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