groonga/gcs [master] Use "==" operator to search literal fields (Groonga-commit) - Groonga - fulltext search engine.

YUKI Hiroshi	2012-08-23 14:12:00 +0900 (Thu, 23 Aug 2012)

  New Revision: 16f7ccb80f24e5c15605cf72d5e1401ad72601d1
  https://github.com/groonga/gcs/commit/16f7ccb80f24e5c15605cf72d5e1401ad72601d1

  Log:
    Use "==" operator to search literal fields

  Modified files:
    lib/bq-translator.js

  Modified: lib/bq-translator.js (+25 -6)
===================================================================

--- lib/bq-translator.js    2012-08-23 12:55:33 +0900 (02d9e79)
+++ lib/bq-translator.js    2012-08-23 14:12:00 +0900 (2e5e07b)
@@ -13,6 +13,7 @@
     * (not ...)
 */
 
+var IndexField = require('./database').IndexField;
 
 function BooleanQueryTranslator(query) {
   this.query = query;
@@ -226,6 +227,7 @@ BooleanQueryTranslator.prototype = {
     this.offset++;
 
     var tokens = [];
+    var type = field ? this.getField(field).type : "text" ;
     var value = "";
     var self = this;
     var addKeywordToken = function() {
@@ -252,8 +254,12 @@ BooleanQueryTranslator.prototype = {
       }
 
       if (character == " " || character == "+") {
-        addKeywordToken();
-        tokens.push("&&");
+        if (type == "literal") {
+          value += character;
+        } else {
+          addKeywordToken();
+          tokens.push("&&");
+        }
       } else if (character == "|") {
         addKeywordToken();
         tokens.push("||");
@@ -280,10 +286,15 @@ BooleanQueryTranslator.prototype = {
     this.throwTranslateError("close single quote for string value is missing");
   },
   translateExpressionValueStringKeyword: function(field, value) {
-    var operator = "@";
-    if (value[value.length - 1] == "*") {
-      operator = "@^";
-      value = value.substring(0, value.length - 1);
+    var operator;
+    if (!field || this.getField(field).type == "text") {
+      operator = "@";
+      if (value[value.length - 1] == "*") {
+        operator = "@^";
+        value = value.substring(0, value.length - 1);
+      }
+    } else {
+      operator = "==";
     }
     return this.constructBinaryOperation(field, operator, "\"" + value + "\"");
   },
@@ -390,6 +401,14 @@ BooleanQueryTranslator.prototype = {
         return expressions[0];
       }
     }
+  },
+  getField: function(fieldName) {
+    var field;
+    if (this.domain)
+      field = this.domain.getIndexField(fieldName);
+    if (!field)
+      field = new IndexField(fieldName).setType("text");
+    return field;
   }
 };
 
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[Groonga-commit] groonga/gcs [master] Use "==" operator to search literal fields