types-from-sql
Version:
143 lines • 8.82 kB
JavaScript
;
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
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case 4: _.label++; return { value: op[1], done: false };
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}
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var printInterface_1 = require("./printInterface");
var resolveTypeId_1 = require("./resolveTypeId");
var lodash_1 = __importDefault(require("lodash"));
var dataloader_1 = __importDefault(require("dataloader"));
var camelcase_keys_1 = __importDefault(require("camelcase-keys"));
var SqlAnalyzer = /** @class */ (function () {
function SqlAnalyzer(client, transformToCamelcase) {
var _this = this;
if (transformToCamelcase === void 0) { transformToCamelcase = false; }
this.client = client;
this.transformToCamelcase = transformToCamelcase;
this.nullabilityDataLoader = new dataloader_1.default(function (fields) { return __awaiter(_this, void 0, void 0, function () {
var tableIds, metadata, indexedMetadata;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
tableIds = fields.map(function (f) { return f.tableID; });
return [4 /*yield*/, this.client.query("\n SELECT c.oid as table_id,a.*,pg_catalog.pg_get_expr(ad.adbin, ad.adrelid, true) as def_value\n FROM pg_catalog.pg_attribute a\n INNER JOIN pg_catalog.pg_class c ON (a.attrelid=c.oid)\n LEFT OUTER JOIN pg_catalog.pg_attrdef ad ON (a.attrelid=ad.adrelid AND a.attnum = ad.adnum)\n WHERE NOT a.attisdropped AND c.oid in(" + tableIds + ")\n ")];
case 1:
metadata = _a.sent();
indexedMetadata = lodash_1.default(metadata.rows)
.groupBy('table_id')
.mapValues(function (x) {
return lodash_1.default.mapValues(lodash_1.default.groupBy(x, 'attnum'), function (v) { return v[0]['attnotnull']; });
})
.value();
return [2 /*return*/, fields.map(function (f) { var _a, _b; return !((_b = (_a = indexedMetadata === null || indexedMetadata === void 0 ? void 0 : indexedMetadata[f.tableID]) === null || _a === void 0 ? void 0 : _a[f.columnID]) !== null && _b !== void 0 ? _b : false); })];
}
});
}); });
}
SqlAnalyzer.prototype.getInterface = function (query, forceInterfaceName, outPath) {
return __awaiter(this, void 0, void 0, function () {
var realQuery, res, fields, name;
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
realQuery = "\n select * from (\n " + query + "\n ) q where true = false;\n";
return [4 /*yield*/, this.client.query({ text: 'BEGIN', rowMode: 'array' })];
case 1:
_a.sent();
return [4 /*yield*/, this.client
.query({ text: realQuery, rowMode: 'array' })
.finally(function () { return __awaiter(_this, void 0, void 0, function () { return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.client.query({ text: 'ROLLBACK', rowMode: 'array' })];
case 1: return [2 /*return*/, _a.sent()];
}
}); }); })];
case 2:
res = _a.sent();
return [4 /*yield*/, Promise.all(res.fields.map(function (field) { return __awaiter(_this, void 0, void 0, function () {
var _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
_a = {
name: field.name,
dataTypeName: resolveTypeId_1.resolveTypeId(field)
};
return [4 /*yield*/, this.nullabilityDataLoader.load(field)];
case 1: return [2 /*return*/, (_a.nullable = _b.sent(),
_a)];
}
});
}); })).then(function (fields) {
return fields.reduce(function (map, field) {
var _a;
return (__assign(__assign({}, map), (_a = {}, _a[field.name] = field, _a)));
}, {});
})];
case 3:
fields = _a.sent();
name = forceInterfaceName || this.getInterfaceName(query);
return [2 /*return*/, {
interface: printInterface_1.generateInterface(name, this.transformToCamelcase ? camelcase_keys_1.default(fields) : fields, outPath),
name: name,
}];
}
});
});
};
SqlAnalyzer.prototype.getInterfaceName = function (query) {
var _a, _b;
return ((_b = (_a = query.match(/@InterfaceName: (\w+)/)) === null || _a === void 0 ? void 0 : _a[1]) !== null && _b !== void 0 ? _b : lodash_1.default.uniqueId('IGeneratedSql'));
};
return SqlAnalyzer;
}());
exports.SqlAnalyzer = SqlAnalyzer;
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