Logical Operators

With Orama you can combine multiple filters using logical operators like and, or, and not.

• and: this operator accepts an array of filters. All conditions must be true.
• or: this operator accepts an array of filters. At least one condition must be true.
• not: this operator accepts a single filter. The condition must be false.

All operators can be nested.

Examples

This filter will return all documents that have the category "electronics":

const results = search(db, {
  term: "phone",
  where: {
    category: "electronics"
  }
})

This filter will return all documents that have the category "electronics" and the price less than 100:

const results = search(db, {
  term: "phone",
  where: {
    category: "electronics",
    price: { lt: 100 }
  }
})

With the above filters, you can only filter applying and operator implicitly. You can also use the and operator explicitly:

const results = search(db, {
  term: "phone",
  where: {
    and: [
      { category: "electronics" },
      { price: { lt: 100 } }
    ]
  }
})

This filter will return all documents that have:

• (category = "electronics") OR (price < 100).

const results = search(db, {
  term: "phone",
  where: {
    or: [
      { category: "electronics" },
      { price: { lt: 100 } }
    ]
  }
})

This filter will return all documents that have:

• (price < 100) AND NOT (category = "electronics").

const results = search(db, {
  term: "phone",
  where: {
    and: [
      { price: { lt: 100 } },
      { not: { category: "electronics" } }
    ]
  }
})

This filter will return all documents that have:

• ( (category = "electronics") AND (price < 100) ) OR ( NOT (category = "electronics") AND (price < 100) )

const results = search(db, {
  term: "phone",
  where: {
    or: [
      {
        and: [
          { category: "electronics" },
          { price: { lt: 100 } }
        ]
      },
      {
        and: [
          { not: { category: "electronics" } },
          { price: { lt: 100 } }
        ]
      }
    ]
  }
})