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# Copyright Thomas T. Jarløv (TTJ)
import std/[macros]
import waterpark/postgres
import ./sql_query_core
{.push raises: [].}
## Default pool for query execution helpers. Call `initSqlPool` once at startup.
var pg: PostgresPool
proc initSqlPool*(pool: PostgresPool) {.inline.} =
pg = pool
proc logError(message: string) =
echo "\e[31mError:\e[0m " & message
proc logWarn(message: string) =
echo "\e[33mWarning:\e[0m " & message
#
# Query sugar + macros + templates (to-be-macros)
#
macro selectValue*(
table: static string,
select: untyped,
joins: untyped = nil,
where: untyped = nil,
order: untyped = nil,
limit: int = 0,
offset: int = 0,
groupBy: untyped = nil,
ignoreDeleteMarker: bool = false,
db: DbConn = nil
): untyped =
result = quote do:
var selectResult: string
try:
var query: QueryResultSelect = selectQuery(`table`, @[`select`], `joins`, `where`, `order`, `limit`, `offset`, `groupBy`, `ignoreDeleteMarker`)
if `db` != nil:
selectResult = getValue(`db`, sql(query.sql), query.params)
else:
pg.withconnection conn:
selectResult = getValue(conn, sql(query.sql), query.params)
except SqlValidationError as e:
logError(e.msg)
except SqlQueryWarning as e:
logError(e.msg)
except DbError as e:
logError(e.msg)
selectResult
macro selectRow*(
table: static string,
select: untyped,
joins: untyped = nil,
where: untyped = nil,
order: untyped = nil,
limit: int = 0,
offset: int = 0,
groupBy: untyped = nil,
ignoreDeleteMarker: bool = false,
db: DbConn = nil
): untyped =
result = quote do:
var selectResult: RowSelectionData
selectResult.table = `table`
selectResult.row = @[]
try:
var query: QueryResultSelect = selectQuery(`table`, `select`, `joins`, `where`, `order`, `limit`, `offset`, `groupBy`, `ignoreDeleteMarker`)
selectResult.selected = query.select
if `db` != nil:
selectResult.table = `table`
selectResult.selected = query.select
selectResult.row = getRow(`db`, sql(query.sql), query.params)
else:
pg.withconnection conn:
selectResult.row = getRow(conn, sql(query.sql), query.params)
except SqlValidationError as e:
logError(e.msg)
except SqlQueryWarning as e:
logError(e.msg)
except DbError as e:
logError(e.msg)
selectResult
macro selectRows*(
table: static string,
select: untyped,
joins: untyped = nil,
where: untyped = nil,
order: untyped = nil,
limit: int = 0,
offset: int = 0,
groupBy: untyped = nil,
ignoreDeleteMarker: bool = false,
debugPrintQuery: bool = false,
db: DbConn = nil
): untyped =
result = quote do:
var selectResult: RowsSelectionData
selectResult.table = `table`
selectResult.rows = @[]
try:
var query: QueryResultSelect = selectQuery(`table`, `select`, `joins`, `where`, `order`, `limit`, `offset`, `groupBy`, `ignoreDeleteMarker`)
when defined(dev):
if `debugPrintQuery`:
echo query.sql
echo query.params
if `db` != nil:
selectResult.table = `table`
selectResult.selected = query.select
selectResult.rows = getAllRows(`db`, sql(query.sql), query.params)
else:
pg.withconnection conn:
# We're adding in each loop because each instance must be
# self-contained.
selectResult.table = `table`
selectResult.selected = query.select
selectResult.rows = getAllRows(conn, sql(query.sql), query.params)
except SqlValidationError as e:
logError(e.msg)
except SqlQueryWarning as e:
logError(e.msg)
except DbError as e:
logError(e.msg)
selectResult
template updateValue*(
table: static string,
data: untyped,
where: untyped,
db: DbConn = nil
): int64 =
var result: int64 = 0
try:
var query: QueryResult = updateQuery(table, @[data], where)
if db != nil:
result = execAffectedRows(db, sql(query.sql), query.params)
else:
pg.withconnection conn:
result = execAffectedRows(conn, sql(query.sql), query.params)
except SqlValidationError as e:
logError(e.msg)
except SqlQueryWarning as e:
logError(e.msg)
except ValueError as e:
logError(e.msg)
except DbError as e:
logError(e.msg)
result
template updateValues*(
table: static string,
data: untyped,
where: untyped,
debugPrintQuery: bool = false,
db: DbConn = nil
): int64 =
var result: int64 = 0
try:
var query: QueryResult = updateQuery(table, data, where)
when defined(dev):
if debugPrintQuery:
echo query.sql
echo query.params
if db != nil:
result = execAffectedRows(db, sql(query.sql), query.params)
else:
pg.withconnection conn:
result = execAffectedRows(conn, sql(query.sql), query.params)
except SqlValidationError as e:
logError(e.msg)
except SqlQueryWarning as e:
logError(e.msg)
except DbError as e:
logError(e.msg)
except ValueError as e:
logError(e.msg)
result
template deleteRows*(
table: static string,
where: untyped,
db: DbConn = nil
): int64 =
# Convert to template so the literal array syntax gets passed through
# This enables compile-time field validation even when called from procs
var result: int64 = 0
try:
var query: QueryResult = deleteQuery(table, where)
if db != nil:
result = execAffectedRows(db, sql(query.sql), query.params)
else:
pg.withconnection conn:
result = execAffectedRows(conn, sql(query.sql), query.params)
except SqlValidationError as e:
logError(e.msg)
except SqlQueryWarning as e:
logError(e.msg)
except ValueError as e:
logError(e.msg)
except DbError as e:
logError(e.msg)
result
template insertRow*(
table: static string,
data: untyped,
db: DbConn = nil
): int64 =
var result: int64 = 0
try:
var query: QueryResult = insertQuery(table, data)
if db != nil:
result = tryInsertID(db, sql(query.sql), query.params)
else:
pg.withconnection conn:
result = tryInsertID(conn, sql(query.sql), query.params)
except SqlValidationError as e:
logError(e.msg)
except SqlQueryWarning as e:
logError(e.msg)
except ValueError as e:
logError(e.msg)
except DbError as e:
logError(e.msg)
result
proc selectRowsRuntime*(
table: string,
select: seq[string],
joins: seq[JoinSpec] = @[],
where: seq[WhereSpec] = @[],
whereString: WhereStringSpec = (where: "", params: @[]),
order: seq[OrderSpec] = @[],
limit: int = 0,
offset: int = 0,
groupBy: seq[string] = @[],
ignoreDeleteMarker: bool = false,
debugPrintQuery: bool = false,
db: DbConn = nil
): RowsSelectionData =
var query: QueryResultSelect
try:
query = selectQueryRuntime(table = table, select = select, joins = joins, where = where, whereString = whereString, order = order, limit = limit, offset = offset, groupBy = groupBy, ignoreDeleteMarker = ignoreDeleteMarker)
when defined(dev):
if debugPrintQuery:
echo query.sql
echo query.params
if db != nil:
result.table = table
result.selected = query.select
result.rows = getAllRows(db, sql(query.sql), query.params)
else:
pg.withconnection conn:
result.table = table
result.selected = query.select
result.rows = getAllRows(conn, sql(query.sql), query.params)
except SqlValidationError as e:
logError(e.msg)
return
except SqlQueryWarning as e:
logError(e.msg)
return
except DbError as e:
logError(e.msg)
return
proc selectRowsRuntime*(
table: string,
select: seq[string],
where: WhereNode,
joins: seq[JoinSpec] = @[],
whereString: WhereStringSpec = (where: "", params: @[]),
order: seq[OrderSpec] = @[],
limit: int = 0,
offset: int = 0,
groupBy: seq[string] = @[],
ignoreDeleteMarker: bool = false,
debugPrintQuery: bool = false,
db: DbConn = nil
): RowsSelectionData =
var query: QueryResultSelect
try:
query = selectQueryRuntime(table = table, select = select, where = where, joins = joins, whereString = whereString, order = order, limit = limit, offset = offset, groupBy = groupBy, ignoreDeleteMarker = ignoreDeleteMarker)
when defined(dev):
if debugPrintQuery:
echo query.sql
echo query.params
if db != nil:
result.table = table
result.selected = query.select
result.rows = getAllRows(db, sql(query.sql), query.params)
else:
pg.withconnection conn:
result.table = table
result.selected = query.select
result.rows = getAllRows(conn, sql(query.sql), query.params)
except SqlValidationError as e:
logError(e.msg)
return
except SqlQueryWarning as e:
logError(e.msg)
return
except DbError as e:
logError(e.msg)
return
proc selectValueRuntime*(
table: string,
select: string,
joins: seq[JoinSpec] = @[],
where: seq[WhereSpec] = @[],
whereString: WhereStringSpec = (where: "", params: @[]),
order: seq[OrderSpec] = @[],
limit: int = 0,
offset: int = 0,
debugPrintQuery: bool = false,
db: DbConn = nil
): string =
var query: QueryResultSelect
try:
query = selectQueryRuntime(table = table, select = @[select], joins = joins, where = where, whereString = whereString, order = order, limit = limit, offset = offset)
when defined(dev):
if debugPrintQuery:
echo query.sql
echo query.params
if db != nil:
result = getValue(db, sql(query.sql), query.params)
else:
pg.withconnection conn:
result = getValue(conn, sql(query.sql), query.params)
except SqlValidationError as e:
logError(e.msg)
return
except SqlQueryWarning as e:
logError(e.msg)
return
except DbError as e:
logError(e.msg)
return
proc selectValueRuntime*(
table: string,
select: string,
where: WhereNode,
joins: seq[JoinSpec] = @[],
whereString: WhereStringSpec = (where: "", params: @[]),
order: seq[OrderSpec] = @[],
limit: int = 0,
offset: int = 0,
debugPrintQuery: bool = false,
db: DbConn = nil
): string =
var query: QueryResultSelect
try:
query = selectQueryRuntime(table = table, select = @[select], where = where, joins = joins, whereString = whereString, order = order, limit = limit, offset = offset)
when defined(dev):
if debugPrintQuery:
echo query.sql
echo query.params
if db != nil:
result = getValue(db, sql(query.sql), query.params)
else:
pg.withconnection conn:
result = getValue(conn, sql(query.sql), query.params)
except SqlValidationError as e:
logError(e.msg)
return
except SqlQueryWarning as e:
logError(e.msg)
return
except DbError as e:
logError(e.msg)
return