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38 lines
1.3 KiB
38 lines
1.3 KiB
9 years ago
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var peliasQuery = require('pelias-query'),
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ngrams_strict = require('./ngrams_strict');
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/**
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Ngrams view which trims the 'input:name' and only uses the LAST TOKEN.
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eg. if the input was "100 foo str", then 'input:name' would only be 'str'
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note: it is assumed that the rest of the input is matched using another view.
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there is an additional flag 'input:name:isComplete' used to disable this view
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selectively, see that section for more info.
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code notes: this view makes a copy of the $vs object in order to change their
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values without mutating the original values, which may be expected in their
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unaltered form by other views.
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**/
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module.exports = function( vs ){
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// Totally disable this view when bool value 'input:name:isComplete' is true.
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// This is the case when the user has typed a comma, so we can assume
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// that the 'name' part of the query is now complete.
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if( vs.var('input:name:isComplete').get() ){ return null; }
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// make a copy Vars so we don't mutate the original
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var vsCopy = new peliasQuery.Vars( vs.export() );
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// get the input 'name' variable
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var name = vs.var('input:name').get();
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// set the 'name' variable in the copy to only the last token
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vsCopy.var('input:name').set( name.substr( name.lastIndexOf(' ')+1 ) );
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// return the view rendered using the copy
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return ngrams_strict( vsCopy );
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};
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