[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["難以理解","hardToUnderstand","thumb-down"],["資訊或程式碼範例有誤","incorrectInformationOrSampleCode","thumb-down"],["缺少我需要的資訊/範例","missingTheInformationSamplesINeed","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間：2025-09-04 (世界標準時間)。"],[[["\u003cp\u003eThe \u003ccode\u003eSortExpression\u003c/code\u003e class enables customization of search result sorting using an expression.\u003c/p\u003e\n"],["\u003cp\u003eIt can be used with first-generation runtimes and is applicable when upgrading to second-generation runtimes.\u003c/p\u003e\n"],["\u003cp\u003eThe class constructor accepts \u003ccode\u003eexpression\u003c/code\u003e, \u003ccode\u003edirection\u003c/code\u003e (\u003ccode\u003eASCENDING\u003c/code\u003e or \u003ccode\u003eDESCENDING\u003c/code\u003e), and \u003ccode\u003edefault_value\u003c/code\u003e to define how results are sorted.\u003c/p\u003e\n"],["\u003cp\u003eProperties \u003ccode\u003eexpression\u003c/code\u003e, \u003ccode\u003edirection\u003c/code\u003e, and \u003ccode\u003edefault_value\u003c/code\u003e can be retrieved from an instance of \u003ccode\u003eSortExpression\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,["# The SortExpression Class\n\nClass `SortExpression` allows you to customize how your search results are sorted.\n| This API is supported for first-generation runtimes and can be used when [upgrading to corresponding second-generation runtimes](/appengine/docs/standard/\n| python3\n|\n| /services/access). If you are updating to the App Engine Python 3 runtime, refer to the [migration guide](/appengine/migration-center/standard/migrate-to-second-gen/python-differences) to learn about your migration options for legacy bundled services.\n\n`SortExpression` is defined in the `google.appengine.api.search` module.\n\nConstructor\n-----------\n\nThe constructor for class `SortExpression` is defined as follows:\n\n\nclass SortExpression(expression=None, direction=DESCENDING, default_value=None)\n\n:\n Sort results by the specified scoring expression.\n\n:\n\n Arguments\n\n expression\n\n : An expression to be evaluated when sorting results for each matching document. The expression can simply be a field name, or some compound expression such as\n `_score + count(likes) * 0.1`\n which will add the score from a scorer to a count of the values of a\n `likes` field weighted by a factor of 0.1.\n\n direction\n\n : The direction to sort the search results, either ASCENDING or DESCENDING.\n\n default_value\n\n : The default value of the expression, if no field is present and cannot be calculated for a document. A text value must be specified for text sorts. A numeric value must be specified for numeric sorts.\n\n Result value\n\n : A new instance of class `SortExpression`.\n\n Exceptions\n\n TypeError\n\n : If any of the parameters have an invalid type, or an unknown attribute is passed.\n\n ValueError\n\n : If any parameter has an invalid value.\n\n \u003cbr /\u003e\n\nProperties\n----------\n\nAn instance of class `SortExpression` has the following properties:\n\nexpression\n\n: Returns the expression used to sort matched results.\n\ndirection\n\n: Returns the direction of sort expression: `ASCENDING` or `DESCENDING`.\n\ndefault_value\n\n: Returns a default value for the expression if no other value could be computed."]]
