In a new record a thumbnail is correctly generated from photo. But if I
didn't upload a photo or want to change the photo the thumbnail doesn't
generate. So basically a new record works properly but when updating
nothing in the thumbnail changes at all whether or not is currently has a
photo in it.
____________________________________________________
model:
from image import THUMBER
db.define_table('park',
Field('photo1', 'upload'),
Field('photo_thumb1', 'upload', readable=False, writable=False))
db.park.photo_thumb1.compute = lambda row: THUMBER(row.photo1,
"photo_thumb1", 144, 115)
____________________________________________________
image.py:
from gluon import current
def THUMBER(image, db_photo_var, nx=120, ny=120, name='thumb'):
if image:
try:
request = current.request
from PIL import Image
import os
img = Image.open(request.folder + 'uploads/' + image)
img.db_photo_var((nx, ny), Image.ANTIALIAS)
root, ext = os.path.splitext(image)
thumb = '%s_%s%s' % (root, name, ext)
img.save(request.folder + 'uploads/' + thumb)
return thumb
except Exception:
return image
On Monday, June 18, 2012 1:17:07 PM UTC-6, Massimo Di Pierro wrote:
>
> Let me understand this better.
>
> on insert, the thumbnails are created.
> on update, if you upload a new photo1 is photo_thing1 generated?
>
> Can you provide a simpler code to reproduce the problem with a just one
> upload field and one thumbnail field?
>
> massimo
>
>
>
>
> On Monday, 18 June 2012 11:24:05 UTC-5, Brandon Reynolds wrote:
>>
>> I have this problem when i try to generate thumbnails. If the field is
>> empty it inserts the photo thumb into the thumbnail. But when i try to
>> update that record the thumbnail doesn't change.
>>
>> Here is my model:
>>
>> # coding: utf8
>> from image import THUMBER
>>
>> db.define_table('park',
>> Field('park_name', requires=IS_NOT_EMPTY()),
>> Field('park_city', requires=IS_NOT_EMPTY()),
>> Field('park_state', requires=IS_NOT_EMPTY()),
>> Field('park_address', requires=IS_NOT_EMPTY()),
>> Field('park_zip', requires=IS_NOT_EMPTY()),
>> Field('country', default="USA", notnull=True, readable=False,
>> writable=False),
>> Field('park_phone', requires=IS_MATCH('[\d\-\(\) ]+')),
>> Field('park_fax', requires=IS_EMPTY_OR(IS_MATCH('[\d\-\(\) ]+'))),
>> Field('park_phone_2', 'string', requires=IS_EMPTY_OR(IS_MATCH('[\d\-\(\)
>> ]+'))),
>> Field('photo1', 'upload'),
>> Field('photo_thumb1', 'upload', readable=False, writable=False),
>> Field('photo2', 'upload'),
>> Field('photo_thumb2', 'upload', readable=False, writable=False),
>> Field('photo3', 'upload'),
>> Field('photo_thumb3', 'upload', readable=False, writable=False),
>> Field('photo4', 'upload'),
>> Field('photo_thumb4', 'upload', readable=False, writable=False),
>> Field('photo5', 'upload'),
>> Field('photo_thumb5', 'upload', readable=False, writable=False),
>> Field('manager', requires=IS_NOT_EMPTY()),
>> Field('manager_email', requires=IS_EMAIL()),
>> Field('spaces', 'integer', requires=IS_NOT_EMPTY()),
>> Field('vacant', 'integer'),
>> Field('lot_rent', 'integer', requires=IS_NOT_EMPTY()),
>> Field('water', 'boolean'),
>> Field('sewer', 'boolean'),
>> Field('trash', 'boolean'),
>> Field('pool', 'boolean'),
>> Field('playground', 'boolean'),
>> Field('clubhouse', 'boolean'),
>> Field('laundromat', 'boolean'),
>> Field('rv_spaces', 'boolean'),
>> Field('storage', 'boolean'),
>> Field('handicap_accessible', 'boolean'),
>> Field('community_description', 'text'),
>> format='%(park_name)s')
>>
>> db.define_table('home',
>> Field('pid', notnull=True, readable=False, writable=False),
>> Field('lot'),
>> Field('year', length=4, requires=IS_NOT_EMPTY()),
>> Field('make'),
>> Field('model'),
>> Field('width', requires=IS_NOT_EMPTY()),
>> Field('length', requires=IS_NOT_EMPTY()),
>> Field('wide', requires=IS_NOT_EMPTY()),
>> Field('for_sale', 'boolean', default=True),
>> Field('beds', requires=IS_NOT_EMPTY()),
>> Field('baths', requires=IS_NOT_EMPTY()),
>> Field('fridge', 'boolean'),
>> Field('stove', 'boolean'),
>> Field('dishwasher', 'boolean'),
>> Field('microwave', 'boolean'),
>> Field('washer', 'boolean'),
>> Field('dryer', 'boolean'),
>> Field('photo1', 'upload'),
>> Field('photo1_text'),
>> Field('photo_thumb1', 'upload', readable=False, writable=False),
>> Field('photo2', 'upload'),
>> Field('photo2_text'),
>> Field('photo_thumb2', 'upload', readable=False, writable=False),
>> Field('photo3', 'upload'),
>> Field('photo3_text'),
>> Field('photo_thumb3', 'upload', readable=False, writable=False),
>> Field('photo4', 'upload'),
>> Field('photo4_text'),
>> Field('photo_thumb4', 'upload', readable=False, writable=False),
>> Field('photo5', 'upload'),
>> Field('photo5_text'),
>> Field('photo_thumb5', 'upload', readable=False, writable=False),
>> Field('price',requires=IS_NOT_EMPTY()),
>> Field('description', 'text', requires=IS_NOT_EMPTY()),
>> Field('posted_on', 'datetime', readable=False, writable=False))
>>
>> db.define_table('state',
>> Field('name'),
>> Field('full_name'))
>>
>> db.define_table('wide',
>> Field('type'),
>> format='%(type)s')
>>
>>
>> db.park.park_state.requires = IS_IN_DB(db, 'state.name', '%(full_name)s
>> (%(name)s)', zero=T('Select State'))
>> db.home.wide.requires = IS_IN_DB(db, 'wide.type', '%(type)s',
>> zero=T('Select Home Type'))
>>
>> db.park.photo_thumb1.compute = lambda row: THUMBER(row.photo1,
>> "photo_thumb1", 144, 115)
>> db.park.photo_thumb2.compute = lambda row: THUMBER(row.photo2,
>> "photo_thumb2", 144, 115)
>> db.park.photo_thumb3.compute = lambda row: THUMBER(row.photo3,
>> "photo_thumb3", 144, 115)
>> db.park.photo_thumb4.compute = lambda row: THUMBER(row.photo4,
>> "photo_thumb4", 144, 115)
>> db.park.photo_thumb5.compute = lambda row: THUMBER(row.photo5,
>> "photo_thumb5", 144, 115)
>> db.home.photo_thumb1.compute = lambda row: THUMBER(row.photo1,
>> "photo_thumb1", 144, 115)
>> db.home.photo_thumb2.compute = lambda row: THUMBER(row.photo2,
>> "photo_thumb2", 144, 115)
>> db.home.photo_thumb3.compute = lambda row: THUMBER(row.photo3,
>> "photo_thumb3", 144, 115)
>> db.home.photo_thumb4.compute = lambda row: THUMBER(row.photo4,
>> "photo_thumb4", 144, 115)
>> db.home.photo_thumb5.compute = lambda row: THUMBER(row.photo5,
>> "photo_thumb5", 144, 115)
>>
>>
>> Here is my controller:
>>
>> def index():
>> return locals()
>>
>> def parks():
>> if request.args(0):
>> parks =
>> db(db.park.park_state==request.args(0)).select(orderby=db.park.park_city|db.park.park_name)
>> else:
>> parks =
>> db(db.park).select(orderby=db.park.park_state|db.park.park_city|db.park.park_name)
>> return locals()
>>
>> def park():
>> park = db.park(request.args(0)) or redirect(URL('parks'))
>> homes = db(db.home.pid==(request.args(0))).select(orderby=db.home.id)
>> return locals()
>>
>> def home():
>> home = db.home(request.args(0)) or redirect(URL('parks'))
>> park = db.park(home.pid)
>> return locals()
>>
>> def home_feed():
>> home = db(db.home).select(orderby=db.home.id)
>> return locals()
>>
>> @auth.requires_membership('Admin')
>> def new_park():
>> form = crud.create(db.park, next='park/[id]')
>> return locals()
>>
>> @auth.requires_membership('Admin')
>> def new_home():
>> db.home.pid.default = request.args(0) or redirect(URL('parks'))
>> db.home.price.default = "$0000.00"
>> db.home.posted_on.default = request.now
>> form = crud.create(db.home, next='home/[id]')
>> return locals()
>>
>> @auth.requires_membership('Admin')
>> def edit_park():
>> park = db.park(request.args(0)) or redirect(URL('parks'))
>> form = crud.update(db.park, park, next='park/[id]')
>> return locals()
>>
>>
>> @auth.requires_membership('Admin')
>> def edit_home():
>> home = db.home(request.args(0)) or redirect(URL('parks'))
>> form = crud.update(db.home, home, next='home/[id]')
>> return locals()
>>
>> def about_us():
>> return locals()
>>
>> def employment_opportunities():
>> return locals()
>>
>> def park_management():
>> return locals()
>>
>> def make_park_thumbs():
>> from image import THUMBER
>> parks=db(db.park).select(orderby=db.park.park_state)
>> for park in parks:
>> park.update_record(photo_thumb1 = THUMBER(park.photo1, "photo_thumb1",
>> 144, 115))
>> park.update_record(photo_thumb2 = THUMBER(park.photo2, "photo_thumb2",
>> 144, 115))
>> park.update_record(photo_thumb3 = THUMBER(park.photo3, "photo_thumb3",
>> 144, 115))
>> park.update_record(photo_thumb4 = THUMBER(park.photo4, "photo_thumb4",
>> 144, 115))
>> park.update_record(photo_thumb5 = THUMBER(park.photo5, "photo_thumb5",
>> 144, 115))
>> db.commit()
>>
>>
>> Here is the THUMBER function
>> from gluon import current
>>
>> def THUMBER(image, db_photo_var, nx=120, ny=120, name='thumb'):
>> if image:
>> try:
>> request = current.request
>> from PIL import Image
>> import os
>> img = Image.open(request.folder + 'uploads/' + image)
>> img.db_photo_var((nx, ny), Image.ANTIALIAS)
>> root, ext = os.path.splitext(image)
>> thumb = '%s_%s%s' % (root, name, ext)
>> img.save(request.folder + 'uploads/' + thumb)
>> return thumb
>> except Exception:
>> return image
>>
>>
>> What should i do to get these working on update? At the bottom of the
>> controller you will notice a the make_park_thumbs() function. That was one
>> way of try to fix this and having it set to run on updates. However won't
>> generate a thumbnail it just returns the original photo. This would work if
>> you can tell why that function won't work. Let me know what to do.
>>
>> Braandon
>>
>
