openaire-library/searchPages/searchUtils/searchPage.component.ts

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import {Component, Input, ViewChild, Output, EventEmitter,ElementRef} from '@angular/core';
import {Observable} from 'rxjs/Observable';
import {Location} from '@angular/common';
import { Router} from '@angular/router';
import { Filter, Value} from './searchHelperClasses.class';
import {SearchResult} from '../../utils/entities/searchResult';
import {SearchFields, FieldDetails} from '../../utils/properties/searchFields';
import {SearchUtilsClass} from './searchUtils.class';
import {DOI, StringUtils} from '../../utils/string-utils.class';
import {ModalLoading} from '../../utils/modal/loading.component';
import { Meta} from '../../../angular2-meta';
import{SearchFilterComponent} from './searchFilter.component';
import {SearchFilterModalComponent} from './searchFilterModal.component';
import {OpenaireProperties} from '../../utils/properties/openaireProperties';
import { ErrorCodes} from '../../utils/properties/openaireProperties';
import {PiwikService} from '../../utils/piwik/piwik.service';
@Component({
selector: 'search-page',
templateUrl: 'searchPage.component.html'
})
export class SearchPageComponent {
@Input() pageTitle = "";
@Input() formPlaceholderText = "Type Keywords...";
@Input() results = [];
@Input() filters = [];
@Input() type:string = "";
@Input() entityType: string = "";
@Input() searchUtils:SearchUtilsClass = new SearchUtilsClass();
@Output() queryChange = new EventEmitter();
@Input() baseUrl:string = '';
@Input() showResultCount:boolean = true;
@Input() showRefine:boolean = true;
@Input() refineFields = [];
@Input() csvParams: string;
@Input() csvPath: string;
@Input() advancedSearchLink: string = "";
@Input() tableViewLink: string;
@Input() disableForms: boolean = false;
@Input() loadPaging: boolean = true;
@Input() oldTotalResults: number = 0;
@Input() tableView: boolean = false;
@Input() searchFormClass: string = "searchForm";
@ViewChild (ModalLoading) loading : ModalLoading ;
public fieldIdsMap;//: { [key:string]:{ name:string, operator:string, type:string, indexField:string, equalityOperator:string }};
private searchFieldsHelper:SearchFields = new SearchFields();
private queryParameters: Map<string, string> = new Map<string,string>();
private baseURLWithParameters:string = '';
private sub: any; piwiksub: any;
public countFilters= 0;
public parameterNames:string[] =[];
public parameterValues:string[] =[];
public showUnknownFilters:boolean = false; // when a filter exists in query but has no results, so no filters returned from the query
//@ViewChild (SearchFilterModalComponent) searchFilterModal : SearchFilterModalComponent ;
public currentFilter: Filter;
constructor (private location: Location , private _meta: Meta,private element: ElementRef,private _piwikService:PiwikService, private router: Router) {
}
ngOnInit() {
if (typeof document !== 'undefined') {
this.element.nativeElement.scrollIntoView();
}
// this.updateBaseUrlWithParameters(this.filters);
this.updateTitle(this.pageTitle);
this.updateDescription("Openaire, search, repositories, open access, type, content provider, funder, project, " + this.type + "," +this.pageTitle);
if(typeof window !== 'undefined') {
this.updateUrl(OpenaireProperties.getBaseLink()+location.pathname);
}
if(typeof document !== 'undefined' && OpenaireProperties.isPiwikTrackEnabled()){
this.piwiksub = this._piwikService.trackView(this.pageTitle).subscribe();
}
}
ngAfterViewChecked(){
}
ngOnDestroy() {
if(this.piwiksub){
this.piwiksub.unsubscribe();
}
}
toggleModal($event) {
this.currentFilter = $event.value;
//this.searchFilterModal.open();
}
updateDescription(description:string){
this._meta.updateMeta("description", description);
this._meta.updateProperty("og:description", description);
}
updateTitle(title:string){
var _prefix ="OpenAIRE | ";
var _title = _prefix + ((title.length> 50 ) ?title.substring(0,50):title);
this._meta.setTitle(_title );
this._meta.updateProperty("og:title",_title);
}
updateUrl(url:string){
this._meta.updateProperty("og:url", url);
}
public getQueryParametersFromUrl(params){
// var parameters = "";
var allFqs = "";
this.queryParameters = new Map<string,string>();
for(var i=0; i< this.refineFields.length ; i++){
var filterId = this.refineFields[i];
if(params[filterId] != undefined) {
this.queryParameters.set(filterId, StringUtils.URIDecode(params[filterId]));
let values = (StringUtils.URIDecode(this.queryParameters.get(filterId))).split(/,(?=(?:[^\"]*\"[^\"]*\")*[^\"]*$)/,-1);
var countvalues = 0;
var fq = "";
for(let value of values) {
countvalues++;
var paramId = this.fieldIdsMap[filterId].param;
// parameters+='&' + paramId+ '='+ value;//+"&" + this.fieldIdsMap[paramId].operator + "="+((countvalues == 1)?"and":"or");
fq+=(fq.length > 0 ? " " + "or" + " ":"" ) + filterId +" exact " +StringUtils.URIEncode(value);
}
if(countvalues > 0){
fq="&fq="+fq;
}
allFqs += fq;
}
}
var keyword = params['keyword'];
var doiQuery = "";
var keywordQuery = "";
if((keyword && keyword.length > 0)){
if((this.type == 'publications' ||this.type == 'research data')){
var DOIs:string[] = DOI.getDOIsFromString(keyword);
var doisParams = "";
for(var i =0 ;i < DOIs.length; i++){
doisParams+=(doisParams.length > 0?"&":"")+'doi="'+ DOIs[i]+'"';
}
if(doisParams.length > 0){
doiQuery += "&"+doisParams;
}else {
keywordQuery += "&q="+StringUtils.URIEncode(keyword);
}
}else{
keywordQuery += "&q="+StringUtils.URIEncode(keyword);
}
}
return (doiQuery.length > 0 ? doiQuery:keywordQuery) + allFqs;
}
public getIndexQueryParametersFromUrl(params){
// var parameters = "";
var allFqs = "";
for(var i=0; i< this.refineFields.length ; i++){
var filterId = this.refineFields[i];
var fq = "";
if(params[filterId] != undefined) {
this.queryParameters.set(filterId,decodeURIComponent(params[filterId]));
let values = (decodeURIComponent(this.queryParameters.get(filterId))).split(/,(?=(?:[^\"]*\"[^\"]*\")*[^\"]*$)/,-1);
var countvalues = 0
for(let value of values) {
countvalues++;
// parameters+= ((countvalues == 1)?" and (":" or ")+ filterId+ '='+ value;
fq+=(fq.length > 0 ? " " + "or" + " ":"" ) + filterId + " exact " + value;//StringUtils.quote(value);
}
// parameters+= " ) ";
if(countvalues > 0){
fq="&fq="+fq;
}
allFqs += fq;
}
}
var keyword = params['keyword'];
var doiQuery = "";
var keywordQuery = "";
if((keyword && keyword.length > 0)){
if((this.type == 'publications' ||this.type == 'research data')){
var DOIs:string[] = DOI.getDOIsFromString(keyword);
var doisParams = "";
for(var i =0 ;i < DOIs.length; i++){
doisParams+=(doisParams.length > 0?"&":"")+'doi="'+ DOIs[i]+'"';
}
if(doisParams.length > 0){
doiQuery += "&"+doisParams;
}
}else{
keywordQuery += "and ("+StringUtils.quote(StringUtils.URIEncode(keyword)) +")";
}
}
return (doiQuery.length > 0 ? doiQuery:keywordQuery) + allFqs;
}
/*
* Mark as check the new filters that are selected, when you get them from search
*/
public checkSelectedFilters(filters:Filter[]){
this.filters = filters;
for(var i=0; i< filters.length ; i++){
var filter:Filter = filters[i];
filter.countSelectedValues = 0;
if(this.queryParameters.get(filter.filterId) != undefined) {
let values = (decodeURIComponent(this.queryParameters.get(filter.filterId))).split(/,(?=(?:[^\"]*\"[^\"]*\")*[^\"]*$)/,-1);
for(let filterValue of filter.values) {
if(values.indexOf(StringUtils.quote(filterValue.id)) > -1) {
filterValue.selected = true;
filter.countSelectedValues++;
}else{
filterValue.selected = false;
}
}
}else{
for(let filterValue of filter.values) {
filterValue.selected = false;
}
}
}
this.filterFilterValues(this.filters);
return filters;
}
/*
* For Funder filters - if funder selected
*/
public filterFilterValues(filters:Filter[]){
var funders = [];
var funder_prefix = [];
for(var i=0; i< filters.length ; i++){
var filter:Filter = filters[i];
// console.log(filter.filterId);
if(filter.filterId.indexOf("funder")!=-1 && this.queryParameters.get(filter.filterId) != undefined) {
let funders = (decodeURIComponent(this.queryParameters.get(filter.filterId))).split(/,(?=(?:[^\"]*\"[^\"]*\")*[^\"]*$)/,-1);
for(let funder of funders) {
console.log(funder);
funder_prefix.push(StringUtils.unquote(funder).split("____")[0]);
}
// console.log(funder_prefix );
}else if(filter.filterId.indexOf("funding")!=-1){
// console.log(" funding: "+filter.filterId );
var filteredValues = []
for(let filterValue of filter.values) {
var value_prefix = filterValue.id.split("____")[0];
// console.log("Value prefix: "+value_prefix );
if(funder_prefix.indexOf(value_prefix)!=-1){
// console.log("here" + value_prefix);
filteredValues.push(filterValue);
}
}
console.log("From " +filter.values.length+ "to "+filteredValues.length);
if(filteredValues.length > 0){
filter.values = filteredValues;
}
}
}
return filters;
}
/*
* Update the url with proper parameters. This is used as base url in Paging Component
*/
public updateBaseUrlWithParameters(filters:Filter[]){
this.baseURLWithParameters = this.baseUrl + this.createUrlParameters(filters,false);
}
/*
*Get The filters and create url parameters
*/
private createUrlParameters(filters:Filter[], includePage:boolean){
var allLimits="";//location.search.slice(1);
this.queryParameters = new Map<string,string>();
this.parameterNames.splice(0,this.parameterNames.length);
this.parameterValues.splice(0,this.parameterValues.length);
for (let filter of filters){
var filterLimits="";
if(filter.countSelectedValues > 0){
for (let value of filter.values){
if(value.selected == true){
filterLimits+=((filterLimits.length == 0)?'':',') +'"'+ StringUtils.URIEncode(value.id)+'"';
}
}
this.queryParameters.set(filter.filterId,filterLimits);
if(filterLimits.length > 0){
this.parameterNames.push(filter.filterId);
this.parameterValues.push(filterLimits);
}
allLimits+=(allLimits.length==0?"?":"&")+((filterLimits.length == 0 )?'':filter.filterId + '='+ filterLimits) ;
}
}
if(this.searchUtils.keyword.length > 0 ){
allLimits+=(allLimits.length==0?"?":"&")+'keyword=' + this.searchUtils.keyword;
this.parameterNames.push("keyword");
this.parameterValues.push(this.searchUtils.keyword);
}
if(this.searchUtils.page != 1 && includePage){
allLimits+=((allLimits.length == 0)?'?':'&') + 'page=' + this.searchUtils.page;
}
return allLimits;
}
/*
*
*/
private createSearchQueryParameters(filters:Filter[]){
var allFqs = "";
for (let filter of filters){
if(filter.countSelectedValues > 0){
var fq = "";
var count_selected=0;
for (let value of filter.values){
if(value.selected == true){
count_selected++;
fq+=(fq.length > 0 ? " " + filter.filterOperator + " ":"" ) + filter.filterId + " exact " + StringUtils.quote(StringUtils.URIEncode(value.id));
}
}
fq="&fq="+fq;
allFqs += fq;
}
}
var doiQuery = "";
var keywordQuery = "";
if((this.searchUtils.keyword && this.searchUtils.keyword.length > 0)){
if((this.type == 'publications' ||this.type == 'research data')){
var DOIs:string[] = DOI.getDOIsFromString(this.searchUtils.keyword);
var doisParams = "";
for(var i =0 ;i < DOIs.length; i++){
doisParams+=(doisParams.length > 0?"&":"")+'doi="'+ DOIs[i]+'"';
}
if(doisParams.length > 0){
doiQuery += "&"+doisParams;
}else{
keywordQuery += "&q="+StringUtils.URIEncode(this.searchUtils.keyword);
}
}else{
keywordQuery += "&q="+StringUtils.URIEncode(this.searchUtils.keyword);
}
}
return (doiQuery.length > 0 ? doiQuery:keywordQuery) + allFqs;
}
private createIndexQueryParameters(filters:Filter[]){
var allFqs = "";
for (let filter of filters){
if(filter.countSelectedValues > 0){
var count_selected=0;
var fq = "";
for (let value of filter.values){
if(value.selected == true){
count_selected++;
fq+=(fq.length > 0 ? " " + filter.filterOperator + " ":"" ) + filter.filterId + " exact " + StringUtils.quote(StringUtils.URIEncode(value.id));
}
}
if(count_selected > 0){
fq="&fq="+fq;
allFqs += fq;
}
}
}
var doiQuery = "";
var keywordQuery = "";
if((this.searchUtils.keyword && this.searchUtils.keyword.length > 0)){
if((this.type == 'publications' ||this.type == 'research data')){
var DOIs:string[] = DOI.getDOIsFromString(this.searchUtils.keyword);
var doisParams = "";
for(var i =0 ;i < DOIs.length; i++){
doisParams+=(doisParams.length > 0?"&":"")+'doi="'+ DOIs[i]+'"';
}
if(doisParams.length > 0){
doiQuery += "&"+doisParams;
}
}else{
keywordQuery += " and ("+StringUtils.quote(StringUtils.URIEncode(this.searchUtils.keyword)) +")"
}
}
return (doiQuery.length > 0 ? doiQuery:keywordQuery) + allFqs;
}
public isFiltered(){
var filtered=false;
this.showUnknownFilters = false;
for (let filter of this.filters){
if(filter.countSelectedValues > 0){
filtered = true;
break;
}
}
if(this.searchUtils.keyword.length > 0 ){
filtered = true;
}
var errorCodes:ErrorCodes = new ErrorCodes();
if(this.queryParameters.keys() && this.searchUtils.totalResults == 0 && this.searchUtils.status !=errorCodes.LOADING ){
this.showUnknownFilters = true;
}
return filtered;
}
private clearKeywords(){
if(this.searchUtils.keyword.length > 0 ){
this.searchUtils.keyword ='';
}
this.goTo(1);
}
private clearFilters(){
for (var i =0 ; i < this.filters.length; i++){
for (var j=0; j < this.filters[i].countSelectedValues; j++){
if(this.filters[i].values[j].selected){
this.filters[i].values[j].selected = false;
}
this.filters[i].countSelectedValues = 0;
}
}
this.clearKeywords();
}
private removeFilter(value:Value,filter:Filter){
filter.countSelectedValues--;
if(value.selected == true){
value.selected = false;
}
this.goTo(1);
}
goTo(page:number = 1){
this.searchUtils.page = page;
console.info("searchUtils.page goto = "+this.searchUtils.page);
var urlParameters = this.createUrlParameters(this.filters,true);
console.info("urlParams : "+urlParameters);
this.updateBaseUrlWithParameters(this.filters);
var queryParameters = this.createSearchQueryParameters(this.filters);
console.info("queryParams : "+queryParameters);
var indexQuery = this.createIndexQueryParameters(this.filters);
this.location.go(location.pathname,urlParameters);
/* Code For Piwik*/
if (typeof localStorage !== 'undefined') {
localStorage.setItem('previousRoute', this.router.url);
}
if(OpenaireProperties.isPiwikTrackEnabled() && (typeof document !== 'undefined')){
this.piwiksub = this._piwikService.trackView(this.pageTitle).subscribe();
}
/* End Piwik Code */
this.queryChange.emit({
value: queryParameters,
index:indexQuery
});
if (typeof document !== 'undefined') {
this.element.nativeElement.scrollIntoView();
}
}
filterChanged($event){
console.info("filter Changed");
this.goTo(1);
}
keywordChanged($event) {
this.searchUtils.keyword = $event.value;
this.goTo(1);
}
/*
* Get A sub-array of this.refineFields array, which contains the ids of the selected filters
*/
public getSelectedFilters():string[] {
var selected:string[] = [];
for(var i=0; i < this.filters.length; i++){
var filter:Filter = this.filters[i];
if(filter.countSelectedValues > 0){
selected.push(filter.filterId);
}
}
return selected;
}
/*
* Get A sub-array of this.refineFields array, which contains the ids of the selected parameters
*/
private getSelectedParameters():string[] {
var selected:string[] = [];
var params:string[] = Object.keys(this.queryParameters);
for(var i=0; i < params.length; i++){
if(this.refineFields.indexOf(params[i]) > -1){
selected.push(params[i]);
}
}
return selected;
}
/*
* Get A sub-array of this.refineFields array, which hides hidden fields (e.g Funding level 0,1,2,..), and contains those that depend on another fields (e.g Funding level 0 if Funder is selected )
*/
public getFields():string[] {
var selected_filters:string[] = this.getSelectedFilters();
if(selected_filters.length == 0){
selected_filters = this.getSelectedParameters();
}
var fields:string[] = [];
for(var i =0 ; i < this.refineFields.length;i++){
var dependentTo = this.searchFieldsHelper.DEPENDENT_FIELDS[this.refineFields[i]];
//if filter is not marked as hidden OR it is hidden but it is dependent to a field that it IS selected
if(this.searchFieldsHelper.HIDDEN_FIELDS.indexOf(this.refineFields[i]) == -1 || (selected_filters.indexOf(dependentTo) != -1) || (selected_filters.indexOf(this.refineFields[i]) != -1) ){
fields.push(this.refineFields[i]);
}
}
return fields;
}
/*
* Get a query string of all fields, that want to get from search (e.g. &fields=funderid&fields=projectstartyear&...))
*/
public getRefineFieldsQuery():string{
var fields:string[] = this.getFields();
var fieldsStr = ""
for(var i =0 ; i < fields.length ;i++){
fieldsStr+="&fields="+fields[i];
}
return "&refine=true"+fieldsStr;
}
// for loading
public openLoading(){
if(this.loading){
this.loading.open();
}
}
public closeLoading(){
if(this.loading){
this.loading.close();
}
}
getSelectedValues(filter):any{
var selected = [];
if(filter.countSelectedValues >0){
for (var i=0; i < filter.values.length; i++){
if(filter.values[i].selected){
selected.push(filter.values[i]);
}
}
}
return selected;
}
}