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feat: Add dbIgnore pragma #27

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feat: Add dbIgnore pragma #27

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21 changes: 15 additions & 6 deletions sqlcipher.nim
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Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,9 @@ proc hasRows*(rows: seq[ResultRow]): bool = rows.len > 0
template dbColumnName*(name: string) {.pragma.}
## Specifies the database column name for the object property

template dbIgnore*() {.pragma.}
## Specifies the object property should not be considered a DB column

template dbTableName*(name: string) {.pragma.}
## Specifies the database table name for the object

Expand All @@ -95,9 +98,9 @@ template tableName*(obj: auto | typedesc): string =


template enumInstanceDbColumns*(obj: auto,
fieldNameVar, fieldVar,
fieldNameVar, fieldVar, fieldIgnore,
body: untyped) =
## Expands a block over all serialized fields of an object.
## Expands a block over all fields of an object.
##
## Inside the block body, the passed `fieldNameVar` identifier
## will refer to the name of each field as a string. `fieldVar`
Expand All @@ -108,16 +111,22 @@ template enumInstanceDbColumns*(obj: auto,
type ObjType {.used.} = type(obj)

for fieldName, fieldVar in fieldPairs(obj):
when hasCustomPragmaFixed(ObjType, fieldName, dbColumnName):
when hasCustomPragmaFixed(ObjType, fieldName, dbIgnore):
const fieldIgnore = true
const fieldNameVar = fieldName
elif hasCustomPragmaFixed(ObjType, fieldName, dbColumnName):
const fieldIgnore = false
const fieldNameVar = getCustomPragmaFixed(ObjType, fieldName, dbColumnName)
else:
const fieldIgnore = false
const fieldNameVar = fieldName
body

proc unpack*(row: ResultRow, obj: var object) =
obj.enumInstanceDbColumns(dbColName, property):
type ColType = type property
property = row[dbColName, ColType]
obj.enumInstanceDbColumns(dbColName, property, ignore):
if not ignore:
type ColType = type property
property = row[dbColName, ColType]

#
# Custom.sqlcipher
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