Merge pull request #135 from nm-infy/nm-infy-patch-3
Correct spellings and grammar in define_complex_object.md
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@ -4,11 +4,11 @@ Different from `SimpleObject`, `Object` must have Resolve defined for each field
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**A resolver function has to be asynchronous. The first argument has to be `&self`, second being optional `Context` and followed by field arguments.**
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Resolve is used to get the value of the field. You can query a database and return the result. **The return type of the function is the type of the field.** You can also return a `async_graphql::FieldResult` so to return an error if it occrs and error message will be send to query result.
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Resolve is used to get the value of the field. You can query a database and return the result. **The return type of the function is the type of the field.** You can also return a `async_graphql::FieldResult` so to return an error if it occurs an error message will be sent to query result.
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When querying a database, you may need a global data base connection pool.
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When creating `Schema`, you can use `SchemaBuilder::data` to setup `Schema` data, and `Context::data` to setup `Context`data.
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The following `value_from_db` function showed how to retrive a database connection from `Context`.
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The following `value_from_db` function showed how to retrieve a database connection from `Context`.
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```rust
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use async_graphql::*;
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