Added possibility to create cyclic templates

Author: Pavel Romanov

package.json

@@ -6,7 +6,7 @@
     "url": "git://github.com/Shikyaro/multi-data-source.git"
   },
   "license": "MIT",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "scripts": {
     "autofix": "eslint --fix ."
   },

query/QueryTemplater.js

@@ -1,3 +1,4 @@
+const escapeParams = require('./escapeParams.js');
 /**
  * @class
  */
@@ -9,6 +10,40 @@ class QueryTemplater {
         this.queryCache = new Map();
     }
 
+    /**
+     * @param {String} query query
+     * @param {String} addon addon
+     * @param {*} buildParam buildParam
+     * @param {Boolean} value value
+     * @param {String} sql sql
+     * @returns {string | void | *} built query
+     * @private
+     */
+    _processCommonTemplate(query, addon, buildParam, value, sql) {
+        return query.replace(`{{${addon}}}`, !!buildParam === value ? sql : '');
+    }
+
+    /**
+     * @param {String} query query
+     * @param {String} addon addon
+     * @param {*} buildParam buildParam
+     * @param {String} delimiter delimiter
+     * @param {String} sql sql
+     * @returns {string | void | *} built query
+     * @private
+     */
+    _processCyclicTemplate(query, addon, buildParam, delimiter, sql) {
+        const replacementString = buildParam.reduce((res, paramObject, id) => {
+            if (typeof (paramObject) === 'object') {
+                res += ` ${id ? delimiter : ''} ${escapeParams(sql, paramObject)}`; // eslint-disable-line no-param-reassign
+            }
+
+            return res;
+        }, '');
+
+        return query.replace(`{{${addon}}}`, replacementString);
+    }
+
     /**
      * @param {String} name queryName
      * @param {Object} buildParams queryTemplateParams
@@ -24,8 +59,13 @@ class QueryTemplater {
         } else {
             builtQuery = sql;
             for (const add of Object.keys(addons)) {
-                const {arg: {name, value}, sql} = addons[add];
-                builtQuery = builtQuery.replace(`{{${add}}}`, !!buildParams[name] === value ? sql : '');
+                const {arg: {name, value}, sql, delimiter} = addons[add];
+                const param = buildParams[name];
+                if (Array.isArray(param)) {
+                    builtQuery = this._processCyclicTemplate(builtQuery, add, param, delimiter, sql);
+                } else {
+                    builtQuery = this._processCommonTemplate(builtQuery, add, param, value, sql);
+                }
             }
             this.queryCache.set(queryKey, builtQuery);
         }