85 lines
1.9 KiB
Go
85 lines
1.9 KiB
Go
package bdb
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import (
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"strings"
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"github.com/vattle/sqlboiler/strmangle"
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)
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// Column holds information about a database column.
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// Types are Go types, converted by TranslateColumnType.
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type Column struct {
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Name string
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Type string
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DBType string
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Default string
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Nullable bool
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Unique bool
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Validated bool
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// Postgres only extension bits
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// ArrType is the underlying data type of the Postgres
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// ARRAY type. See here:
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// https://www.postgresql.org/docs/9.1/static/infoschema-element-types.html
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ArrType *string
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UDTName string
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// MySQL only bits
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// Used to get full type, ex:
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// tinyint(1) instead of tinyint
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// Used for "tinyint-as-bool" flag
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FullDBType string
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// MS SQL only bits
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// Used to indicate that the value
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// for this column is auto generated by database on insert (i.e. - timestamp (old) or rowversion (new))
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AutoGenerated bool
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}
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// ColumnNames of the columns.
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func ColumnNames(cols []Column) []string {
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names := make([]string, len(cols))
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for i, c := range cols {
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names[i] = c.Name
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}
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return names
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}
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// ColumnDBTypes of the columns.
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func ColumnDBTypes(cols []Column) map[string]string {
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types := map[string]string{}
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for _, c := range cols {
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types[strmangle.TitleCase(c.Name)] = c.DBType
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}
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return types
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}
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// FilterColumnsByDefault generates the list of columns that have default values
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func FilterColumnsByDefault(defaults bool, columns []Column) []Column {
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var cols []Column
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for _, c := range columns {
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if (defaults && (len(c.Default) != 0 || c.AutoGenerated)) || (!defaults && len(c.Default) == 0 && !c.AutoGenerated) {
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cols = append(cols, c)
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}
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}
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return cols
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}
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// FilterColumnsByEnum generates the list of columns that are enum values.
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func FilterColumnsByEnum(columns []Column) []Column {
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var cols []Column
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for _, c := range columns {
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if strings.HasPrefix(c.DBType, "enum") {
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cols = append(cols, c)
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}
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}
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return cols
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}
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