dijkstra-backend-cloudron/node_modules/knex/lib/dialects/oracle/schema/compiler.js

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