更新文档

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// Update a document
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import { MongoClient } from "mongodb";
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// Replace the uri string with your MongoDB deployment's connection string
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const uri = "<connection string uri>";
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const client = new MongoClient(uri);
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async function run() {
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  try {
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    const database = client.db("sample_mflix");
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    const movies = database.collection("movies");
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    // Create a filter for movies with the title "Random Harvest"
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    const filter = { title: "Random Harvest" };
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    /* Set the upsert option to insert a document if no documents match
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    the filter */
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    const options = { upsert: true };
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    // Specify the update to set a value for the plot field
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    const updateDoc = {
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      $set: {
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        plot: `A harvest of random numbers, such as: ${Math.random()}`
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      },
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    };
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    // Update the first document that matches the filter
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    const result = await movies.updateOne(filter, updateDoc, options);
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    // Print the number of matching and modified documents
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    console.log(
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      `${result.matchedCount} document(s) matched the filter, updated ${result.modifiedCount} document(s)`,
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    );
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  } finally {
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    // Close the connection after the operation completes
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    await client.close();
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  }
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}
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// Run the program and print any thrown errors
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run().catch(console.dir);

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// Update a document
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import { MongoClient } from "mongodb";
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// Replace the uri string with your MongoDB deployment's connection string
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const uri = "<connection string uri>";
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const client = new MongoClient(uri);
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// Define the Movie interface
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interface Movie {
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  plot: string;
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  title: string;
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}
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async function run() {
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  try {
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    const database = client.db("sample_mflix");
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    const movies = database.collection<Movie>("movies");
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    /* Update a document that has the title "Random Harvest" to have a
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    plot field with the specified value */
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    const result = await movies.updateOne(
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      { title: "Random Harvest" },
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      {
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        $set: {
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          plot: `A harvest of random numbers, such as: ${Math.random()}`,
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        },
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      },
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      /* Set the upsert option to insert a document if no documents
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      match the filter */
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      { upsert: true }
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    );
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    // Print the number of matching and modified documents
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    console.log(
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      `${result.matchedCount} document(s) matched the filter, updated ${result.modifiedCount} document(s)`
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    );
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  } finally {
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    // Close the connection after the operation completes
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    await client.close();
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  }
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}
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// Run the program and print any thrown errors
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run().catch(console.dir);