Initial commit

lib/assets/javascripts/builder/helpers/table-name-utils.js

@@ -0,0 +1,55 @@
+/**
+ *  Functions to work with SQL table names
+ */
+
+module.exports = {
+  getUnqualifiedName: function (tablename) {
+    if (!tablename) return null;
+    var tk = tablename.split('.');
+    if (tk.length === 2) {
+      return this._getUnquotedName(tk[1]);
+    }
+    return this._getUnquotedName(tablename);
+  },
+
+  getUsername: function (tablename) {
+    if (!tablename) return null;
+    var tk = tablename.split('.');
+    if (tk.length === 2) {
+      return this._getUnquotedName(tk[0]);
+    }
+    return '';
+  },
+
+  _getUnquotedName: function (tablename) {
+    return tablename && tablename.replace(/"/g, '');
+  },
+
+  _quoteIfNeeded: function (name) {
+    var VALID_IDENTIFIER = /^[a-zA-Z_][a-zA-Z0-9_$]*$/;
+    name = this._getUnquotedName(name);
+    if (!VALID_IDENTIFIER.test(name)) {
+      name = '"' + name + '"';
+    }
+    return name;
+  },
+
+  getQualifiedTableName: function (tableName, userName, inOrganization) {
+    var schemaPrefix = (inOrganization && userName) ? this._quoteIfNeeded(userName) + '.' : '';
+    return schemaPrefix + this._quoteIfNeeded(this.getUnqualifiedName(tableName));
+  },
+
+  isSameTableName: function (firstTableName, secondTableName, ownerUsername) {
+    var firstParts = this._getTableNameParts(firstTableName, ownerUsername);
+    var secondParts = this._getTableNameParts(secondTableName, ownerUsername);
+
+    return firstParts[0] === secondParts[0] && firstParts[1] === secondParts[1];
+  },
+
+  _getTableNameParts: function (tableName, ownerUsername) {
+    var table = this.getUnqualifiedName(tableName);
+    var username = this.getUsername(tableName) || ownerUsername;
+
+    return [username, table];
+  }
+};