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41 lines
1.2 KiB
Markdown
41 lines
1.2 KiB
Markdown
# Include Attributes When Conditional Check Passes
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The graph-like nature of Sanity means that you'll often be querying for data
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that spans a variety of document types. For instance, your front-end could be
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requesting content in the shape of a blog post, video, and podcast. Though
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there are some similarities, each of these document types will have some unique
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attributes.
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When using GROQ to query for data that spans different types of documents, you
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can use [a conditional query
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syntax](https://www.sanity.io/docs/query-cheat-sheet#64a36d80be73) to include
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type-specific attributes.
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```groq
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*[_type == 'blog' || _type == 'video' || _type == 'podcast'][]{
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title,
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'slug': slug.current,
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_type == 'blog' => {
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body,
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read_time
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},
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_type == 'video' => {
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description,
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mp4_url
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},
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_type == 'podcast' => {
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description,
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mp3_url
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}
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}
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```
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Notice that there are some attributes that are common across each type (i.e.
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`title` and `slug`). Each type then has attributes unique to its document type
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(i.e. `blog` has `body` and `read_time`).
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This conditional query syntax allows us to both define flexible schemas in
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Sanity and then query against that flexible schema.
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[source](https://www.youtube.com/watch?v=dCGPNkcTseQ)
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