surrealdb-core 3.2.1

A scalable, distributed, collaborative, document-graph database, for the realtime web
Documentation 
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use surrealdb_types::{SqlFormat, ToSql, write_sql};

use super::AlterKind;
use crate::fmt::{CoverStmts, Fmt, QuoteStr};
use crate::sql::analyzer_function::fmt_analyzer_function;
use crate::sql::filter::Filter;
use crate::sql::tokenizer::{Tokenizer, write_tokenizers_sql};
use crate::sql::{Expr, Literal};

#[derive(Clone, Debug, Eq, PartialEq)]
#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
/// AST node for `ALTER ANALYZER`.
pub struct AlterAnalyzerStatement {
	pub name: Expr,
	pub if_exists: bool,
	pub function: AlterKind<String>,
	pub tokenizers: AlterKind<Vec<Tokenizer>>,
	pub filters: AlterKind<Vec<Filter>>,
	pub comment: AlterKind<String>,
}

impl Default for AlterAnalyzerStatement {
	fn default() -> Self {
		Self {
			name: Expr::Literal(Literal::None),
			if_exists: false,
			function: AlterKind::None,
			tokenizers: AlterKind::None,
			filters: AlterKind::None,
			comment: AlterKind::None,
		}
	}
}

impl ToSql for AlterAnalyzerStatement {
	fn fmt_sql(&self, f: &mut String, fmt: SqlFormat) {
		write_sql!(f, fmt, "ALTER ANALYZER");
		if self.if_exists {
			write_sql!(f, fmt, " IF EXISTS");
		}
		write_sql!(f, fmt, " {}", CoverStmts(&self.name));

		match self.function {
			AlterKind::Set(ref v) => fmt_analyzer_function(f, fmt, v),
			AlterKind::Drop => f.push_str(" DROP FUNCTION"),
			AlterKind::None => {}
		}

		match self.tokenizers {
			AlterKind::Set(ref v) => {
				write_sql!(f, fmt, " TOKENIZERS ");
				write_tokenizers_sql(f, fmt, v.iter().copied());
			}
			AlterKind::Drop => f.push_str(" DROP TOKENIZERS"),
			AlterKind::None => {}
		}

		match self.filters {
			AlterKind::Set(ref v) => {
				write_sql!(f, fmt, " FILTERS {}", Fmt::comma_separated(v.iter()));
			}
			AlterKind::Drop => f.push_str(" DROP FILTERS"),
			AlterKind::None => {}
		}

		match self.comment {
			AlterKind::Set(ref v) => write_sql!(f, fmt, " COMMENT {}", QuoteStr(v)),
			AlterKind::Drop => f.push_str(" DROP COMMENT"),
			AlterKind::None => {}
		}
	}
}

impl From<AlterAnalyzerStatement> for crate::expr::statements::alter::AlterAnalyzerStatement {
	fn from(v: AlterAnalyzerStatement) -> Self {
		crate::expr::statements::alter::AlterAnalyzerStatement {
			name: v.name.into(),
			if_exists: v.if_exists,
			function: v.function.into(),
			tokenizers: match v.tokenizers {
				AlterKind::Set(x) => crate::expr::statements::alter::AlterKind::Set(
					x.into_iter().map(Into::into).collect(),
				),
				AlterKind::Drop => crate::expr::statements::alter::AlterKind::Drop,
				AlterKind::None => crate::expr::statements::alter::AlterKind::None,
			},
			filters: match v.filters {
				AlterKind::Set(x) => crate::expr::statements::alter::AlterKind::Set(
					x.into_iter().map(Into::into).collect(),
				),
				AlterKind::Drop => crate::expr::statements::alter::AlterKind::Drop,
				AlterKind::None => crate::expr::statements::alter::AlterKind::None,
			},
			comment: v.comment.into(),
		}
	}
}

impl From<crate::expr::statements::alter::AlterAnalyzerStatement> for AlterAnalyzerStatement {
	fn from(v: crate::expr::statements::alter::AlterAnalyzerStatement) -> Self {
		AlterAnalyzerStatement {
			name: v.name.into(),
			if_exists: v.if_exists,
			function: v.function.into(),
			tokenizers: match v.tokenizers {
				crate::expr::statements::alter::AlterKind::Set(x) => {
					AlterKind::Set(x.into_iter().map(Into::into).collect())
				}
				crate::expr::statements::alter::AlterKind::Drop => AlterKind::Drop,
				crate::expr::statements::alter::AlterKind::None => AlterKind::None,
			},
			filters: match v.filters {
				crate::expr::statements::alter::AlterKind::Set(x) => {
					AlterKind::Set(x.into_iter().map(Into::into).collect())
				}
				crate::expr::statements::alter::AlterKind::Drop => AlterKind::Drop,
				crate::expr::statements::alter::AlterKind::None => AlterKind::None,
			},
			comment: v.comment.into(),
		}
	}
}