBy.split(",")
}
if (Array.isArray(InstanceMap[instance].pivotMap[index].sortBy)) {
InstanceMap[instance].pivotMap[index].sortBy.forEach(function(e, i) {
query.sortby.push({
field: typeof e == "string" ? e : e.field,
order: typeof e == "string" ? 'asc' : e.order,
encloseField: e == "string" ? undefined : e.encloseField
})
});
}
}
if (filterCondition !== undefined) {
query.filter = filterCondition;
}
return {
query: query,
measures: measures
};
}
function getAllPivotResults(index, addReduceNone, dimension, reference, instance, cb) {
//console.log("getAllPivotResults index", index, "total length",InstanceMap[instance].pivotMap.length)
if (index < InstanceMap[instance].pivotMap.length) {
if (InstanceMap[instance].pivotMap[index].dimensions.length === 1 && (InstanceMap[instance].pivotMap[index].dimensions[0] === dimension || InstanceMap[instance].pivotMap[index].dimensions[0].key === dimension)) {
// getAllPivotResults(index + 1, addReduceNone, dimension, reference, instance, cb);
cb();
return;
}
if (reference != undefined && reference != InstanceMap[instance].pivotMap[index].reference) {
// getAllPivotResults(index + 1, addReduceNone, dimension, reference, instance, cb);
cb();
return;
}
const output = prepareQueryJSON(instance, index, dimension);
const query = output.query;
const measures = output.measures;
const i = index;
const startTime = new Date();
const tableName = InstanceMap[instance].tableName;
const dbConfig = InstanceMap[instance].dbConfig;
const shouldCacheResults = InstanceMap[instance].shouldCacheResults;
createToExternalDatabasePivot(dbConfig, tableName, shouldCacheResults, query, function(data, isCachedResult) {
if (debug) {
console.log(data.length + ' rows Returned for dimensions \'' + InstanceMap[instance].pivotMap[i].dimensions + '\' in ' + (new Date().getTime() - startTime) / 1000 + ' seconds from ' + (isCachedResult ? 'memory' : 'db') + '. addReduceNone: ' + addReduceNone);
}
//add to existing
if (InstanceMap[instance].smartDecision && addReduceNone === 1) {
for (let j = 0; j < data.length; j++) {
const pivotMapDimensionKey = [];
for (let n = 0; n < InstanceMap[instance].pivotMap[i].dimensions.length; n++) {
if (typeof InstanceMap[instance].pivotMap[index].dimensions[n] === "string") {
pivotMapDimensionKey.push(data[j][InstanceMap[instance].pivotMap[i].dimensions[n]]);
} else if (typeof InstanceMap[instance].pivotMap[index].dimensions[n].alias != undefined) {
pivotMapDimensionKey.push(data[j][InstanceMap[instance].pivotMap[i].dimensions[n].alias]);
} else {
pivotMapDimensionKey.push(data[j][InstanceMap[instance].pivotMap[i].dimensions[n].key]);
}
}
//var keyIndex = pivotListResultKey[pivotMap[i].dimensions.join("_$#$_")].indexOf(pivotMapDimensionKey.join("_$#$_"));
const keyIndex = InstanceMap[instance].pivotListResultKey[InstanceMap[instance].pivotMap[i].reference].indexOf(pivotMapDimensionKey.join("_$#$_"));
if (keyIndex === -1) {
InstanceMap[instance].pivotListResult[InstanceMap[instance].pivotMap[i].reference].push(data[j]);
InstanceMap[instance].pivotListResultKey[InstanceMap[instance].pivotMap[i].reference].push(pivotMapDimensionKey.join("_$#$_"));
InstanceMap[instance].pivotListFilters[InstanceMap[instance].pivotMap[i].reference].push(query.filter);
} else {
for (let k = 0; k < measures.length; k++) {
InstanceMap[instance].pivotListResult[InstanceMap[instance].pivotMap[i].reference][keyIndex][measures[k].alias] += data[j][measures[k].alias];
}
}
}
}
//remove from existing
else if (InstanceMap[instance].smartDecision && addReduceNone === 2) {
for (let j = 0; j < data.length; j++) {
const pivotMapDimensionKey = [];
for (let n = 0; n < InstanceMap[instance].pivotMap[i].dimensions.length; n++) {
if (typeof InstanceMap[instance].pivotMap[index].dimensions[n] === "string") {
pivotMapDimensionKey.push(data[j][InstanceMap[instance].pivotMap[i].dimensions[n]]);
} else if (typeof InstanceMap[instance].pivotMap[index].dimensions[n].alias != undefined) {
pivotMapDimensionKey.push(data[j][InstanceMap[instance].pivotMap[i].dimensions[n].alias]);
} else {
pivotMapDimensionKey.push(data[j][InstanceMap[instance].pivotMap[i].dimensions[n].key]);
}
}
const keyIndex = InstanceMap[instance].pivotListResultKey[InstanceMap[instance].pivotMap[i].reference].indexOf(pivotMapDimensionKey.join("_$#$_"));
if (keyIndex === -1) {
// not possible
throw ("node-cross-filter, reduce part could not found existing row.");
} else {
if (InstanceMap[instance].pivotMap[i].dimensions.length === 1 && InstanceMap[instance].pivotMap[i].dimensions[0] === dimension) {
InstanceMap[instance].pivotListResult[InstanceMap[instance].pivotMap[i].reference].splice(keyIndex, 1);
InstanceMap[instance].pivotListResultKey[InstanceMap[instance].pivotMap[i].reference].splice(keyIndex, 1);
InstanceMap[instance].pivotListFilters[InstanceMap[instance].pivotMap[i].reference].splice(keyIndex, 1);
} else {
for (let k = 0; k < measures.length; k++) {
InstanceMap[instance].pivotListResult[InstanceMap[instance].pivotMap[i].reference][keyIndex][measures[k].alias] -= data[j][measures[k].alias];
}
}
}
}
}
//replace entire result
else {
// if (InstanceMap[instance].smartDecision) {
InstanceMap[instance].pivotListResult[InstanceMap[instance].pivotMap[i].reference] = data;
InstanceMap[instance].pivotListFilters[InstanceMap[instance].pivotMap[i].reference] = [query.filter];
// InstanceMap[instance].pivotListResultKey[InstanceMap[instance].pivotMap[i].reference] = [];
// for (var j = 0; j < data.length; j++) {
// var pivotMapDimensionKey = [];
// for (var n = 0; n < InstanceMap[instance].pivotMap[i].dimensions.length; n++) {
// if (typeof InstanceMap[instance].pivotMap[index].dimensions[n] === "string") {
// pivotMapDimensionKey.push(data[j][InstanceMap[instance].pivotMap[i].dimensions[n]]);
// } else if (typeof InstanceMap[instance].pivotMap[index].dimensions[n].alias != undefined) {
// pivotMapDimensionKey.push(data[j][InstanceMap[instance].pivotMap[i].dimensions[n].alias]);
// } else {
// pivotMapDimensionKey.push(data[j][InstanceMap[instance].pivotMap[i].dimensions[n].key]);
// }
// }
// InstanceMap[instance].pivotListResultKey[InstanceMap[instance].pivotMap[i].reference].push(pivotMapDimensionKey.join("_$#$_"));
// }
// }
}
setTimeout(function() {
// getAllPivotResults(index + 1, addReduceNone, dimension, reference, instance, cb);
cb();
}, 1);
});
} else {
const allFilters = [].concat(InstanceMap[instance].staticFilters);
const keys = Object.keys(InstanceMap[instance].filteredDimension);
for (let i = 0; i < keys.length; i++) {
allFilters.push(InstanceMap[instance].filteredDimension[keys[i]]);
}
if (reference == undefined) {
cb({
data: InstanceMap[instance].pivotListResult,
filters: allFilters
}); //, appliedFilters: pivotListFilters
} else {
let json = {
data: {},
appliedFilters: {},
filters: []
};
json.data[reference] = InstanceMap[instance].pivotListResult[reference];
//json.appliedFilters[reference] = pivotListFilters[reference];
json.filters = allFilters;
cb(json);
json = null;
}
if(!InstanceMap[instance].shouldCacheResults){
if(reference == undefined){
// InstanceMap[instance].pivotListResult = [];
// InstanceMap[instance].pivotListResult = null;
}
else{
InstanceMap[instance].pivotListResult[reference] = [];
InstanceMap[instance].pivotListResult[reference] = null;
delete InstanceMap[instance].pivotListResult[reference];
}
}
InstanceMap[instance].pivotListResult
}
}
function createPivotWhereCondition(index, instance) {
//console.log(InstanceMap[instance], instance, "create pivot condition---------------")
const filterList = Object.keys(InstanceMap[instance].filteredDimension);
const filterCondition = {
and: []
};
const filtersTobeApplied = [].concat(InstanceMap[instance].staticFilters);
for (let i = 0; i < filterList.length; i++) {
if (InstanceMap[instance].filteredDimension[filterList[i]] != null && InstanceMap[instance].filteredDimension[filterList[i]].filters != null && InstanceMap[instance].filteredDimension[filterList[i]].filters.length > 0 && (index == -1 || (InstanceMap[instance].pivotMap[index] && InstanceMap[instance].pivotMap[index].dimensions.length === 1 && (InstanceMap[instance].pivotMap[index].dimensions[0] === filterList[i] || InstanceMap[instance].pivotMap[index].dimensions[0].key === filterList[i])) == false)) {
filtersTobeApplied.push({
filterType: InstanceMap[instance].filteredDimension[filterList[i]].filterType,
field: filterList[i],
filters: InstanceMap[instance].filteredDimension[filterList[i]].filters,
encloseField: InstanceMap[instance].filteredDimension[filterList[i]].encloseField
});
}
}
if (filtersTobeApplied.length > 0) {
for (let i = 0; i < filtersTobeApplied.length; i++) {
if (filtersTobeApplied[i].filterType === 'in') {
filterCondition.and.push({
field: filtersTobeApplied[i].field,
operator: 'eq',
value: filtersTobeApplied[i].filters,
encloseField: filtersTobeApplied[i].encloseField
});
} else if (filtersTobeApplied[i].filterType === 'range') {
filterCondition.and.push({
field: filtersTobeApplied[i].field,
operator: 'gteq',
value: filtersTobeApplied[i].filters[0],
encloseField: filtersTobeApplied[i].encloseField
});
filterCondition.and.push({
field: filtersTobeApplied[i].field,
operator: 'lteq',
value: filtersTobeApplied[i].filters[1],
encloseField: filtersTobeApplied[i].encloseField
});
} else if (filtersTobeApplied[i].filterType === 'withinAll') {
for (let j = 0; j < filtersTobeApplied[i].filters.length; j++) {
const filterJSON = [];
filterJSON.push({
field: filtersTobeApplied[i].field,
operator: 'eq',
value: filtersTobeApplied[i].filters[j],
encloseField: filtersTobeApplied[i].encloseField
});
filterJSON.push({
field: filtersTobeApplied[i].field,
operator: 'match',
value: filtersTobeApplied[i].filters[j] + ',%',
encloseField: filtersTobeApplied[i].encloseField
});
filterJSON.push({
field: filtersTobeApplied[i].field,
operator: 'match',
value: '%,' + filtersTobeApplied[i].filters[j],
encloseField: filtersTobeApplied[i].encloseField
});
filterJSON.push({
field: filtersTobeApplied[i].field,
operator: 'match',
value: '%,' + filtersTobeApplied[i].filters[j] + ',%',
encloseField: filtersTobeApplied[i].encloseField
});
filterCondition.and.push(JSON.parse(JSON.stringify({
or: filterJSON
})));
filterJSON = null;
}
} else if (filtersTobeApplied[i].filterType === 'withinAny') {
filterCondition.and.push({
or: []
});
for (let j = 0; j < filtersTobeApplied[i].filters.length; j++) {
const filterJSON = [];
filterJSON.push({
field: filtersTobeApplied[i].field,
operator: 'eq',
value: filtersTobeApplied[i].filters[j],
encloseField: filtersTobeApplied[i].encloseField
});
filterJSON.push({
field: filtersTobeApplied[i].field,
operator: 'match',
value: filtersTobeApplied[i].filters[j] + ',%',
encloseField: filtersTobeApplied[i].encloseField
});
filterJSON.push({
field: filtersTobeApplied[i].field,
operator: 'match',
value: '%,' + filtersTobeApplied[i].filters[j],
encloseField: filtersTobeApplied[i].encloseField
});
filterJSON.push({
field: filtersTobeApplied[i].field,
operator: 'match',
value: '%,' + filtersTobeApplied[i].filters[j] + ',%',
encloseField: filtersTobeApplied[i].encloseField
});
filterCondition.and[filterCondition.and.length - 1].or.push({
or: filterJSON
});
}
} else if (filtersTobeApplied[i].encloseField == false) {
filterCondition.and.push({
field: filtersTobeApplied[i].field,
encloseField: false
});
}
}
}
if (filterCondition.and.length === 0)
return undefined;
if (debug)
console.log('actual filter: ', (filterCondition != undefined ? filterCondition.and : 'none'));
return filterCondition;
}
function createToExternalDatabasePivot(dbConfig, tableName, shouldCacheResults, query, cb) {
query.table = tableName;
if(dbConfig.schema){
query.schema = dbConfig.schema
}
executionEngine.executeQuery({
query: query,
dbConfig: dbConfig,
shouldCache: shouldCacheResults,
}, function(output) {
if (output.status == false) {
cReq.cb({ type: 'error', data: output });
lastError = output;
processRequestRunning = false;
processRequestStack();
} else {
cb(output.content, false);
}
});
}
function staticFilter(filters, instance, cb) {
InstanceMap[instance].staticFilters = filters;
for (let i = 0; i < InstanceMap[instance].staticFilters.length; i++) {
if (InstanceMap[instance].staticFilters[i].filters != undefined)
InstanceMap[instance].staticFilters[i].filters = InstanceMap[instance].staticFilters[i].filters.sort();
}
const keys = Object.keys(InstanceMap[instance].filteredDimension);
for (let i = 0; i < keys.length; i++) {
InstanceMap[instance].filteredDimension[keys[i]].filters = [];
}
executePivots(instance, 0, null, cb);
// flushCache(instance, cb);
}
function filter(filterType, dimension, values, instance,encloseField ,cb) {
if (values.length > 0 && typeof values != "string") {
//numeric type
if (isFinite(+values[0])) {
values = values.sort(function(a, b) {
return +a - +b;
});
}
//date type
else if ((new Date(values[0])).getTime() != 0) {
values = values.sort(function(a, b) {
return (new Date(a)).getTime() - (new Date(b)).getTime();
});
}
// string types
else if (typeof values[0] == 'string') {
values = values.sort();
}
//other types
else {
// do nothing
}
}
if (InstanceMap.hasOwnProperty(instance)) {
if (InstanceMap[instance].filteredDimension[dimension] === undefined) {
InstanceMap[instance].filteredDimension[dimension] = {};
InstanceMap[instance].filteredDimension[dimension].field = dimension;
InstanceMap[instance].filteredDimension[dimension].encloseField = encloseField;
InstanceMap[instance].filteredDimension[dimension].filters = [];
}
InstanceMap[instance].filteredDimension[dimension].filterType = filterType;
//values = values.sort();
if (InstanceMap[instance].smartDecision == true) {
const addReduceNone = optimizeFilters(instance, filterType, dimension, values)
} else {
InstanceMap[instance].filteredDimension[dimension].filters = values;
}
executePivots(instance, InstanceMap[instance].smartDecision ? addReduceNone : 0, dimension, function(data) {
InstanceMap[instance].filteredDimension[dimension].filters = values;
cb(data);
data = null;
});
} else {
cb({ type: 'error', message: 'instanceReference not found' })
}
}
function optimizeFilters(instance, filterType, dimension, values) {
const existingCondition = InstanceMap[instance].filteredDimension[dimension].filters;
InstanceMap[instance].filteredDimension[dimension].filters = values;
const addReduceNone = 0; //None = 0, Add = 1, Reduce = 2
const currCondition = createPivotWhereCondition(0, instance);
const filterConditionIndex = InstanceMap[instance].oldFilterConditions.indexOf(JSON.stringify(currCondition));
// console.log("################### test #################", InstanceMap[instance].oldFilterConditions, JSON.stringify(currCondition),JSON.stringify(existingCondition));
if (filterConditionIndex > -1) {
//dont change condition
//console.log("################### found #################");
} else {
var newCondition = [];
if (typeof values === "string") {
newCondition = [values];
} else if (filterType === 'range') {
if (values.length === 2) {
//left is same
if (existingCondition.length === 2 && existingCondition[0] === values[0]) {
// number type
if (isFinite(+existingCondition[1])) {
// added
if (+existingCondition[1] <= +values[1]) {
newCondition[0] = +existingCondition[1] + 0.0000000001;
newCondition[1] = +values[1];
addReduceNone = 1;
}
//reduced
else {
newCondition[0] = +values[1] + 0.0000000001;
newCondition[1] = +existingCondition[1];
addReduceNone = 2;
}
}
//date type
else if ((new Date(existingCondition[1])).getTime() != 0) {
// added
if (new Date(existingCondition[1]) <= new Date(values[1])) {
const dt = new Date(existingCondition[1]);
dt.setMinutes(dt.getMinutes() + dt.getTimezoneOffset());
if (dt.getSeconds() == 0) {
dt.setDate(dt.getDate() + 1);
newCondition[0] = dt.getFullYear() + '-' + (dt.getMonth() + 1) + '-' + dt.getDate();
} else {
dt.setMilliseconds(dt.getMilliseconds() + 1);
newCondition[0] = dt.getFullYear() + '-' + (dt.getMonth() + 1) + '-' + dt.getDate() + ' ' + dt.getHours() + ':' + dt.getMinutes() + ':' + dt.getSeconds();
}
newCondition[1] = values[1];
addReduceNone = 1;
}
//reduced
else {
const dt = new Date(values[1]);
dt.setMinutes(dt.getMinutes() + dt.getTimezoneOffset());
if (dt.getSeconds() == 0) {
dt.setDate(dt.getDate() + 1);
newCondition[0] = dt.getFullYear() + '-' + (dt.getMonth() + 1) + '-' + dt.getDate();
} else {
dt.setMilliseconds(dt.getMilliseconds() + 1);
newCondition[0] = dt.getFullYear() + '-' + (dt.getMonth() + 1) + '-' + dt.getDate() + ' ' + dt.getHours() + ':' + dt.getMinutes() + ':' + dt.getSeconds();
}
newCondition[1] = existingCondition[1];
//console.log(values, existingCondition, newCondition);
//process.exit(0);
addReduceNone = 2;
}
}
//other type
else {
newCondition[0] = values[0];
newCondition[1] = values[1];
}
}
//right is same
else if (existingCondition.length === 2 && existingCondition[1] === values[1]) {
//number type
if (isFinite(+existingCondition[0])) {
// added
if (+values[0] <= +existingCondition[0]) {
newCondition[0] = +values[0];
newCondition[1] = +existingCondition[0] - 0.0000000001;
addReduceNone = 1;
}
//reduced
else {
newCondition[0] = +existingCondition[0];
newCondition[1] = +values[0] - 0.0000000001;
addReduceNone = 2;
}
}
//date type
else if ((new Date(existingCondition[0])).getTime() != 0) {
if (new Date(values[0]) <= new Date(existingCondition[0])) {
newCondition[0] = values[0];
const dt = new Date(existingCondition[0]);
dt.setMinutes(dt.getMinutes() + dt.getTimezoneOffset());
if (dt.getSeconds() == 0) {
dt.setDate(dt.getDate() - 1);
newCondition[1] = dt.getFullYear() + '-' + (dt.getMonth() + 1) + '-' + dt.getDate();
} else {
dt.setMilliseconds(dt.getMilliseconds() - 1);
newCondition[1] = dt.getFullYear() + '-' + (dt.getMonth() + 1) + '-' + dt.getDate() + ' ' + dt.getHours() + ':' + dt.getMinutes() + ':' + dt.getSeconds();
}
addReduceNone = 1;
} else {
newCondition[0] = existingCondition[0];
const dt = new Date(values[0]);
dt.setMinutes(dt.getMinutes() + dt.getTimezoneOffset());
if (dt.getSeconds() == 0) {
dt.setDate(dt.getDate() - 1);
newCondition[1] = dt.getFullYear() + '-' + (dt.getMonth() + 1) + '-' + dt.getDate();
} else {
dt.setMilliseconds(dt.getMilliseconds() - 1);
newCondition[1] = dt.getFullYear() + '-' + (dt.getMonth() + 1) + '-' + dt.getDate() + ' ' + dt.getHours() + ':' + dt.getMinutes() + ':' + dt.getSeconds();
}
addReduceNone = 2;
}
}
//other type
else {
newCondition[0] = values[0];
newCondition[1] = values[1];
}
}
//nothing is same
else {
newCondition[0] = values[0];
newCondition[1] = values[1];
}
}
} else if (filterType === 'in') {
//first time filter
if (existingCondition.length === 0) {
newCondition = values;
addReduceNone = 0;
} else {
//most likely removed some values
if (existingCondition.length > values.length) {
//if existing/2 < new then try to alter condition else dont alter condition
if (existingCondition.length / 2 < values.length) {
//all new values should be part of existing values
let allNewValuesFound = true;
const existingFoundIndexes = [];
for (let i = 0; i < values.length && allNewValuesFound === true; i++) {
//current value is not part of existing condition
const existingIndex = existingCondition.indexOf(values[i]);
if (existingIndex === -1) {
allNewValuesFound = false;
} else {
//do nothing
existingFoundIndexes.push(existingIndex);
}
}
//actually new values are subset of old values
if (allNewValuesFound === true) {
for (let i = 0; i < existingCondition.length; i++) {
if (existingFoundIndexes.indexOf(i) === -1) {
newCondition.push(existingCondition[i]);
}
}
addReduceNone = 2;
} else {
newCondition = values;
addReduceNone = 0;
}
} else {
newCondition = values;
addReduceNone = 0;
}
}
//most likely added some values
else {
//all existing values should be part of new values
let allExistingValuesFound = true;
const newValuesFoundIndexes = [];
for (let i = 0; i < existingCondition.length && allExistingValuesFound === true; i++) {
//current value is not part of new condition
const newValueIndex = values.indexOf(existingCondition[i]);
if (newValueIndex === -1) {
allExistingValuesFound = false;
} else {
//do nothing
newValuesFoundIndexes.push(newValueIndex);
}
}
//actually old values are subset of new values
if (allExistingValuesFound === true) {
for (let i = 0; i < values.length; i++) {
if (newValuesFoundIndexes.indexOf(i) === -1) {
newCondition.push(values[i]);
}
}
addReduceNone = 1;
} else {
newCondition = values;
addReduceNone = 0;
}
}
}
} else {
newCondition = values;
addReduceNone = 0;
}
if (debug) {
console.log('old filter:', InstanceMap[instance].filteredDimension[dimension].filters);
console.log('original filter: ', values);
console.log('changed filter: ', newCondition);
console.log('merge type: ', (addReduceNone === 0 ? 'replace' : (addReduceNone === 1 ? 'Add' : 'Reduce')));
}
InstanceMap[instance].filteredDimension[dimension].filters = newCondition;
if (debug)
console.log(['existingCondition', existingCondition, values, newCondition, addReduceNone]);
}
return addReduceNone;
}
function connect(tblName, config, smartDecision, shouldCacheResults, cb) {
const ref = utils.uuid();
InstanceMap[ref] = {
staticFilters: [],
filteredDimension: {},
pivotListResult: {},
pivotListFilters: {},
pivotListResultKey: {},
oldFilterConditions: [],
smartDecision: smartDecision,
shouldCacheResults: shouldCacheResults,
tableName: tblName,
dbConfig: config,
pivotMap: [],
}
cb({ status: true, content: ref })
}
function processRequestStack() {
cReq = null;
if (myRequestStack.length > 0) {
processRequestRunning = true;
cReq = myRequestStack.shift();
if (debug)
console.log('processing request:', cReq);
if (cReq.type.toLowerCase() === "connect") {
connect(cReq.data.tableName, cReq.data.dbConfig, cReq.makeSmartDecision, cReq.shouldCacheResults, function(data) {
cReq.cb(data)
processRequestRunning = false;
processRequestStack();
});
} else if (cReq.type.toLowerCase() === "filter") {
filter(cReq.data.filterType, cReq.data.field, cReq.data.filters, cReq.instanceReference, cReq.data.encloseField,function(data) {
data.type = 'data';
if (cReq.data.reference) {
data.reference = cReq.data.reference;
}
cReq.cb(data);
processRequestRunning = false;
processRequestStack();
});
} else if (cReq.type.toLowerCase() === "staticfilter") {
staticFilter(cReq.data, cReq.instanceReference, function(data) {
data.type = 'data';
if (cReq.data.reference) {
data.reference = cReq.data.reference;
}
cReq.cb(data);
processRequestRunning = false;
processRequestStack();
});
} else if (cReq.type.toLowerCase() === "data") {
if (cReq.data == undefined) {
getData(undefined, undefined, function(data) {
cReq.cb({
type: 'records',
data: data
});
processRequestRunning = false;
processRequestStack();
}, undefined, cReq.instanceReference, cReq.data.sortBy);
} else if (cReq.data.from == undefined) {
getData(undefined, undefined, function(data) {
cReq.cb({
type: 'records',
data: data
});
processRequestRunning = false;
processRequestStack();
}, cReq.data.field, cReq.instanceReference, cReq.data.sortBy);
} else if (cReq.data.to == undefined) {
getData(cReq.data.from, undefined, function(data) {