node_modules_overwrite added

sails/src/node_modules_overwrite/README.md

+Files contained here are intented to overwrite dependencies code, because of a enhacement or a bug not included in official distributions and done by us.

sails/src/node_modules_overwrite/sails-mysql/lib/utils.js

+/**
+ * Utility Functions
+ */
+
+// Dependencies
+var mysql = require('mysql');
+var _ = require('lodash');
+var url = require('url');
+
+// Module Exports
+
+var utils = module.exports = {};
+
+/**
+ * Parse URL string from config
+ *
+ * Parse URL string into connection config parameters
+ */
+
+utils.parseUrl = function (config) {
+  if(!_.isString(config.url)) {
+    return config;
+  }
+
+  var obj = url.parse(config.url);
+
+  config.host = obj.hostname || config.host;
+  config.port = obj.port || config.port;
+
+  if(_.isString(obj.pathname)) {
+    config.database = obj.pathname.split('/')[1] || config.database;
+  }
+
+  if(_.isString(obj.auth)) {
+    config.user = obj.auth.split(':')[0] || config.user;
+    config.password = obj.auth.split(':')[1] || config.password;
+  }
+  return config;
+};
+
+/**
+ * Prepare values
+ *
+ * Transform a JS date to SQL date and functions
+ * to strings.
+ */
+
+utils.prepareValue = function(value) {
+
+  if(_.isUndefined(value) || value === null) {
+    return value;
+  }
+
+  // Cast functions to strings
+  if (_.isFunction(value)) {
+    value = value.toString();
+  }
+
+  // Store Arrays and Objects as strings
+  if (_.isArray(value) || value.constructor && value.constructor.name === 'Object') {
+    try {
+      value = JSON.stringify(value);
+    } catch (e) {
+      // just keep the value and let the db handle an error
+      value = value;
+    }
+  }
+
+  // Cast dates to SQL
+  if (_.isDate(value)) {
+    value = utils.toSqlDate(value);
+  }
+
+  return mysql.escape(value);
+};
+
+/**
+ * Builds a Select statement determining if Aggeregate options are needed.
+ */
+
+utils.buildSelectStatement = function(criteria, table, schemaDefs) {
+
+  var query = '';
+
+  if(criteria.groupBy || criteria.sum || criteria.average || criteria.min || criteria.max) {
+    query = 'SELECT ';
+
+    // Append groupBy columns to select statement
+    if(criteria.groupBy) {
+      if(_.isArray(criteria.groupBy)) {
+        _.each(criteria.groupBy, function(opt){
+          query += opt + ', ';
+        });
+
+      } else {
+        query += criteria.groupBy + ', ';
+      }
+    }
+
+    // Handle SUM
+    if (criteria.sum) {
+      if(_.isArray(criteria.sum)) {
+        _.each(criteria.sum, function(opt){
+          query += 'SUM(' + opt + ') AS ' + opt + ', ';
+        });
+
+      } else {
+        query += 'SUM(' + criteria.sum + ') AS ' + criteria.sum + ', ';
+      }
+    }
+
+    // Handle AVG (casting to float to fix percision with trailing zeros)
+    if (criteria.average) {
+      if(_.isArray(criteria.average)) {
+        _.each(criteria.average, function(opt){
+          query += 'AVG(' + opt + ') AS ' + opt + ', ';
+        });
+
+      } else {
+        query += 'AVG(' + criteria.average + ') AS ' + criteria.average + ', ';
+      }
+    }
+
+    // Handle MAX
+    if (criteria.max) {
+      if(_.isArray(criteria.max)) {
+        _.each(criteria.max, function(opt){
+          query += 'MAX(' + opt + ') AS ' + opt + ', ';
+        });
+
+      } else {
+        query += 'MAX(' + criteria.max + ') AS ' + criteria.max + ', ';
+      }
+    }
+
+    // Handle MIN
+    if (criteria.min) {
+      if(_.isArray(criteria.min)) {
+        _.each(criteria.min, function(opt){
+          query += 'MIN(' + opt + ') AS ' + opt + ', ';
+        });
+
+      } else {
+        query += 'MIN(' + criteria.min + ') AS ' + criteria.min + ', ';
+      }
+    }
+
+    // trim trailing comma
+    query = query.slice(0, -2) + ' ';
+
+    // Add FROM clause
+    return query += 'FROM `' + table + '` ';
+  }
+
+  /**
+   * If no aggregate options lets just build a normal query
+   */
+
+
+  // Add all keys to the select statement for this table
+  query += 'SELECT ';
+
+  var selectKeys = [],
+      joinSelectKeys = [];
+
+  if ( !schemaDefs[table] ) {
+    throw new Error('Schema definition missing for table: `'+table+'`');
+  }
+
+  _.each(schemaDefs[table], function(schemaDef, key) {
+    selectKeys.push({ table: table, key: key });
+  });
+
+  // Check for joins
+  if(criteria.joins || criteria.join) {
+
+    var joins = criteria.joins || criteria.join;
+
+    _.each(joins, function(join) {
+      if(!join.select) {
+        return;
+      }
+
+      _.each(_.keys(schemaDefs[join.child.toLowerCase()]), function(key) {
+        var _join = _.cloneDeep(join);
+        _join.key = key;
+        joinSelectKeys.push(_join);
+      });
+
+      // Remove the foreign key for this join from the selectKeys array
+      selectKeys = selectKeys.filter(function(select) {
+        var keep = true;
+        if(select.key === join.parentKey && join.removeParentKey) {
+          keep = false;
+        }
+        return keep;
+      });
+    });
+  }
+
+  // Add all the columns to be selected that are not joins
+  _.each(selectKeys, function(select) {
+    query += '`' + select.table + '`.`' + select.key + '`, ';
+  });
+
+  // Add all the columns from the joined tables
+  _.each(joinSelectKeys, function(select) {
+
+    // Create an alias by prepending the child table with the alias of the join
+    var alias = select.alias.toLowerCase() + '_' + select.child.toLowerCase();
+
+    // If this is a belongs_to relationship, keep the foreign key name from the AS part
+    // of the query. This will result in a selected column like: "user"."id" AS "user_id__id"
+    if(select.model) {
+      return query += mysql.escapeId(alias) + '.' + mysql.escapeId(select.key) + ' AS ' +
+                      mysql.escapeId(select.parentKey + '__' + select.key) + ', ';
+    }
+
+    // If a junctionTable is used, the child value should be used in the AS part of the
+    // select query.
+    if(select.junctionTable) {
+      return query += mysql.escapeId(alias) + '.' + mysql.escapeId(select.key) + ' AS ' +
+                      mysql.escapeId(select.alias + '__' + select.key) + ', ';
+    }
+
+    // Else if a hasMany attribute is being selected, use the alias plus the child
+    return query += mysql.escapeId(alias) + '.' + mysql.escapeId(select.key) + ' AS ' +
+                    mysql.escapeId(select.alias + '__' + select.key) + ', ';
+  });
+
+  // Remove the last comma
+  query = query.slice(0, -2) + ' FROM `' + table + '` ';
+
+  return query;
+};
+
+
+utils.toSqlDate = function toSqlDate(date) {
+
+  date = date.getFullYear() + '-' +
+    ('00' + (date.getMonth()+1)).slice(-2) + '-' +
+    ('00' + date.getDate()).slice(-2) + ' ' +
+    ('00' + date.getHours()).slice(-2) + ':' +
+    ('00' + date.getMinutes()).slice(-2) + ':' +
+    ('00' + date.getSeconds()).slice(-2);
+
+  return date;
+};