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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 | 3x 3x 3x 3x 3x 3x 126x 514x 514x 514x 514x 4858x 4396x 462x 4858x 4858x 4858x 514x 514x 4858x 514x 514x 514x 1x 1x 2x 2x 2x 1x 514x 514x 514x 4858x 396x 396x 514x 514x 514x 4858x 4858x 514x 4858x 514x 126x 514x 514x 126x 169x 169x 1x 168x 126x 514x 514x 126x 500x 500x 1x 499x 126x 103x 126x 126x 514x 514x 514x 396x 396x 514x 126x 1489x 1489x 1489x 1489x 1321x 1489x 126x 45x 45x 45x 988x 988x 988x 1x 987x 987x 987x 987x 153x 153x 153x 153x 153x 987x 987x 2x 1x 1x 986x 43x 43x 152x 43x 126x 219x 219x 1489x 1489x 1489x 1489x 1321x 1321x 281x 281x 1040x 1040x 739x 739x 168x 168x 168x 582x 582x 2973x 2973x 582x 582x 582x 582x 582x 219x 126x 219x 219x 219x 219x 219x 219x 126x 65x 65x 65x 65x 65x 126x 559x 38x 559x 126x 559x 559x 559x 559x 366x 366x 366x 366x 559x 559x 332x 332x 559x 559x 366x 366x 559x 557x 557x 126x 45x 45x 45x 43x 43x 152x 43x 43x 152x 152x 152x 152x 43x 43x 43x 43x 43x 43x 43x 43x 43x 43x 43x 219x 219x 219x 219x 65x 65x 65x 219x 219x 65x 65x 219x 582x 582x 582x 582x 582x 582x 262x 320x 581x 581x 581x 11x 570x 570x 570x 559x 43x 43x 65x 43x 43x 126x 10x 5x 5x 5x 126x 17x 2x 15x 15x 15x 4x 11x 126x 8x 3x 5x 126x 9x 3x 6x 126x 514x 514x 3x | "use strict"; var __importDefault = (this && this.__importDefault) || function (mod) { return (mod && mod.__esModule) ? mod : { "default": mod }; }; Object.defineProperty(exports, "__esModule", { value: true }); exports.createCore = void 0; const camelcase_1 = __importDefault(require("camelcase")); const createCore = ({ entities: externalEntities }) => { const entities = externalEntities.map((d) => { const tableName = d.tableName; const displayName = d.displayName || (0, camelcase_1.default)(d.tableName); const collectionDisplayName = d.collectionDisplayName || `${displayName}s`; const columns = (typeof d.columns === 'function' ? d.columns() : d.columns).map((d) => { if (typeof d === 'string') { return { column: d, property: (0, camelcase_1.default)(d), primaryKey: false }; } return Object.assign({ column: d.column, property: d.property || (0, camelcase_1.default)(d.column), primaryKey: d.primaryKey || false }, (d.references ? { references: d.references } : {})); }); const propertyNames = columns.map((x) => x.property); const columnNames = columns.map((x) => x.column); const prefixedColumnNames = columnNames.map((col) => `${tableName}#${col}`); const Model = d.Model; const Collection = d.Collection; const pkColumnsData = columns.filter((x) => x.primaryKey); const _primaryKeys = pkColumnsData.map((x) => x.column); const primaryKeys = _primaryKeys.length > 0 ? _primaryKeys : ['id']; const getPkId = (model) => { let id = ''; for (let i = 0; i < primaryKeys.length; i++) { const part = model[primaryKeys[i]]; Eif (part !== void 0 && part !== null) { id += String(part); } } return id; }; const references = {}; const referencesEntries = []; for (const col of columns) { if (col.references) { references[col.property] = col.references; referencesEntries.push({ property: col.property, ModelClass: col.references }); } } const columnToPropertyMap = new Map(); const propertyToColumnMap = new Map(); for (let i = 0; i < columnNames.length; i++) { columnToPropertyMap.set(columnNames[i], propertyNames[i]); propertyToColumnMap.set(propertyNames[i], columnNames[i]); } const selectColumnsClause = prefixedColumnNames .map((prefixed, index) => `"${tableName}".${columnNames[index]} as "${prefixed}"`) .join(', '); return { tableName, displayName, collectionDisplayName, columns, propertyNames, Model, Collection, columnNames, prefixedColumnNames, primaryKeys, references, selectColumnsClause, getPkId, columnToPropertyMap, propertyToColumnMap, referencesEntries }; }); const tableNameToEntityMap = entities.reduce((map, entity) => { map.set(entity.tableName, entity); return map; }, new Map()); const getEntityByTableName = (tableName) => { const entity = tableNameToEntityMap.get(tableName); if (!entity) { throw new Error(`Could not find entity for table ${tableName}`); } return entity; }; const modelToEntityMap = entities.reduce((map, entity) => { map.set(entity.Model, entity); return map; }, new Map()); const getEntityByModelClass = (Model) => { const entity = modelToEntityMap.get(Model); if (!entity) { throw new Error(`Could not find entity for class ${Model}`); } return entity; }; const getEntityByModel = (model) => { return getEntityByModelClass(model.constructor); }; const entityReferencePlans = new Map(); for (let i = 0; i < entities.length; i++) { const entity = entities[i]; const plans = new Array(entity.referencesEntries.length); for (let j = 0; j < entity.referencesEntries.length; j++) { const ref = entity.referencesEntries[j]; plans[j] = { property: ref.property, targetEntity: getEntityByModelClass(ref.ModelClass) }; } entityReferencePlans.set(entity, plans); } const getPkIdFromRow = (row, primaryKeyRowKeys) => { let id = ''; for (let i = 0; i < primaryKeyRowKeys.length; i++) { const part = row[primaryKeyRowKeys[i]]; if (part !== void 0 && part !== null) { id += String(part); } } return id; }; const buildEntityRowPlans = (sampleRow) => { const plansByTable = new Map(); const tableOrder = []; for (const text in sampleRow) { Iif (!Object.prototype.hasOwnProperty.call(sampleRow, text)) { continue; } const hashIndex = text.indexOf('#'); if (hashIndex === -1) { throw new Error('Column names must be namespaced to table'); } const tableName = text.substring(0, hashIndex); const column = text.substring(hashIndex + 1); let plan = plansByTable.get(tableName); if (!plan) { const entity = getEntityByTableName(tableName); const primaryKeyRowKeys = entity.primaryKeys.map((pk) => `${tableName}#${pk}`); plan = { entity, columnPlans: [], primaryKeyRowKeys }; plansByTable.set(tableName, plan); tableOrder.push(tableName); } let propertyName = plan.entity.columnToPropertyMap.get(column); if (!propertyName) { if (column.startsWith('meta_')) { propertyName = (0, camelcase_1.default)(column); } else { throw Error(`No property name for "${column}" in business object "${plan.entity.displayName}". Non-spec'd columns must begin with "meta_".`); } } plan.columnPlans.push({ rowKey: text, propertyName }); } const orderedPlans = new Array(tableOrder.length); for (let i = 0; i < tableOrder.length; i++) { orderedPlans[i] = plansByTable.get(tableOrder[i]); } return orderedPlans; }; const materializeModelsFromRow = (row, entityRowPlans, rootScopedModelsByEntity, rowModels, rowModelPkIds, rowCreatedWithPkIndexes) => { rowCreatedWithPkIndexes.length = 0; for (let i = 0; i < entityRowPlans.length; i++) { const plan = entityRowPlans[i]; const pkId = getPkIdFromRow(row, plan.primaryKeyRowKeys); rowModelPkIds[i] = pkId; if (pkId) { let modelsForEntity = rootScopedModelsByEntity.get(plan.entity); if (!modelsForEntity) { modelsForEntity = new Map(); rootScopedModelsByEntity.set(plan.entity, modelsForEntity); } else { const existing = modelsForEntity.get(pkId); if (existing) { rowModels[i] = existing; continue; } } } else Eif (i !== 0) { // No primary key means this is typically an outer-joined null row. // Skip model construction for non-root entities since it cannot link. rowModels[i] = void 0; continue; } const props = {}; for (let j = 0; j < plan.columnPlans.length; j++) { const columnPlan = plan.columnPlans[j]; props[columnPlan.propertyName] = row[columnPlan.rowKey]; } const model = new plan.entity.Model(props); Eif (pkId) { // modelsForEntity is guaranteed to be initialized above for pk rows. rootScopedModelsByEntity.get(plan.entity).set(pkId, model); rowCreatedWithPkIndexes.push(i); } rowModels[i] = model; } return rowModels[0]; }; const getRootScopeKey = (row, rootEntity, rootPrimaryKeys) => { let rootScopeKey = ''; for (let i = 0; i < rootPrimaryKeys.length; i++) { Iif (i > 0) { rootScopeKey += '@'; } const value = row[`${rootEntity.tableName}#${rootPrimaryKeys[i]}`]; rootScopeKey += value === void 0 || value === null ? '' : String(value); } return rootScopeKey; }; const ensureRootScopeState = (rootScopeKey, rootScopeStateByKey) => { let state = rootScopeStateByKey.get(rootScopeKey); Eif (!state) { state = { modelsByEntity: new Map() }; rootScopeStateByKey.set(rootScopeKey, state); } return state; }; const ensureCollectionMembership = (rootScopeState) => { if (!rootScopeState.collectionMembership) { rootScopeState.collectionMembership = new WeakMap(); } return rootScopeState.collectionMembership; }; const linkSourceToTarget = ({ sourceEntity, sourceModel, sourceModelPkId, targetEntity, targetModel, collectionMembership }) => { sourceModel[targetEntity.displayName] = targetModel; const collectionKey = sourceEntity.collectionDisplayName; let collection = targetModel[collectionKey]; if (!collection) { const Collection = sourceEntity.Collection; const createdCollection = new Collection({ models: [] }); // Keep ORM back-reference collections out of default JSON serialization. Object.defineProperty(targetModel, collectionKey, { value: createdCollection, writable: true, configurable: true, enumerable: false }); collection = createdCollection; } let byCollection = collectionMembership.get(targetModel); if (!byCollection) { byCollection = new Map(); collectionMembership.set(targetModel, byCollection); } let memberIds = byCollection.get(sourceEntity); if (!memberIds) { memberIds = new Set(); byCollection.set(sourceEntity, memberIds); } if (!memberIds.has(sourceModelPkId)) { collection.models.push(sourceModel); memberIds.add(sourceModelPkId); } }; /* * createFromDatabase architecture: * 1) Compile row plans once (column -> property mapping per entity/table). * 2) Materialize models per row with scoped de-duplication by root scope key. * 3) Index models by root scope + entity + entity primary key. * 4) Link refs incrementally as new models appear. * 5) Return root models in first-seen root scope order. */ const createFromDatabase = (rows) => { var _a; const result = Array.isArray(rows) ? rows : [rows]; const len = result.length; const entityRowPlans = buildEntityRowPlans(result[0]); const selectedEntities = new Set(); for (let i = 0; i < entityRowPlans.length; i++) { selectedEntities.add(entityRowPlans[i].entity); } const applicableRefPlans = new Map(); for (let i = 0; i < entityRowPlans.length; i++) { const entity = entityRowPlans[i].entity; const refs = entityReferencePlans.get(entity) || []; const filteredRefs = refs.filter((ref) => selectedEntities.has(ref.targetEntity)); applicableRefPlans.set(entity, filteredRefs); } const rootEntity = entityRowPlans[0].entity; const rootPrimaryKeys = rootEntity.primaryKeys; const rootScopeOrder = []; const rootModelsByScopeKey = new Map(); const rootScopeStateByKey = new Map(); let currentRootScopeKey = void 0; let currentRootScopeState = void 0; const rowModels = new Array(entityRowPlans.length); const rowModelPkIds = new Array(entityRowPlans.length); const rowCreatedWithPkIndexes = []; // Phase 1: materialize and index model instances by root scope + entity. for (let i = 0; i < len; i++) { const row = result[i]; const rootScopeKey = getRootScopeKey(row, rootEntity, rootPrimaryKeys); let rootScopeState = currentRootScopeState; if (!rootScopeState || rootScopeKey !== currentRootScopeKey) { rootScopeState = ensureRootScopeState(rootScopeKey, rootScopeStateByKey); currentRootScopeKey = rootScopeKey; currentRootScopeState = rootScopeState; } const rootModel = materializeModelsFromRow(row, entityRowPlans, rootScopeState.modelsByEntity, rowModels, rowModelPkIds, rowCreatedWithPkIndexes); if (!rootModelsByScopeKey.has(rootScopeKey)) { rootScopeOrder.push(rootScopeKey); rootModelsByScopeKey.set(rootScopeKey, rootModel); } for (let c = 0; c < rowCreatedWithPkIndexes.length; c++) { const j = rowCreatedWithPkIndexes[c]; const sourceModel = rowModels[j]; const sourceModelPkId = rowModelPkIds[j]; const sourceEntity = entityRowPlans[j].entity; const refs = applicableRefPlans.get(sourceEntity); if (!refs || refs.length === 0) { continue; } for (let r = 0; r < refs.length; r++) { const ref = refs[r]; const refId = sourceModel[ref.property]; if (refId == null) { continue; } const targetPkId = String(refId); const target = (_a = rootScopeState.modelsByEntity .get(ref.targetEntity)) === null || _a === void 0 ? void 0 : _a.get(targetPkId); if (target) { linkSourceToTarget({ sourceEntity, sourceModel, sourceModelPkId, targetEntity: ref.targetEntity, targetModel: target, collectionMembership: ensureCollectionMembership(rootScopeState) }); } } } } const models = new Array(rootScopeOrder.length); for (let i = 0; i < rootScopeOrder.length; i++) { models[i] = rootModelsByScopeKey.get(rootScopeOrder[i]); } const Collection = getEntityByModel(models[0]).Collection; return new Collection({ models }); }; const createAnyFromDatabase = (rows, rootKey) => { if (!rows || !rows.length) { const Collection = typeof rootKey === 'string' ? getEntityByTableName(rootKey).Collection : getEntityByModelClass(rootKey).Collection; return new Collection({ models: [] }); } return createFromDatabase(rows); }; const createOneFromDatabase = (rows) => { if (!rows || !rows.length) { throw Error('Did not get one.'); } const collection = createFromDatabase(rows); Iif (!collection || !collection.models || collection.models.length === 0) { throw Error('Did not get one.'); } else if (collection.models.length > 1) { throw Error('Got more than one.'); } return collection.models[0]; }; const createOneOrNoneFromDatabase = (rows) => { if (!rows || !rows.length) { return void 0; } return createOneFromDatabase(rows); }; const createManyFromDatabase = (rows) => { if (!rows || !rows.length) { throw Error('Did not get at least one.'); } return createFromDatabase(rows); }; return { getEntityByModel, getEntityByTableName, createFromDatabase, createAnyFromDatabase, createOneFromDatabase, createOneOrNoneFromDatabase, createManyFromDatabase, tables: entities.reduce((accum, data) => { accum[data.displayName] = { columns: data.selectColumnsClause }; return accum; }, {}) }; }; exports.createCore = createCore; |