Leonel, also, if you want to do some consulting, please let m know... -Ron
On Sunday, March 1, 2015 at 1:14:41 PM UTC-5, Abhijit Chatterjee wrote: > > I put the "auth.settings.extra_fields..." in my model db.by and the rest > in my controller default.py. > > How do I now implement them. Any thoughts? > > On Thursday, February 26, 2015 at 8:04:27 PM UTC-5, Leonel Câmara wrote: >> >> It's not very hard, here's a possibility that requires you to have pillow >> <https://pillow.readthedocs.org/> installed. >> >> >> auth.settings.extra_fields['auth_user'] = [ >> Field('photo', 'upload', label=T('Photo'), uploadseparate=True, >> requires=[IS_EMPTY_OR(IS_IMAGE(error_message=T('This is not an image.' >> ))), IS_LENGTH(maxsize=1048576)]), >> Field('avatar','upload', uploadseparate=True, readable=False, >> writable=False, autodelete=True, compute=lambda row: SMARTHUMB( >> 'auth_user', row.photo, (32, 32), name='avatar')), >> ] >> >> >> >> def upload_fullpath(tablename, filename, makedirs=False): >> """ >> Given a tablename and a filename return the full path >> TODO: For now it assumes uploadseparate=True in the field definition, >> could be more versatile. >> """ >> import os >> from gluon import current >> fieldname, img_uid = filename.split('.')[1:3] >> path = os.path.join(current.request.folder, 'uploads', tablename + >> '.' + fieldname, img_uid[:2], filename) >> if makedirs: >> try: >> os.makedirs(os.path.dirname(path)) >> except OSError: >> print "Skipping creation of %s because it exists already." % >> os.path.dirname(path) >> return path >> >> >> def SMARTHUMB(tablename, image, box, fit=True, name="thumbnail"): >> """ >> Downsample the image. >> >> http://www.web2pyslices.com/slice/show/1522/generate-a-thumbnail-that-fits-in-a-box >> >> Modified to respect uploadseparate=True differences >> >> @param img: Image - an Image-object >> @param box: tuple(x, y) - the bounding box of the result image >> @param fit: boolean - crop the image to fill the box >> """ >> if image: >> from PIL import Image >> import os >> from gluon.tools import current, web2py_uuid >> request = current.request >> img = Image.open(upload_fullpath(tablename, image)) >> #preresize image with factor 2, 4, 8 and fast algorithm >> factor = 1 >> while img.size[0] / factor > 2 * box[0] and img.size[1] * 2 / >> factor > 2 * box[1]: >> factor *= 2 >> if factor > 1: >> img.thumbnail((img.size[0] / factor, img.size[1] / factor), >> Image.ANTIALIAS) >> >> #calculate the cropping box and get the cropped part >> if fit: >> x1 = y1 = 0 >> x2, y2 = img.size >> wRatio = 1.0 * x2 / box[0] >> hRatio = 1.0 * y2 / box[1] >> if hRatio > wRatio: >> y1 = int(y2 / 2 - box[1] * wRatio / 2) >> y2 = int(y2 / 2 + box[1] * wRatio / 2) >> else: >> x1 = int(x2 / 2 - box[0] * hRatio / 2) >> x2 = int(x2 / 2 + box[0] * hRatio / 2) >> img = img.crop((x1, y1, x2, y2)) >> >> #Resize the image with best quality algorithm ANTI-ALIAS >> img = img.resize(box, Image.ANTIALIAS) >> >> root, ext = os.path.splitext(image) >> thumbname = '%s.%s.%s.%s%s' % (tablename, name, web2py_uuid(). >> replace('-', '')[-16:], web2py_uuid().replace('-', '')[-16:], ext) >> img.save(upload_fullpath(tablename, thumbname, makedirs=True)) >> >> ... > > -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
