Prisma•7mo ago

omit with condition

I want to only omit certain fields if a condition in the same thing I'm querying is true example:

const channels = await prisma.channel.findMany({
   where: { ownerId: userId },
   omit: { name: /* Only omit 'name' if the channel type is 1 */ },
});

const channels = await prisma.channel.findMany({
   where: { ownerId: userId },
   omit: { name: /* Only omit 'name' if the channel type is 1 */ },
});

Solution:

--- Here is the omitArray function for anyone finding this later ```ts export function omitArray<Data extends object, Keys extends keyof Data>( data: Data[],...

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7 Replies

jonfanz•7mo ago

Not currently possible. As a work around, you could put the condition inside your where clause. Query once where channel type is 1 (and omit name). Query another time where channel type is not 1 and don’t omit

WerdoxOP•7mo ago

Hmm this would be possible but it intentionally orders the list to type 1 and then type 0

jonfanz•7mo ago

Hm yes, that’s true. How large are these data sets? Would you be paginating?

WerdoxOP•7mo ago

Pretty small for now, so no paginating

jonfanz•7mo ago

You could then pull everything in and shuffle it. It’s not an ideal solution but it would at least be a proof of concept Otherwise, you could just pull data from your db and then iterate through setting name to undefined where needed Both are not great options, unfortunately

WerdoxOP•7mo ago

Hmm I need the data in the original order. I do have an omitArray function which removes a property from all indecies of an array I guess I should use that then. Thought there might be a native solution.

Solution

Werdox•7mo ago

--- Here is the omitArray function for anyone finding this later

export function omitArray<Data extends object, Keys extends keyof Data>(
   data: Data[],
   keys: Keys[]
): Omit<Data, (typeof keys)[number]>[] {
   const result = [];

   for (const obj of [...data]) {
      const modifiedObj = { ...obj };
      for (const key of keys) {
         delete modifiedObj[key];
      }

      result.push(modifiedObj);
   }

   return result;
}

export function omitArray<Data extends object, Keys extends keyof Data>(
   data: Data[],
   keys: Keys[]
): Omit<Data, (typeof keys)[number]>[] {
   const result = [];

   for (const obj of [...data]) {
      const modifiedObj = { ...obj };
      for (const key of keys) {
         delete modifiedObj[key];
      }

      result.push(modifiedObj);
   }

   return result;
}

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omit with condition