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160 lines
5.2 KiB
TypeScript
160 lines
5.2 KiB
TypeScript
// Loaded from https://raw.githubusercontent.com/denjucks/dex/master/lib/dialects/sqlite3/schema/tablecompiler.js
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import inherits from '../../../deps/inherits@2.0.4/inherits.js';
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import TableCompiler from '../../../schema/tablecompiler.js';
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import _ from '../../../deps/lodash@4.17.15/index.js';
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const filter = _.filter;
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const values = _.values;
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// Table Compiler
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// -------
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function TableCompiler_SQLite3() {
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TableCompiler.apply(this, arguments);
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this.primaryKey = void 0;
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}
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inherits(TableCompiler_SQLite3, TableCompiler);
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// Create a new table.
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TableCompiler_SQLite3.prototype.createQuery = function (columns, ifNot) {
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const createStatement = ifNot
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? 'create table if not exists '
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: 'create table ';
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let sql = createStatement + this.tableName() + ' (' + columns.sql.join(', ');
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// SQLite forces primary keys to be added when the table is initially created
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// so we will need to check for a primary key commands and add the columns
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// to the table's declaration here so they can be created on the tables.
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sql += this.foreignKeys() || '';
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sql += this.primaryKeys() || '';
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sql += ')';
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this.pushQuery(sql);
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};
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TableCompiler_SQLite3.prototype.addColumns = function (columns, prefix) {
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if (prefix) {
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throw new Error('Sqlite does not support alter column.');
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}
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for (let i = 0, l = columns.sql.length; i < l; i++) {
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this.pushQuery({
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sql: `alter table ${this.tableName()} add column ${columns.sql[i]}`,
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bindings: columns.bindings[i],
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});
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}
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};
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// Compile a drop unique key command.
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TableCompiler_SQLite3.prototype.dropUnique = function (columns, indexName) {
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indexName = indexName
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? this.formatter.wrap(indexName)
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: this._indexCommand('unique', this.tableNameRaw, columns);
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this.pushQuery(`drop index ${indexName}`);
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};
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TableCompiler_SQLite3.prototype.dropIndex = function (columns, indexName) {
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indexName = indexName
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? this.formatter.wrap(indexName)
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: this._indexCommand('index', this.tableNameRaw, columns);
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this.pushQuery(`drop index ${indexName}`);
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};
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// Compile a unique key command.
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TableCompiler_SQLite3.prototype.unique = function (columns, indexName) {
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indexName = indexName
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? this.formatter.wrap(indexName)
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: this._indexCommand('unique', this.tableNameRaw, columns);
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columns = this.formatter.columnize(columns);
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this.pushQuery(
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`create unique index ${indexName} on ${this.tableName()} (${columns})`
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);
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};
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// Compile a plain index key command.
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TableCompiler_SQLite3.prototype.index = function (columns, indexName) {
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indexName = indexName
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? this.formatter.wrap(indexName)
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: this._indexCommand('index', this.tableNameRaw, columns);
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columns = this.formatter.columnize(columns);
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this.pushQuery(
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`create index ${indexName} on ${this.tableName()} (${columns})`
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);
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};
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TableCompiler_SQLite3.prototype.primary = TableCompiler_SQLite3.prototype.foreign = function () {
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if (this.method !== 'create' && this.method !== 'createIfNot') {
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this.client.logger.warn(
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'SQLite3 Foreign & Primary keys may only be added on create'
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);
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}
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};
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TableCompiler_SQLite3.prototype.primaryKeys = function () {
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const pks = filter(this.grouped.alterTable || [], { method: 'primary' });
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if (pks.length > 0 && pks[0].args.length > 0) {
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const columns = pks[0].args[0];
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let constraintName = pks[0].args[1] || '';
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if (constraintName) {
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constraintName = ' constraint ' + this.formatter.wrap(constraintName);
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}
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return `,${constraintName} primary key (${this.formatter.columnize(
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columns
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)})`;
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}
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};
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TableCompiler_SQLite3.prototype.foreignKeys = function () {
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let sql = '';
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const foreignKeys = filter(this.grouped.alterTable || [], {
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method: 'foreign',
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});
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for (let i = 0, l = foreignKeys.length; i < l; i++) {
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const foreign = foreignKeys[i].args[0];
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const column = this.formatter.columnize(foreign.column);
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const references = this.formatter.columnize(foreign.references);
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const foreignTable = this.formatter.wrap(foreign.inTable);
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let constraintName = foreign.keyName || '';
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if (constraintName) {
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constraintName = ' constraint ' + this.formatter.wrap(constraintName);
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}
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sql += `,${constraintName} foreign key(${column}) references ${foreignTable}(${references})`;
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if (foreign.onDelete) sql += ` on delete ${foreign.onDelete}`;
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if (foreign.onUpdate) sql += ` on update ${foreign.onUpdate}`;
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}
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return sql;
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};
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TableCompiler_SQLite3.prototype.createTableBlock = function () {
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return this.getColumns().concat().join(',');
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};
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// Compile a rename column command... very complex in sqlite
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TableCompiler_SQLite3.prototype.renameColumn = function (from, to) {
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const compiler = this;
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this.pushQuery({
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sql: `PRAGMA table_info(${this.tableName()})`,
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output(pragma) {
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return compiler.client
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.ddl(compiler, pragma, this.connection)
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.renameColumn(from, to);
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},
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});
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};
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TableCompiler_SQLite3.prototype.dropColumn = function () {
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const compiler = this;
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const columns = values(arguments);
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this.pushQuery({
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sql: `PRAGMA table_info(${this.tableName()})`,
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output(pragma) {
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return compiler.client
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.ddl(compiler, pragma, this.connection)
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.dropColumn(columns);
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},
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});
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};
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export default TableCompiler_SQLite3;
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