Initial commit

node_modules/mongodb/lib/operations/drop_index.js

@@ -0,0 +1,42 @@
+'use strict';
+
+const Aspect = require('./operation').Aspect;
+const defineAspects = require('./operation').defineAspects;
+const CommandOperation = require('./command');
+const applyWriteConcern = require('../utils').applyWriteConcern;
+const handleCallback = require('../utils').handleCallback;
+
+class DropIndexOperation extends CommandOperation {
+  constructor(collection, indexName, options) {
+    super(collection.s.db, options, collection);
+
+    this.collection = collection;
+    this.indexName = indexName;
+  }
+
+  _buildCommand() {
+    const collection = this.collection;
+    const indexName = this.indexName;
+    const options = this.options;
+
+    let cmd = { dropIndexes: collection.collectionName, index: indexName };
+
+    // Decorate command with writeConcern if supported
+    cmd = applyWriteConcern(cmd, { db: collection.s.db, collection }, options);
+
+    return cmd;
+  }
+
+  execute(callback) {
+    // Execute command
+    super.execute((err, result) => {
+      if (typeof callback !== 'function') return;
+      if (err) return handleCallback(callback, err, null);
+      handleCallback(callback, null, result);
+    });
+  }
+}
+
+defineAspects(DropIndexOperation, Aspect.WRITE_OPERATION);
+
+module.exports = DropIndexOperation;