### Eine Engine erstellen { #create-an-engine }

Eine SQLModel-`engine` (darunter ist es tatsächlich eine SQLAlchemy-`engine`) ist das, was die **Verbindungen** zur Datenbank hält.

Sie hätten **ein einziges `engine`-Objekt** für Ihren gesamten Code, um sich mit derselben Datenbank zu verbinden.

  previous_end_line = None
  for url, lines in result_store_links.items():
    lines['status'] = InvokeStatus.passed  # default to passed
    start_line = lines['start']
    end_line = lines.get('end', lines.get('next_url', len(log_lines))) - 1
    k = end_line
    while k > start_line:
      backtrack_line = log_lines[k]
      build_failed = backtrack_line.startswith(FAILED_BUILD_LINE)

  testImplementation(projects.mockwebserver3)
  testImplementation(projects.mockwebserver3Junit5)

  testImplementation(libs.junit.jupiter.api)
  testRuntimeOnly(libs.junit.jupiter.engine)
  testRuntimeOnly(libs.junit.platform.launcher)
}

application {
  mainClass = "okhttp3.modules.Main"
  mainModule = "okhttp3.modules"
}

jlinkApplication {
  stripDebug = true

OkCurl
======

_A curl for the next-generation web._

OkCurl is an OkHttp-backed curl clone which allows you to test OkHttp's HTTP engine (including
HTTP/2) against web servers.

To run locally, make sure you have GRAALVM_HOME set and run

```bash
./okcurl

* `Field(index=True)` 会告诉 SQLModel 应该为此列创建一个 **SQL 索引**，这样在读取按此列过滤的数据时，程序能在数据库中进行更快的查找。

    SQLModel 会知道声明为 `str` 的内容将是类型为 `TEXT` （或 `VARCHAR` ，具体取决于数据库）的 SQL 列。

### 创建引擎（Engine）

SQLModel 的引擎 `engine`（实际上它是一个 SQLAlchemy `engine` ）是用来与数据库**保持连接**的。

您只需构建**一个 `engine`**，来让您的所有代码连接到同一个数据库。

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[14:18] hl[14:15,17:18] *}

            // discard existing options configuration and add a deprecation warning.  Just set the existing options.
            (this.testFramework.options as JUnitPlatformOptions).includeEngines("cross-version-test-engine")
        }
        if (executer == defaultExecuter) {
            // The test task with the default executer runs with 'check'
            tasks.named("check").configure { dependsOn(testTask) }
        }
    }
}

			Value:         "",
			HiddenIfEmpty: true,
		},
		config.KV{
			Key:           AuthToken,
			Value:         "",
			HiddenIfEmpty: true,
		},
	}
)

// Args opa general purpose policy engine configuration.
type Args struct {
	URL         *xnet.URL             `json:"url"`
	AuthToken   string                `json:"authToken"`
	Transport   http.RoundTripper     `json:"-"`

  }
}

dependencies {
  api(projects.okhttp)
  api(projects.mockwebserver3)
  api(libs.junit.jupiter.api)
  compileOnly(libs.animalsniffer.annotations)

  testRuntimeOnly(libs.junit.jupiter.engine)
  testImplementation(libs.kotlin.junit5)
  testImplementation(projects.okhttpTestingSupport)
  testImplementation(libs.assertk)
}

mavenPublishing {
  configure(KotlinJvm(javadocJar = JavadocJar.Empty()))

* «the deployment»: «das Deployment»
* «the dict»: «das Dict»
* «the dictionary»: «das Dictionary»
* «the enumeration»: «die Enumeration»
* «the enum»: «das Enum»
* «the engine»: «die Engine»
* «the error response»: «die Error-Response»
* «the event»: «das Event»
* «the exception»: «die Exception»
* «the exception handler»: «der Exceptionhandler»
* «the form model»: «das Formularmodell»

dependencies {
  api(projects.okhttp)

  testImplementation(projects.okhttpTestingSupport)
  testImplementation(libs.junit.jupiter.api)
  testImplementation(libs.junit.jupiter.params)
  testImplementation(libs.junit.jupiter.engine)
  testImplementation(libs.assertk)
  testImplementation(libs.testcontainers)
  testImplementation(libs.mockserver)
  testImplementation(libs.mockserver.client)
  testImplementation(libs.testcontainers.junit5)