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Support slave clog-one-rows to handle one to many relationships

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This commit is contained in:
David Botton 2022-02-26 23:37:52 -05:00
parent 1f56039d99
commit d903791c86
4 changed files with 104 additions and 51 deletions
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48
source/clog-dbi.lisp
View file

@ -97,6 +97,14 @@ CLOG-Builder. If not using builder use to connect:
:accessor queryid
:initform nil
:documentation "Current query (private)")
(slave-to-slot
:accessor slave-to-slot
:initform nil
:documentation "Slot to watch on fetch by master row (private)")
(slaves
:accessor slaves
:initform nil
:documentation "List of slaves to call get-row")
(on-fetch
:accessor on-fetch
:initform nil
@ -109,8 +117,9 @@ CLOG-Builder. If not using builder use to connect:
(defgeneric create-one-row (clog-obj &key clog-database
hidden class html-id auto-place)
(:documentation "Create a new CLOG-One-Row element. A CLOG Database
must be a parent to CLOG-One-Row."))
(:documentation "Create a new CLOG-One-Row element. If CLOG-OBJ is
of type-of CLOG-DATABASE it is used as database source unless
:CLOG-DATABASE is set."))
(defmethod create-one-row ((obj clog-obj) &key (clog-database nil)
(hidden nil)
@ -122,6 +131,8 @@ must be a parent to CLOG-One-Row."))
:html-id html-id
:auto-place auto-place)
'clog-one-row)))
(when (and (typep obj 'clog-database) (not clog-database))
(setf clog-database obj))
(setf (clog-database new-obj) clog-database)
new-obj))
@ -142,14 +153,26 @@ CLOG-ONE-ROW's table-name using where-clause and table-columns.
row-id-name is required. All PANEL items or custom rows on panel will
be set using DATA-LOAD-PLIST."))
(defmethod get-row ((obj clog-one-row) panel)
(let ((where (where-clause obj)))
(when (slave-to-slot obj)
(let ((field (slave-to-slot obj))
(data (car (data-write-list panel (list (slave-to-slot obj))))))
(when (consp (slave-to-slot obj))
(setf flield (car field)))
(setf where (format nil "~A='~A'~A"
field
data
(if (equal where "")
""
(format nil " and ~A" where))))))
(setf (queryid obj) (dbi:execute
(dbi:prepare
(database-connection (clog-database obj))
(sql-select (table-name obj)
(table-columns obj)
:where (where-clause obj)
:where where
:order-by (order-by obj)
:limit (limit obj)))))
:limit (limit obj))))))
(next-row obj panel))
(defgeneric next-row (clog-one-row panel)
@ -157,12 +180,20 @@ be set using DATA-LOAD-PLIST."))
made for get-row. All PANEL items or custom rows on panel will be set
using DATA-LOAD-PLIST."))
(defmethod next-row ((obj clog-one-row) panel)
(dolist (slave (slaves obj))
(clear-row slave panel))
(setf (last-fetch obj) (dbi:fetch (queryid obj)))
(when (on-fetch obj)
(funcall (on-fetch obj) obj))
(setf (rowid obj) (data-load-plist panel
(last-fetch obj)
:row-id-name (row-id-name obj))))
:row-id-name (row-id-name obj)))
(if (rowid obj)
(dolist (slave (slaves obj))
(get-row slave panel))
(unless (slave-to-slot obj)
(clear-row obj panel)))
(rowid obj))
(defgeneric insert-row (clog-one-row panel)
(:documentation "Insert new row in to database table based on
@ -207,6 +238,13 @@ using DATA-WRITE-PLIST based on table-columns."))
(setf (last-fetch obj) nil)
(setf (rowid obj) nil)))
(defgeneric set-master-one-row (clog-one-row master-one-row slot-name)
(:documentation "Set CLOG-ONE-ROW to get-row setting a while-clause
to follow slot-name of panel when MASTER-ONE-ROW calls next-row."))
(defmethod set-master-one-row ((obj clog-one-row) master-one-row slot-name)
(push obj (slaves master-one-row))
(setf (slave-to-slot obj) slot-name))
(defgeneric set-on-fetch (clog-one-row on-fetch-handler)
(:documentation "Set the ON-FETCH-HANDLER for CLOG-ONE-ROW. If ON-FETCH-HANDLER
is nil unbind the event. The on-fetch event is called after the row was fetched

1
source/clog.lisp
View file

@ -546,6 +546,7 @@ embedded in a native template application.)"
(clog-one-row class)
(set-on-fetch generic-function)
(set-master-one-row generic-function)
(create-one-row generic-function)
(clog-database generic-function)
(table-name generic-function)

2
test/rolodex.clog
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File diff suppressed because one or more lines are too long

28
tools/clog-builder-settings.lisp
View file

@ -1369,39 +1369,53 @@
(setf (attribute control "data-clog-one-row-where") "")
(setf (attribute control "data-clog-one-row-order") "")
(setf (attribute control "data-clog-one-row-limit") "")
(setf (attribute control "data-clog-one-row-master") "")
(setf (attribute control "data-clog-one-row-id-name") "rowid")
(setf (attribute control "data-clog-one-row-columns") "rowid"))
:on-setup ,(lambda (control control-record)
(declare (ignore control-record))
(format nil "(setf (clog-database target) (~A panel)) ~
(let ((parent (attribute (parent-element control) "data-clog-name"))
(master (attribute control "data-clog-one-row-master")))
(when (equal master "")
(setf master nil))
(format nil "(setf (clog-database target) ~A) ~
~A ~
(setf (table-name target) \"~A\") ~
(setf (where-clause target) \"~A\") ~
(setf (order-by target) \"~A\") ~
(setf (limit target) \"~A\") ~
(setf (row-id-name target) \"~A\") ~
(setf (table-columns target) '(~A))"
(attribute (parent-element control) "data-clog-name")
(if master
(format nil "(clog-database (~A panel))" parent)
(format nil "(~A panel)" parent))
(if master
(format nil "(set-master-one-row target (~A panel) \"~A\")"
parent master)
"")
(attribute control "data-clog-one-row-table")
(attribute control "data-clog-one-row-where")
(attribute control "data-clog-one-row-order")
(attribute control "data-clog-one-row-limit")
(attribute control "data-clog-one-row-id-name")
(attribute control "data-clog-one-row-columns")))
(attribute control "data-clog-one-row-columns"))))
:events ((:name "on-fetch"
:parameters "target")
,@*events-element*)
:properties ((:name "table name"
:attr "data-clog-one-row-table")
(:name "table row id name"
:attr "data-clog-one-row-id-name")
(:name "table columns"
:attr "data-clog-one-row-columns")
(:name "where clause (optional)"
:attr "data-clog-one-row-where")
(:name "order by (optional)"
:attr "data-clog-one-row-order")
(:name "limit (optional)"
:attr "data-clog-one-row-limit")
(:name "table row id name"
:attr "data-clog-one-row-id-name")
(:name "table columns"
:attr "data-clog-one-row-columns")
(:name "join to slot-name (optional)"
:attr "data-clog-one-row-master")
,@*props-element*))))
(defparameter *supported-templates*