82 lines
2.4 KiB
JavaScript
82 lines
2.4 KiB
JavaScript
// Oracle Schema Compiler
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// -------
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const inherits = require('inherits');
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const SchemaCompiler = require('../../../schema/compiler');
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const utils = require('../utils');
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const Trigger = require('./trigger');
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function SchemaCompiler_Oracle() {
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SchemaCompiler.apply(this, arguments);
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}
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inherits(SchemaCompiler_Oracle, SchemaCompiler);
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// Rename a table on the schema.
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SchemaCompiler_Oracle.prototype.renameTable = function(tableName, to) {
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const renameTable = Trigger.renameTableAndAutoIncrementTrigger(
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this.client.logger,
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tableName,
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to
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);
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this.pushQuery(renameTable);
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};
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// Check whether a table exists on the query.
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SchemaCompiler_Oracle.prototype.hasTable = function(tableName) {
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this.pushQuery({
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sql:
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'select TABLE_NAME from USER_TABLES where TABLE_NAME = ' +
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this.formatter.parameter(tableName),
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output(resp) {
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return resp.length > 0;
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},
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});
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};
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// Check whether a column exists on the schema.
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SchemaCompiler_Oracle.prototype.hasColumn = function(tableName, column) {
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const sql =
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`select COLUMN_NAME from USER_TAB_COLUMNS ` +
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`where TABLE_NAME = ${this.formatter.parameter(tableName)} ` +
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`and COLUMN_NAME = ${this.formatter.parameter(column)}`;
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this.pushQuery({ sql, output: (resp) => resp.length > 0 });
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};
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SchemaCompiler_Oracle.prototype.dropSequenceIfExists = function(sequenceName) {
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this.pushQuery(
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utils.wrapSqlWithCatch(
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`drop sequence ${this.formatter.wrap(sequenceName)}`,
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-2289
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)
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);
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};
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SchemaCompiler_Oracle.prototype._dropRelatedSequenceIfExists = function(
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tableName
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) {
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// removing the sequence that was possibly generated by increments() column
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const sequenceName = utils.generateCombinedName(
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this.client.logger,
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'seq',
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tableName
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);
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this.dropSequenceIfExists(sequenceName);
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};
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SchemaCompiler_Oracle.prototype.dropTable = function(tableName) {
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this.pushQuery(`drop table ${this.formatter.wrap(tableName)}`);
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// removing the sequence that was possibly generated by increments() column
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this._dropRelatedSequenceIfExists(tableName);
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};
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SchemaCompiler_Oracle.prototype.dropTableIfExists = function(tableName) {
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this.pushQuery(
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utils.wrapSqlWithCatch(`drop table ${this.formatter.wrap(tableName)}`, -942)
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);
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// removing the sequence that was possibly generated by increments() column
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this._dropRelatedSequenceIfExists(tableName);
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};
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module.exports = SchemaCompiler_Oracle;
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