var peliasQuery = require('pelias-query'), defaults = require('./search_defaults'), textParser = require('./text_parser'), check = require('check-types'); //------------------------------ // general-purpose search query //------------------------------ var fallbackQuery = new peliasQuery.layout.FallbackQuery(); var geodisambiguationQuery = new peliasQuery.layout.GeodisambiguationQuery(); // scoring boost fallbackQuery.score( peliasQuery.view.focus_only_function( peliasQuery.view.phrase ) ); fallbackQuery.score( peliasQuery.view.popularity_only_function ); fallbackQuery.score( peliasQuery.view.population_only_function ); geodisambiguationQuery.score( peliasQuery.view.focus_only_function( peliasQuery.view.phrase ) ); geodisambiguationQuery.score( peliasQuery.view.popularity_only_function ); geodisambiguationQuery.score( peliasQuery.view.population_only_function ); // -------------------------------- // non-scoring hard filters fallbackQuery.filter( peliasQuery.view.boundary_country ); fallbackQuery.filter( peliasQuery.view.boundary_circle ); fallbackQuery.filter( peliasQuery.view.boundary_rect ); fallbackQuery.filter( peliasQuery.view.sources ); fallbackQuery.filter( peliasQuery.view.layers ); fallbackQuery.filter( peliasQuery.view.categories ); geodisambiguationQuery.filter( peliasQuery.view.boundary_country ); geodisambiguationQuery.filter( peliasQuery.view.boundary_circle ); geodisambiguationQuery.filter( peliasQuery.view.boundary_rect ); geodisambiguationQuery.filter( peliasQuery.view.sources ); geodisambiguationQuery.filter( peliasQuery.view.layers ); geodisambiguationQuery.filter( peliasQuery.view.categories ); // -------------------------------- /** map request variables to query variables for all inputs provided by this HTTP request. **/ function generateQuery( clean ){ var vs = new peliasQuery.Vars( defaults ); // input text vs.var( 'input:name', clean.text ); // sources vs.var( 'sources', clean.sources); // layers vs.var( 'layers', clean.layers); // categories if (clean.categories) { vs.var('input:categories', clean.categories); } // size if( clean.querySize ) { vs.var( 'size', clean.querySize ); } // focus point if( check.number(clean['focus.point.lat']) && check.number(clean['focus.point.lon']) ){ vs.set({ 'focus:point:lat': clean['focus.point.lat'], 'focus:point:lon': clean['focus.point.lon'] }); } // boundary rect if( check.number(clean['boundary.rect.min_lat']) && check.number(clean['boundary.rect.max_lat']) && check.number(clean['boundary.rect.min_lon']) && check.number(clean['boundary.rect.max_lon']) ){ vs.set({ 'boundary:rect:top': clean['boundary.rect.max_lat'], 'boundary:rect:right': clean['boundary.rect.max_lon'], 'boundary:rect:bottom': clean['boundary.rect.min_lat'], 'boundary:rect:left': clean['boundary.rect.min_lon'] }); } // boundary circle // @todo: change these to the correct request variable names if( check.number(clean['boundary.circle.lat']) && check.number(clean['boundary.circle.lon']) ){ vs.set({ 'boundary:circle:lat': clean['boundary.circle.lat'], 'boundary:circle:lon': clean['boundary.circle.lon'] }); if( check.number(clean['boundary.circle.radius']) ){ vs.set({ 'boundary:circle:radius': Math.round( clean['boundary.circle.radius'] ) + 'km' }); } } // boundary country if( check.string(clean['boundary.country']) ){ vs.set({ 'boundary:country': clean['boundary.country'] }); } // run the address parser if( clean.parsed_text ){ textParser( clean.parsed_text, vs ); } var q = getQuery(vs); //console.log(JSON.stringify(q, null, 2)); return q; } function getQuery(vs) { if (hasStreet(vs) || isCityStateOnlyWithOptionalCountry(vs)) { return { type: 'fallback', body: fallbackQuery.render(vs) }; } // returning undefined is a signal to a later step that the addressit-parsed // query should be queried for return undefined; } function hasStreet(vs) { return vs.isset('input:street'); } function isCityStateOnlyWithOptionalCountry(vs) { var isSet = function(layer) { return vs.isset('input:' + layer); }; var allowedFields = ['locality', 'region']; var disallowedFields = ['query', 'category', 'housenumber', 'street', 'neighbourhood', 'borough', 'postcode', 'county']; return allowedFields.every(isSet) && !disallowedFields.some(isSet); } module.exports = generateQuery;