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fix: ensure cursor readPreference is applied to find operations #2751

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merged 1 commit into from
Mar 25, 2021
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fix: ensure cursor readPreference is applied to find operations #2751

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3 changes: 3 additions & 0 deletions lib/operations/find.js
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,9 @@ class FindOperation extends OperationBase {
// copied from `CommandOperationV2`, to be subclassed in the future
this.server = server;

// updates readPreference if setReadPreference was called on the cursor
this.readPreference = ReadPreference.resolve(this, this.options);

if (typeof this.cmd.allowDiskUse !== 'undefined' && maxWireVersion(server) < 4) {
callback(new MongoError('The `allowDiskUse` option is not supported on MongoDB < 3.2'));
return;
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