Open-ILS/src/eg2/src/app/share/catalog/catalog-url.service.ts

   1 import {Injectable} from '@angular/core';
   2 import {ParamMap} from '@angular/router';
   3 import {OrgService} from '@eg/core/org.service';
   4 import {CatalogSearchContext, CatalogBrowseContext, CatalogMarcContext,
   5    CatalogTermContext, FacetFilter} from './search-context';
   6 import {CATALOG_CCVM_FILTERS} from './search-context';
   7
   8 @Injectable()
   9 export class CatalogUrlService {
  10
  11     // consider supporting a param name prefix/namespace
  12
  13     constructor(private org: OrgService) { }
  14
  15     /**
  16      * Returns a URL query structure suitable for using with
  17      * router.navigate(..., {queryParams:...}).
  18      * No navigation is performed within.
  19      */
  20     toUrlParams(context: CatalogSearchContext):
  21             {[key: string]: string | string[]} {
  22
  23         const params: any = {};
  24
  25         if (context.searchOrg) {
  26             params.org = context.searchOrg.id();
  27         }
  28
  29         if (context.pager.limit) {
  30             params.limit = context.pager.limit;
  31         }
  32
  33         if (context.pager.offset) {
  34             params.offset = context.pager.offset;
  35         }
  36
  37         // These fields can be copied directly into place
  38         ['limit', 'offset', 'sort', 'global', 'showBasket', 'sort']
  39         .forEach(field => {
  40             if (context[field]) {
  41                 // Only propagate applied values to the URL.
  42                 params[field] = context[field];
  43             }
  44         });
  45
  46         if (context.marcSearch.isSearchable()) {
  47             const ms = context.marcSearch;
  48             params.marcTag = [];
  49             params.marcSubfield = [];
  50             params.marcValue = [];
  51
  52             ms.values.forEach((val, idx) => {
  53                 if (val !== '') {
  54                     params.marcTag.push(ms.tags[idx]);
  55                     params.marcSubfield.push(ms.subfields[idx]);
  56                     params.marcValue.push(ms.values[idx]);
  57                 }
  58             });
  59         }
  60
  61         if (context.identSearch.isSearchable()) {
  62             params.identQuery = context.identSearch.value;
  63             params.identQueryType = context.identSearch.queryType;
  64         }
  65
  66         if (context.browseSearch.isSearchable()) {
  67             params.browseTerm = context.browseSearch.value;
  68             params.browseClass = context.browseSearch.fieldClass;
  69             if (context.browseSearch.pivot) {
  70                 params.browsePivot = context.browseSearch.pivot;
  71             }
  72         }
  73
  74         if (context.termSearch.isSearchable()) {
  75
  76             const ts = context.termSearch;
  77
  78             params.query = [];
  79             params.fieldClass = [];
  80             params.joinOp = [];
  81             params.matchOp = [];
  82
  83             ['format', 'available', 'hasBrowseEntry', 'date1',
  84                 'date2', 'dateOp', 'groupByMetarecord', 'fromMetarecord']
  85             .forEach(field => {
  86                 if (ts[field]) {
  87                     params[field] = ts[field];
  88                 }
  89             });
  90
  91             ts.query.forEach((val, idx) => {
  92                 if (val !== '') {
  93                     params.query.push(ts.query[idx]);
  94                     params.fieldClass.push(ts.fieldClass[idx]);
  95                     params.joinOp.push(ts.joinOp[idx]);
  96                     params.matchOp.push(ts.matchOp[idx]);
  97                 }
  98             });
  99
 100             // CCVM filters are encoded as comma-separated lists
 101             Object.keys(ts.ccvmFilters).forEach(code => {
 102                 if (ts.ccvmFilters[code] &&
 103                     ts.ccvmFilters[code][0] !== '') {
 104                     params[code] = ts.ccvmFilters[code].join(',');
 105                 }
 106             });
 107
 108             // Each facet is a JSON encoded blob of class, name, and value
 109             if (ts.facetFilters.length) {
 110                 params.facets = [];
 111                 ts.facetFilters.forEach(facet => {
 112                     params.facets.push(JSON.stringify({
 113                         c : facet.facetClass,
 114                         n : facet.facetName,
 115                         v : facet.facetValue
 116                     }));
 117                 });
 118             }
 119
 120             if (ts.copyLocations.length && ts.copyLocations[0] !== '') {
 121                 params.copyLocations = ts.copyLocations.join(',');
 122             }
 123         }
 124
 125         return params;
 126     }
 127
 128     /**
 129      * Creates a new search context from the active route params.
 130      */
 131     fromUrlParams(params: ParamMap): CatalogSearchContext {
 132         const context = new CatalogSearchContext();
 133
 134         this.applyUrlParams(context, params);
 135
 136         return context;
 137     }
 138
 139     applyUrlParams(context: CatalogSearchContext, params: ParamMap): void {
 140
 141         // Reset query/filter args.  The will be reconstructed below.
 142         context.reset();
 143         let val;
 144
 145         if (params.get('org')) {
 146             context.searchOrg = this.org.get(+params.get('org'));
 147         }
 148
 149         if (val = params.get('limit')) {
 150             context.pager.limit = +val;
 151         }
 152
 153         if (val = params.get('offset')) {
 154             context.pager.offset = +val;
 155         }
 156
 157         if (val = params.get('sort')) {
 158             context.sort = val;
 159         }
 160
 161         if (val = params.get('global')) {
 162             context.global = val;
 163         }
 164
 165         if (val = params.get('showBasket')) {
 166             context.showBasket = val;
 167         }
 168
 169         if (params.get('marcValue')) {
 170             context.marcSearch.tags = params.getAll('marcTag');
 171             context.marcSearch.subfields = params.getAll('marcSubfield');
 172             context.marcSearch.values = params.getAll('marcValue');
 173         }
 174
 175         if (params.get('identQuery')) {
 176             context.identSearch.value = params.get('identQuery');
 177             context.identSearch.queryType = params.get('identQueryType');
 178         }
 179
 180         if (params.get('browseTerm')) {
 181             context.browseSearch.value = params.get('browseTerm');
 182             context.browseSearch.fieldClass = params.get('browseClass');
 183             if (params.has('browsePivot')) {
 184                 context.browseSearch.pivot = +params.get('browsePivot');
 185             }
 186         }
 187
 188         const ts = context.termSearch;
 189
 190         // browseEntry and query searches may be facet-limited
 191         params.getAll('facets').forEach(blob => {
 192             const facet = JSON.parse(blob);
 193             ts.addFacet(new FacetFilter(facet.c, facet.n, facet.v));
 194         });
 195
 196         if (params.has('hasBrowseEntry')) {
 197
 198             ts.hasBrowseEntry = params.get('hasBrowseEntry');
 199
 200         } else if (params.has('query')) {
 201
 202             // Scalars
 203             ['format', 'available', 'date1', 'date2',
 204                 'dateOp', 'groupByMetarecord', 'fromMetarecord']
 205             .forEach(field => {
 206                 if (params.has(field)) {
 207                     ts[field] = params.get(field);
 208                 }
 209             });
 210
 211             // Arrays
 212             ['query', 'fieldClass', 'joinOp', 'matchOp'].forEach(field => {
 213                 const arr = params.getAll(field);
 214                 if (params.has(field)) {
 215                     ts[field] = params.getAll(field);
 216                 }
 217             });
 218
 219             CATALOG_CCVM_FILTERS.forEach(code => {
 220                 const val = params.get(code);
 221                 if (val) {
 222                     ts.ccvmFilters[code] = val.split(/,/);
 223                 } else {
 224                     ts.ccvmFilters[code] = [''];
 225                 }
 226             });
 227
 228             if (params.get('copyLocations')) {
 229                 ts.copyLocations = params.get('copyLocations').split(/,/);
 230             }
 231         }
 232     }
 233 }
 234
 235