knex-firebird-dialect
Version:
Firebird dialect for Knex.js
293 lines (289 loc) • 37.3 kB
JavaScript
;
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports["default"] = void 0;
var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));
var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));
var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
var _lodash = require("lodash");
function _createForOfIteratorHelper(r, e) { var t = "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (!t) { if (Array.isArray(r) || (t = _unsupportedIterableToArray(r)) || e && r && "number" == typeof r.length) { t && (r = t); var _n = 0, F = function F() {}; return { s: F, n: function n() { return _n >= r.length ? { done: !0 } : { done: !1, value: r[_n++] }; }, e: function e(r) { throw r; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var o, a = !0, u = !1; return { s: function s() { t = t.call(r); }, n: function n() { var r = t.next(); return a = r.done, r; }, e: function e(r) { u = !0, o = r; }, f: function f() { try { a || null == t["return"] || t["return"](); } finally { if (u) throw o; } } }; }
function _unsupportedIterableToArray(r, a) { if (r) { if ("string" == typeof r) return _arrayLikeToArray(r, a); var t = {}.toString.call(r).slice(8, -1); return "Object" === t && r.constructor && (t = r.constructor.name), "Map" === t || "Set" === t ? Array.from(r) : "Arguments" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0; } }
function _arrayLikeToArray(r, a) { (null == a || a > r.length) && (a = r.length); for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e]; return n; } // Firebird_DDL
//
//
// columns and changing datatypes.
// -------
var Firebird_DDL = /*#__PURE__*/function () {
function Firebird_DDL(client, tableCompiler, pragma, connection) {
(0, _classCallCheck2["default"])(this, Firebird_DDL);
this.client = client;
this.tableCompiler = tableCompiler;
this.pragma = pragma;
this.tableNameRaw = this.tableCompiler.tableNameRaw;
this.alteredName = (0, _lodash.uniqueId)("_knex_temp_alter");
this.connection = connection;
this.formatter = client && client.config && client.config.wrapIdentifier ? client.config.wrapIdentifier : function (value) {
return value;
};
}
return (0, _createClass2["default"])(Firebird_DDL, [{
key: "tableName",
value: function tableName() {
return this.formatter(this.tableNameRaw, function (value) {
return value;
});
}
}, {
key: "getColumn",
value: function () {
var _getColumn = (0, _asyncToGenerator2["default"])(/*#__PURE__*/_regenerator["default"].mark(function _callee(column) {
var _this = this;
var currentCol;
return _regenerator["default"].wrap(function _callee$(_context) {
while (1) switch (_context.prev = _context.next) {
case 0:
currentCol = (0, _lodash.find)(this.pragma, function (col) {
return _this.client.wrapIdentifier(col.name).toLowerCase() === _this.client.wrapIdentifier(column).toLowerCase();
});
if (currentCol) {
_context.next = 3;
break;
}
throw new Error("The column ".concat(column, " is not in the ").concat(this.tableName(), " table"));
case 3:
return _context.abrupt("return", currentCol);
case 4:
case "end":
return _context.stop();
}
}, _callee, this);
}));
function getColumn(_x) {
return _getColumn.apply(this, arguments);
}
return getColumn;
}()
}, {
key: "getTableSql",
value: function getTableSql() {
var _this2 = this;
this.trx.disableProcessing();
return this.trx.raw("SELECT name, sql FROM sqlite_master WHERE type=\"table\" AND name=\"".concat(this.tableName(), "\"")).then(function (result) {
_this2.trx.enableProcessing();
return result;
});
}
}, {
key: "renameTable",
value: function () {
var _renameTable = (0, _asyncToGenerator2["default"])(/*#__PURE__*/_regenerator["default"].mark(function _callee2() {
return _regenerator["default"].wrap(function _callee2$(_context2) {
while (1) switch (_context2.prev = _context2.next) {
case 0:
return _context2.abrupt("return", this.trx.raw("ALTER TABLE \"".concat(this.tableName(), "\" RENAME TO \"").concat(this.alteredName, "\"")));
case 1:
case "end":
return _context2.stop();
}
}, _callee2, this);
}));
function renameTable() {
return _renameTable.apply(this, arguments);
}
return renameTable;
}()
}, {
key: "dropOriginal",
value: function dropOriginal() {
return this.trx.raw("DROP TABLE \"".concat(this.tableName(), "\""));
}
}, {
key: "dropTempTable",
value: function dropTempTable() {
return this.trx.raw("DROP TABLE \"".concat(this.alteredName, "\""));
}
}, {
key: "copyData",
value: function copyData() {
var _this3 = this;
return this.trx.raw("SELECT * FROM \"".concat(this.tableName(), "\"")).then(function (result) {
return _this3.insertChunked(20, _this3.alteredName, _lodash.identity, result);
});
}
}, {
key: "reinsertData",
value: function reinsertData(iterator) {
var _this4 = this;
return this.trx.raw("SELECT * FROM \"".concat(this.alteredName, "\"")).then(function (result) {
return _this4.insertChunked(20, _this4.tableName(), iterator, result);
});
}
}, {
key: "insertChunked",
value: function () {
var _insertChunked = (0, _asyncToGenerator2["default"])(/*#__PURE__*/_regenerator["default"].mark(function _callee3(chunkSize, target, iterator, result) {
var chunked, _iterator, _step, batch;
return _regenerator["default"].wrap(function _callee3$(_context3) {
while (1) switch (_context3.prev = _context3.next) {
case 0:
iterator = iterator || _lodash.identity;
chunked = (0, _lodash.chunk)(result, chunkSize);
_iterator = _createForOfIteratorHelper(chunked);
_context3.prev = 3;
_iterator.s();
case 5:
if ((_step = _iterator.n()).done) {
_context3.next = 11;
break;
}
batch = _step.value;
_context3.next = 9;
return this.trx.queryBuilder().table(target).insert((0, _lodash.map)(batch, iterator));
case 9:
_context3.next = 5;
break;
case 11:
_context3.next = 16;
break;
case 13:
_context3.prev = 13;
_context3.t0 = _context3["catch"](3);
_iterator.e(_context3.t0);
case 16:
_context3.prev = 16;
_iterator.f();
return _context3.finish(16);
case 19:
case "end":
return _context3.stop();
}
}, _callee3, this, [[3, 13, 16, 19]]);
}));
function insertChunked(_x2, _x3, _x4, _x5) {
return _insertChunked.apply(this, arguments);
}
return insertChunked;
}()
}, {
key: "createTempTable",
value: function createTempTable(createTable) {
return this.trx.raw(createTable.sql.replace(this.tableName(), this.alteredName));
}
}, {
key: "_doReplace",
value: function _doReplace(sql, from, to) {
var oneLineSql = sql.replace(/\s+/g, " ");
var matched = oneLineSql.match(/^CREATE TABLE\s+(\S+)\s*\((.*)\)/);
var tableName = matched[1];
var defs = matched[2];
if (!defs) {
throw new Error("No column definitions in this statement!");
}
var parens = 0,
args = [],
ptr = 0;
var i = 0;
var x = defs.length;
for (i = 0; i < x; i++) {
switch (defs[i]) {
case "(":
parens++;
break;
case ")":
parens--;
break;
case ",":
if (parens === 0) {
args.push(defs.slice(ptr, i));
ptr = i + 1;
}
break;
case " ":
if (ptr === i) {
ptr = i + 1;
}
break;
}
}
args.push(defs.slice(ptr, i));
var fromIdentifier = from.replace(/[`"'[\]]/g, "");
args = args.map(function (item) {
item = item.trim();
var split = item.split(" ");
var fromMatchCandidates = [new RegExp("`".concat(fromIdentifier, "`"), "i"), new RegExp("\"".concat(fromIdentifier, "\""), "i"), new RegExp("'".concat(fromIdentifier, "'"), "i"), new RegExp("\\[".concat(fromIdentifier, "\\]"), "i")];
if (fromIdentifier.match(/^\S+$/)) {
fromMatchCandidates.push(new RegExp("\\b".concat(fromIdentifier, "\\b"), "i"));
}
var doesMatchFromIdentifier = function doesMatchFromIdentifier(target) {
return (0, _lodash.some)(fromMatchCandidates, function (c) {
return target.match(c);
});
};
var replaceFromIdentifier = function replaceFromIdentifier(target) {
return fromMatchCandidates.reduce(function (result, candidate) {
return result.replace(candidate, to);
}, target);
};
if (doesMatchFromIdentifier(split[0])) {
// column definition
if (to) {
split[0] = to;
return split.join(" ");
}
return ""; // for deletions
}
// skip constraint name
var idx = /constraint/i.test(split[0]) ? 2 : 0;
// primary key and unique constraints have one or more
// columns from this table listed between (); replace
// one if it matches
if (/primary|unique/i.test(split[idx])) {
var ret = item.replace(/\(.*\)/, replaceFromIdentifier);
// If any member columns are dropped then uniqueness/pk constraint
// can not be retained
if (ret !== item && (0, _lodash.isEmpty)(to)) return "";
return ret;
}
// foreign keys have one or more columns from this table
// listed between (); replace one if it matches
// foreign keys also have a 'references' clause
// which may reference THIS table; if it does, replace
// column references in that too!
if (/foreign/.test(split[idx])) {
split = item.split(/ references /i);
// the quoted column names save us from having to do anything
// other than a straight replace here
var replacedKeySpec = replaceFromIdentifier(split[0]);
if (split[0] !== replacedKeySpec) {
// If we are removing one or more columns of a foreign
// key, then we should not retain the key at all
if ((0, _lodash.isEmpty)(to)) return "";else split[0] = replacedKeySpec;
}
if (split[1].slice(0, tableName.length) === tableName) {
// self-referential foreign key
var replacedKeyTargetSpec = split[1].replace(/\(.*\)/, replaceFromIdentifier);
if (split[1] !== replacedKeyTargetSpec) {
// If we are removing one or more columns of a foreign
// key, then we should not retain the key at all
if ((0, _lodash.isEmpty)(to)) return "";else split[1] = replacedKeyTargetSpec;
}
}
return split.join(" references ");
}
return item;
});
args = args.filter((0, _lodash.negate)(_lodash.isEmpty));
if (args.length === 0) {
throw new Error("Unable to drop last column from table");
}
return oneLineSql.replace(/\(.*\)/, function () {
return "(".concat(args.join(", "), ")");
}).replace(/,\s*([,)])/, "$1");
}
}]);
}();
var _default = exports["default"] = Firebird_DDL;
//# 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Firebird_DDL\n//\n//\n// columns and changing datatypes.\n// -------\n\nimport {\n  uniqueId,\n  find,\n  identity,\n  map,\n  some,\n  negate,\n  isEmpty,\n  chunk,\n} from \"lodash\";\n\nclass Firebird_DDL {\n  constructor(client, tableCompiler, pragma, connection) {\n    this.client = client;\n    this.tableCompiler = tableCompiler;\n    this.pragma = pragma;\n    this.tableNameRaw = this.tableCompiler.tableNameRaw;\n    this.alteredName = uniqueId(\"_knex_temp_alter\");\n    this.connection = connection;\n    this.formatter =\n      client && client.config && client.config.wrapIdentifier\n        ? client.config.wrapIdentifier\n        : (value) => value;\n  }\n\n  tableName() {\n    return this.formatter(this.tableNameRaw, (value) => value);\n  }\n\n  async getColumn(column) {\n    const currentCol = find(this.pragma, (col) => {\n      return (\n        this.client.wrapIdentifier(col.name).toLowerCase() ===\n        this.client.wrapIdentifier(column).toLowerCase()\n      );\n    });\n    if (!currentCol)\n      throw new Error(\n        `The column ${column} is not in the ${this.tableName()} table`\n      );\n    return currentCol;\n  }\n\n  getTableSql() {\n    this.trx.disableProcessing();\n    return this.trx\n      .raw(\n        `SELECT name, sql FROM sqlite_master WHERE type=\"table\" AND name=\"${this.tableName()}\"`\n      )\n      .then((result) => {\n        this.trx.enableProcessing();\n        return result;\n      });\n  }\n\n  async renameTable() {\n    return this.trx.raw(\n      `ALTER TABLE \"${this.tableName()}\" RENAME TO \"${this.alteredName}\"`\n    );\n  }\n\n  dropOriginal() {\n    return this.trx.raw(`DROP TABLE \"${this.tableName()}\"`);\n  }\n\n  dropTempTable() {\n    return this.trx.raw(`DROP TABLE \"${this.alteredName}\"`);\n  }\n\n  copyData() {\n    return this.trx\n      .raw(`SELECT * FROM \"${this.tableName()}\"`)\n      .then((result) =>\n        this.insertChunked(20, this.alteredName, identity, result)\n      );\n  }\n\n  reinsertData(iterator) {\n    return this.trx\n      .raw(`SELECT * FROM \"${this.alteredName}\"`)\n      .then((result) =>\n        this.insertChunked(20, this.tableName(), iterator, result)\n      );\n  }\n\n  async insertChunked(chunkSize, target, iterator, result) {\n    iterator = iterator || identity;\n    const chunked = chunk(result, chunkSize);\n    for (const batch of chunked) {\n      await this.trx.queryBuilder().table(target).insert(map(batch, iterator));\n    }\n  }\n\n  createTempTable(createTable) {\n    return this.trx.raw(\n      createTable.sql.replace(this.tableName(), this.alteredName)\n    );\n  }\n\n  _doReplace(sql, from, to) {\n    const oneLineSql = sql.replace(/\\s+/g, \" \");\n    const matched = oneLineSql.match(/^CREATE TABLE\\s+(\\S+)\\s*\\((.*)\\)/);\n\n    const tableName = matched[1];\n    const defs = matched[2];\n\n    if (!defs) {\n      throw new Error(\"No column definitions in this statement!\");\n    }\n\n    let parens = 0,\n      args = [],\n      ptr = 0;\n    let i = 0;\n    const x = defs.length;\n    for (i = 0; i < x; i++) {\n      switch (defs[i]) {\n        case \"(\":\n          parens++;\n          break;\n        case \")\":\n          parens--;\n          break;\n        case \",\":\n          if (parens === 0) {\n            args.push(defs.slice(ptr, i));\n            ptr = i + 1;\n          }\n          break;\n        case \" \":\n          if (ptr === i) {\n            ptr = i + 1;\n          }\n          break;\n      }\n    }\n    args.push(defs.slice(ptr, i));\n\n    const fromIdentifier = from.replace(/[`\"'[\\]]/g, \"\");\n\n    args = args.map((item) => {\n      item = item.trim();\n      let split = item.split(\" \");\n\n      const fromMatchCandidates = [\n        new RegExp(`\\`${fromIdentifier}\\``, \"i\"),\n        new RegExp(`\"${fromIdentifier}\"`, \"i\"),\n        new RegExp(`'${fromIdentifier}'`, \"i\"),\n        new RegExp(`\\\\[${fromIdentifier}\\\\]`, \"i\"),\n      ];\n      if (fromIdentifier.match(/^\\S+$/)) {\n        fromMatchCandidates.push(new RegExp(`\\\\b${fromIdentifier}\\\\b`, \"i\"));\n      }\n\n      const doesMatchFromIdentifier = (target) =>\n        some(fromMatchCandidates, (c) => target.match(c));\n\n      const replaceFromIdentifier = (target) =>\n        fromMatchCandidates.reduce(\n          (result, candidate) => result.replace(candidate, to),\n          target\n        );\n\n      if (doesMatchFromIdentifier(split[0])) {\n        // column definition\n        if (to) {\n          split[0] = to;\n          return split.join(\" \");\n        }\n        return \"\"; // for deletions\n      }\n\n      // skip constraint name\n      const idx = /constraint/i.test(split[0]) ? 2 : 0;\n\n      // primary key and unique constraints have one or more\n      // columns from this table listed between (); replace\n      // one if it matches\n      if (/primary|unique/i.test(split[idx])) {\n        const ret = item.replace(/\\(.*\\)/, replaceFromIdentifier);\n        // If any member columns are dropped then uniqueness/pk constraint\n        // can not be retained\n        if (ret !== item && isEmpty(to)) return \"\";\n        return ret;\n      }\n\n      // foreign keys have one or more columns from this table\n      // listed between (); replace one if it matches\n      // foreign keys also have a 'references' clause\n      // which may reference THIS table; if it does, replace\n      // column references in that too!\n      if (/foreign/.test(split[idx])) {\n        split = item.split(/ references /i);\n        // the quoted column names save us from having to do anything\n        // other than a straight replace here\n        const replacedKeySpec = replaceFromIdentifier(split[0]);\n\n        if (split[0] !== replacedKeySpec) {\n          // If we are removing one or more columns of a foreign\n          // key, then we should not retain the key at all\n          if (isEmpty(to)) return \"\";\n          else split[0] = replacedKeySpec;\n        }\n\n        if (split[1].slice(0, tableName.length) === tableName) {\n          // self-referential foreign key\n          const replacedKeyTargetSpec = split[1].replace(\n            /\\(.*\\)/,\n            replaceFromIdentifier\n          );\n          if (split[1] !== replacedKeyTargetSpec) {\n            // If we are removing one or more columns of a foreign\n            // key, then we should not retain the key at all\n            if (isEmpty(to)) return \"\";\n            else split[1] = replacedKeyTargetSpec;\n          }\n        }\n        return split.join(\" references \");\n      }\n\n      return item;\n    });\n\n    args = args.filter(negate(isEmpty));\n\n    if (args.length === 0) {\n      throw new Error(\"Unable to drop last column from table\");\n    }\n\n    return oneLineSql\n      .replace(/\\(.*\\)/, () => `(${args.join(\", \")})`)\n      .replace(/,\\s*([,)])/, \"$1\");\n  }\n}\n\nexport default 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