@tanstack/optimistic/dist/cjs/query/extractors.cjs.map

Core optimistic updates library

{"version":3,"file":"extractors.cjs","sources":["../../../src/query/extractors.ts"],"sourcesContent":["import { evaluateFunction, isFunctionCall } from \"./functions.js\"\nimport type { AllowedFunctionName, ConditionOperand } from \"./schema.js\"\n\n/**\n * Extracts a value from a nested row structure\n * @param nestedRow The nested row structure\n * @param columnRef The column reference (may include table.column format)\n * @param mainTableAlias The main table alias to check first for columns without table reference\n * @param joinedTableAlias The joined table alias to check second for columns without table reference\n * @returns The extracted value or undefined if not found\n */\nexport function extractValueFromNestedRow(\n  nestedRow: Record<string, unknown>,\n  columnRef: string,\n  mainTableAlias?: string,\n  joinedTableAlias?: string\n): unknown {\n  // Check if it's a table.column reference\n  if (columnRef.includes(`.`)) {\n    const [tableAlias, colName] = columnRef.split(`.`) as [string, string]\n\n    // Get the table data\n    const tableData = nestedRow[tableAlias] as\n      | Record<string, unknown>\n      | null\n      | undefined\n\n    if (!tableData) {\n      return null\n    }\n\n    // Return the column value from that table\n    const value = tableData[colName]\n    return value\n  } else {\n    // If no table is specified, first try to find in the main table if provided\n    if (mainTableAlias && nestedRow[mainTableAlias]) {\n      const mainTableData = nestedRow[mainTableAlias] as Record<string, unknown>\n      if (typeof mainTableData === `object` && columnRef in mainTableData) {\n        return mainTableData[columnRef]\n      }\n    }\n\n    // Then try the joined table if provided\n    if (joinedTableAlias && nestedRow[joinedTableAlias]) {\n      const joinedTableData = nestedRow[joinedTableAlias] as Record<\n        string,\n        unknown\n      >\n      if (typeof joinedTableData === `object` && columnRef in joinedTableData) {\n        return joinedTableData[columnRef]\n      }\n    }\n\n    // If not found in main or joined table, try to find the column in any table\n    for (const [_tableAlias, tableData] of Object.entries(nestedRow)) {\n      if (\n        tableData &&\n        typeof tableData === `object` &&\n        columnRef in (tableData as Record<string, unknown>)\n      ) {\n        return (tableData as Record<string, unknown>)[columnRef]\n      }\n    }\n    return undefined\n  }\n}\n\n/**\n * Evaluates an operand against a nested row structure\n */\nexport function evaluateOperandOnNestedRow(\n  nestedRow: Record<string, unknown>,\n  operand: ConditionOperand,\n  mainTableAlias?: string,\n  joinedTableAlias?: string\n): unknown {\n  // Handle column references\n  if (typeof operand === `string` && operand.startsWith(`@`)) {\n    const columnRef = operand.substring(1)\n    return extractValueFromNestedRow(\n      nestedRow,\n      columnRef,\n      mainTableAlias,\n      joinedTableAlias\n    )\n  }\n\n  // Handle explicit column references\n  if (operand && typeof operand === `object` && `col` in operand) {\n    const colRef = (operand as { col: unknown }).col\n\n    if (typeof colRef === `string`) {\n      // First try to extract from nested row structure\n      const nestedValue = extractValueFromNestedRow(\n        nestedRow,\n        colRef,\n        mainTableAlias,\n        joinedTableAlias\n      )\n\n      // If not found in nested structure, check if it's a direct property of the row\n      // This is important for HAVING clauses that reference aggregated values\n      if (nestedValue === undefined && colRef in nestedRow) {\n        return nestedRow[colRef]\n      }\n\n      return nestedValue\n    }\n\n    return undefined\n  }\n\n  // Handle function calls\n  if (operand && typeof operand === `object` && isFunctionCall(operand)) {\n    // Get the function name (the only key in the object)\n    const functionName = Object.keys(operand)[0] as AllowedFunctionName\n    // Get the arguments using type assertion with specific function name\n    const args = (operand as any)[functionName]\n\n    // If the arguments are a reference or another expression, evaluate them first\n    const evaluatedArgs = Array.isArray(args)\n      ? args.map((arg) =>\n          evaluateOperandOnNestedRow(\n            nestedRow,\n            arg as ConditionOperand,\n            mainTableAlias,\n            joinedTableAlias\n          )\n        )\n      : evaluateOperandOnNestedRow(\n          nestedRow,\n          args as ConditionOperand,\n          mainTableAlias,\n          joinedTableAlias\n        )\n\n    // Call the function with the evaluated arguments\n    return evaluateFunction(\n      functionName,\n      evaluatedArgs as ConditionOperand | Array<ConditionOperand>\n    )\n  }\n\n  // Handle explicit literals\n  if (operand && typeof operand === `object` && `value` in operand) {\n    return (operand as { value: unknown }).value\n  }\n\n  // Handle literal values\n  return operand\n}\n\n/**\n * Extracts a join key value from a row based on the operand\n * @param row The data row (not nested)\n * @param operand The operand to extract the key from\n * @param defaultTableAlias The default table alias\n * @returns The extracted key value\n */\nexport function extractJoinKey<T extends Record<string, unknown>>(\n  row: T,\n  operand: ConditionOperand,\n  defaultTableAlias?: string\n): unknown {\n  let keyValue: unknown\n\n  // Handle column references (e.g., \"@orders.id\" or \"@id\")\n  if (typeof operand === `string` && operand.startsWith(`@`)) {\n    const columnRef = operand.substring(1)\n\n    // If it contains a dot, extract the table and column\n    if (columnRef.includes(`.`)) {\n      const [tableAlias, colName] = columnRef.split(`.`) as [string, string]\n      // If this is referencing the current table, extract from row directly\n      if (tableAlias === defaultTableAlias) {\n        keyValue = row[colName]\n      } else {\n        // This might be a column from another table, return undefined\n        keyValue = undefined\n      }\n    } else {\n      // No table specified, look directly in the row\n      keyValue = row[columnRef]\n    }\n  } else if (operand && typeof operand === `object` && `col` in operand) {\n    // Handle explicit column references like { col: \"orders.id\" } or { col: \"id\" }\n    const colRef = (operand as { col: unknown }).col\n\n    if (typeof colRef === `string`) {\n      if (colRef.includes(`.`)) {\n        const [tableAlias, colName] = colRef.split(`.`) as [string, string]\n        // If this is referencing the current table, extract from row directly\n        if (tableAlias === defaultTableAlias) {\n          keyValue = row[colName]\n        } else {\n          // This might be a column from another table, return undefined\n          keyValue = undefined\n        }\n      } else {\n        // No table specified, look directly in the row\n        keyValue = row[colRef]\n      }\n    }\n  } else {\n    // Handle literals or other types\n    keyValue = operand\n  }\n\n  return 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