From 3f3a6489da71ff2ea428eb2fcffd254a0181b10b Mon Sep 17 00:00:00 2001
From: welefen <welefen@gmail.com>
Date: Sun, 17 Nov 2013 15:05:21 +0800
Subject: [PATCH] get version from package file

---
 lib/Lib/Core/Db.class.js | 132 ++++++++++++++++++++++++++++++++++++++-
 lib/think.js             |   4 +-
 2 files changed, 134 insertions(+), 2 deletions(-)

diff --git a/lib/Lib/Core/Db.class.js b/lib/Lib/Core/Db.class.js
index bae6a985..edd288e2 100644
--- a/lib/Lib/Core/Db.class.js
+++ b/lib/Lib/Core/Db.class.js
@@ -1,4 +1,5 @@
 var url = require("url");
+var querystring = require("querystring");
 /**
  * 数据库基类
  * @return {[type]} [description]
@@ -143,6 +144,7 @@ var db = module.exports = Class(function(){
          */
         parseWhere: function(where){
             var whereStr = "";
+            var self = this;
             if (is_string(where)) {
                 whereStr = where;
             }else{
@@ -168,10 +170,138 @@ var db = module.exports = Class(function(){
                         if (!keySafeRegExp.test(key.trim())) {
                             throw_error(key + " is not safe");
                         };
-                        
+                        var multi = where && where['_multi'];
+                        key = key.trim();
+                        // 支持 name|title|nickname 方式定义查询字段
+                        if (key.indexOf('|') > -1) {
+                            var arr = key.split("|");
+                            whereStr += arr.map(function(item, i){
+                                var v = multi ? val[i] : val;
+                                return "(" + self.parseWhereItem(self.parseKey(item, v)) + ")";
+                            }).join(" OR ");
+                        }else if (key.indexOf("&") > -1) {
+                            var arr = key.split("&");
+                            whereStr += arr.map(function(item, i){
+                                var v = multi ? val[i] : val;
+                                return "(" + self.parseWhereItem(self.parseKey(item, v)) + ")";
+                            }).join(" AND ");
+                        }else{
+                            whereStr += this.parseWhereItem(this.parseKey(key), val);
+                        }
                     }
+                    whereStr += ")" + operate;
                 }
+                whereStr = whereStr.substr(0, -operate.length);
             }
+            return whereStr ? (" WHERE " + whereStr) : "";
+        },
+        parseWhereItem: function(key, val){
+
+            return "";
+        },
+        parseThinkWhere: function(key, val){
+            var whereStr = "";
+            switch(key){
+                // 字符串模式查询条件
+                case "_string":
+                    return val;
+                // 复合查询条件
+                case "_complex":
+                    return this.parseWhere(val).substr(6);
+                // 字符串模式查询条件
+                case "_query":
+                    var where = querystring.parse(val);
+                    var op = " AND ";
+                    if ("_logic" in where) {
+                        op = " " + where["_logic"].toLowerCase() + " ";
+                        delete where["_logic"];
+                    };
+                    var arr = [];
+                    for(var name in where){
+                        var val = where[name];
+                        val = this.parseKey(name) + " = " + this.parseValue(val);
+                        arr.push(val);
+                    }
+                    whereStr = arr.join(op);
+                    return whereStr;
+                default:
+                    return "";
+            }
+            return "";
+        },
+        parseLimit: function(limit){
+            return limit ? (" LIMIT " + limit) : "";
+        },
+        parseJoin: function(join){
+            var joinStr = "";
+            if (join) {
+                if (is_object(join)) {
+                    for(var key in join){
+                        var val = join[key];
+                        if (val.toLowerCase().indexOf("join") > -1) {
+                            joinStr += val;
+                        }else{
+                            joinStr += " LEFT JOIN " + val;
+                        }
+                    }
+                }else{
+                    joinStr += " LEFT JOIN " + join;
+                }
+            };
+            //将__TABLE_NAME__这样的字符串替换成正规的表名,并且带上前缀和后缀
+            joinStr = joinStr.replace(/__([A-Z_-]+)__/g, function(a, b){
+                return C('db_prefix') + b.toLowerCase();
+            });
+            return joinStr;
+        },
+        parseOrder: function(order){
+            var orderStr = "";
+            var self = this;
+            if (is_array(order)) {
+                orderStr = order.map(function(item){
+                    return self.parseKey(item);
+                }).join(",");
+            }else if (is_object(order)) {
+                var arr = [];
+                for(var key in order){
+                    var val = order[key];
+                    val = this.parseKey(key) + " " + val;
+                    arr.push(val);
+                }
+                orderStr = arr.join(",");
+            };
+            return order ? (" ORDER BY " + order) : "";
+        },
+        parseGroup: function(group){
+            return group ? (" GROUP BY " + group) : "";
+        },
+        parseHaving: function(having){
+            return having ? (" HAVING " + having) : "";
+        },
+        parseComment: function(comment){
+            return comment ? (" /* " + comment + "*/") : "";   
+        },
+        parseDistinct: function(distinct){
+            return distinct ? (" Distinct " + distinct) : "";
+        },
+        parseUnion: function(union){
+            if (!union) {
+                return "";
+            };
+            var str = "";
+            if ("_all" in union) {
+                str = "UNION ALL ";
+                delete union["_all"];
+            }else{
+                str = "UNION ";
+            }
+            var sql = [];
+            for(var key in union){
+                var val = union[key];
+                val = str + (is_array(val) ? this.buildSelectSql(val) : val);
+                sql.push(sql);
+            }
+            return sql.join(" ");
         }
     }
 });
diff --git a/lib/think.js b/lib/think.js
index ccdcec35..f9651ba2 100644
--- a/lib/think.js
+++ b/lib/think.js
@@ -12,6 +12,8 @@ if (!global.RUNTIME_PATH) {
 if (global.APP_DEBUG === undefined) {
     global.APP_DEBUG = false;
 };
-global.THINK_VERSION = "0.1.4";
 global.THINK_PATH = __dirname;
+//从package.json文件里获取版本号
+var version = JSON.parse(require("fs").readFileSync(THINK_PATH + "/../package.json", "utf8")).version;
+global.THINK_VERSION = version;
 require(THINK_PATH + "/Common/runtime.js");
\ No newline at end of file