Related
How can we pick a random row from 3 tables, whereas the table row count for each table may vary. This would need to be fair if there not same count. This means if one table had only one row and the other table has 10 rows, then were much more likely get row from table with 10 rows. Each row in all tables get chance at winning
I was trying to convert this SQL code which I got from another Stack Overflow post here
SELECT preview_id, review_id
FROM (
select preview.*, row_number() over (order by newid()) as seqnum from
preview
) preview
JOIN (
select review.*, row_number() over (order by newid()) as seqnum
from review
) review ON preview.seqnum = review.seqnum;
3 Table schemas.
CREATE TABLE preview
(
preview_id SERIAL PRIMARY KEY NOT NULL,
preview_header VARCHAR(90) NOT NULL,
preview_text TEXT NOT NULL
);
INSERT INTO preview(preview_header, preview_text) VALUES ('Preview Header One', '"On the other hand, we denounce with righteous indignation and dislike men who are so beguiled and demoralized by the charms of pleasure of the moment, so blinded by desire, that they cannot foresee the pain and trouble that are bound to ensue; and equal blame belongs to those who fail in their duty through weakness of will, which is the same as saying through shrinking from toil and pain. These cases are perfectly simple and easy to distinguish. In a free hour, when our power of choice is untrammelled and when nothing prevents our being able to do what we like best, every pleasure is to be welcomed and every pain avoided. But in certain circumstances and owing to the claims of duty or the obligations of business it will frequently occur that pleasures have to be repudiated and annoyances accepted. The wise man therefore always holds in these matters to this principle of selection: he rejects pleasures to secure other greater pleasures, or else he endures pains to avoid worse pains.");
INSERT INTO preview(preview_header, preview_text) VALUES ('Preview Header Two', '"There are many variations of passages of Lorem Ipsum available, but the majority have suffered alteration in some form, by injected humour, or randomised words which don''t look even slightly believable. If you are going to use a passage of Lorem Ipsum, you need to be sure there isn''t anything embarrassing hidden in the middle of text. All the Lorem Ipsum generators on the Internet tend to repeat predefined chunks as necessary, making this the first true generator on the Internet. It uses a dictionary of over 200 Latin words, combined with a handful of model sentence structures, to generate Lorem Ipsum which looks reasonable. The generated Lorem Ipsum is therefore always free from repetition, injected humour, or non-characteristic words etc.");
INSERT INTO preview(preview_header, preview_text) VALUES ('Preview Header Three', '"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.");
INSERT INTO preview(preview_header, preview_text) VALUES ('Preview Header Four', '"Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur? Quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum qui dolorem eum fugiat quo voluptas nulla pariatur?" );
INSERT INTO preview(preview_header, preview_text) VALUES ('Preview Header Five', '"But I must explain to you how all this mistaken idea of denouncing pleasure and praising pain was born and I will give you a complete account of the system, and expound the actual teachings of the great explorer of the truth, the master-builder of human happiness. No one rejects, dislikes, or avoids pleasure itself, because it is pleasure, but because those who do not know how to pursue pleasure rationally encounter consequences that are extremely painful. Nor again is there anyone who loves or pursues or desires to obtain pain of itself, because it is pain, but because occasionally circumstances occur in which toil and pain can procure him some great pleasure. To take a trivial example, which of us ever undertakes laborious physical exercise, except to obtain some advantage from it? But who has any right to find fault with a man who chooses to enjoy a pleasure that has no annoying consequences, or one who avoids a pain that produces no resultant pleasure?");
INSERT INTO preview(preview_header, preview_text) VALUES ('Preview Header Six', '"At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Temporibus autem quibusdam et aut officiis debitis aut rerum necessitatibus saepe eveniet ut et voluptates repudiandae sint et molestiae non recusandae. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.");
CREATE TABLE article
(
article_id SERIAL PRIMARY KEY NOT NULL,
article_header VARCHAR(90) NOT NULL,
article_text TEXT NOT NULL
);
SELECT * FROM article;
INSERT INTO article(article_header, article_text) VALUES ('Article Header One', '"On the other hand, we denounce with righteous indignation and dislike men who are so beguiled and demoralized by the charms of pleasure of the moment, so blinded by desire, that they cannot foresee the pain and trouble that are bound to ensue; and equal blame belongs to those who fail in their duty through weakness of will, which is the same as saying through shrinking from toil and pain. These cases are perfectly simple and easy to distinguish. In a free hour, when our power of choice is untrammelled and when nothing prevents our being able to do what we like best, every pleasure is to be welcomed and every pain avoided. But in certain circumstances and owing to the claims of duty or the obligations of business it will frequently occur that pleasures have to be repudiated and annoyances accepted. The wise man therefore always holds in these matters to this principle of selection: he rejects pleasures to secure other greater pleasures, or else he endures pains to avoid worse pains.");
INSERT INTO article(article_header, article_text) VALUES ('Article Header Two', '"There are many variations of passages of Lorem Ipsum available, but the majority have suffered alteration in some form, by injected humour, or randomised words which don''t look even slightly believable. If you are going to use a passage of Lorem Ipsum, you need to be sure there isn''t anything embarrassing hidden in the middle of text. All the Lorem Ipsum generators on the Internet tend to repeat predefined chunks as necessary, making this the first true generator on the Internet. It uses a dictionary of over 200 Latin words, combined with a handful of model sentence structures, to generate Lorem Ipsum which looks reasonable. The generated Lorem Ipsum is therefore always free from repetition, injected humour, or non-characteristic words etc.");
INSERT INTO article(article_header, article_text) VALUES ('Article Header Three', '"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.");
INSERT INTO article(article_header, article_text) VALUES ('Article Header Four', '"Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur? Quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum qui dolorem eum fugiat quo voluptas nulla pariatur?");
INSERT INTO article(article_header, article_text) VALUES ('Article Header Five', '"But I must explain to you how all this mistaken idea of denouncing pleasure and praising pain was born and I will give you a complete account of the system, and expound the actual teachings of the great explorer of the truth, the master-builder of human happiness. No one rejects, dislikes, or avoids pleasure itself, because it is pleasure, but because those who do not know how to pursue pleasure rationally encounter consequences that are extremely painful. Nor again is there anyone who loves or pursues or desires to obtain pain of itself, because it is pain, but because occasionally circumstances occur in which toil and pain can procure him some great pleasure. To take a trivial example, which of us ever undertakes laborious physical exercise, except to obtain some advantage from it? But who has any right to find fault with a man who chooses to enjoy a pleasure that has no annoying consequences, or one who avoids a pain that produces no resultant pleasure?");
INSERT INTO article(article_header, article_text) VALUES ('Article Header Six', '"At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Temporibus autem quibusdam et aut officiis debitis aut rerum necessitatibus saepe eveniet ut et voluptates repudiandae sint et molestiae non recusandae. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.");
CREATE TABLE review
(
review_id SERIAL PRIMARY KEY NOT NULL,
review_header VARCHAR(90) NOT NULL,
review_text TEXT NOT NULL
);
INSERT INTO review(review_header, review_text) VALUES ('Preview Header One', '"On the other hand, we denounce with righteous indignation and dislike men who are so beguiled and demoralized by the charms of pleasure of the moment, so blinded by desire, that they cannot foresee the pain and trouble that are bound to ensue; and equal blame belongs to those who fail in their duty through weakness of will, which is the same as saying through shrinking from toil and pain. These cases are perfectly simple and easy to distinguish. In a free hour, when our power of choice is untrammelled and when nothing prevents our being able to do what we like best, every pleasure is to be welcomed and every pain avoided. But in certain circumstances and owing to the claims of duty or the obligations of business it will frequently occur that pleasures have to be repudiated and annoyances accepted. The wise man therefore always holds in these matters to this principle of selection: he rejects pleasures to secure other greater pleasures, or else he endures pains to avoid worse pains." );
INSERT INTO review(review_header, review_text) VALUES ('Preview Header Two', '"There are many variations of passages of Lorem Ipsum available, but the majority have suffered alteration in some form, by injected humour, or randomised words which don''t look even slightly believable. If you are going to use a passage of Lorem Ipsum, you need to be sure there isn''t anything embarrassing hidden in the middle of text. All the Lorem Ipsum generators on the Internet tend to repeat predefined chunks as necessary, making this the first true generator on the Internet. It uses a dictionary of over 200 Latin words, combined with a handful of model sentence structures, to generate Lorem Ipsum which looks reasonable. The generated Lorem Ipsum is therefore always free from repetition, injected humour, or non-characteristic words etc.");
INSERT INTO review(review_header, review_text) VALUES ('Preview Header Three', '"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum." );
INSERT INTO review(review_header, review_text) VALUES ('Preview Header Four', '"Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur? Quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum qui dolorem eum fugiat quo voluptas nulla pariatur?");
INSERT INTO review(review_header, review_text) VALUES ('Preview Header Five', '"But I must explain to you how all this mistaken idea of denouncing pleasure and praising pain was born and I will give you a complete account of the system, and expound the actual teachings of the great explorer of the truth, the master-builder of human happiness. No one rejects, dislikes, or avoids pleasure itself, because it is pleasure, but because those who do not know how to pursue pleasure rationally encounter consequences that are extremely painful. Nor again is there anyone who loves or pursues or desires to obtain pain of itself, because it is pain, but because occasionally circumstances occur in which toil and pain can procure him some great pleasure. To take a trivial example, which of us ever undertakes laborious physical exercise, except to obtain some advantage from it? But who has any right to find fault with a man who chooses to enjoy a pleasure that has no annoying consequences, or one who avoids a pain that produces no resultant pleasure?" );
INSERT INTO review(review_header, review_text) VALUES ('Preview Header Six', '"At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Temporibus autem quibusdam et aut officiis debitis aut rerum necessitatibus saepe eveniet ut et voluptates repudiandae sint et molestiae non recusandae. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.");
The desired result will be a single full row from any one these tables. So each row has a fair chance at been the winner
If tables has similar structure just use UNION ALL
SELECT *,
row_number() over (order by newid()) as seqnum
FROM ( SELECT preview.* FROM preview
UNION ALL
SELECT review.* FROM review
) T
if doesnt have similar structure you need to do some tricks to make the union with same number of columns.
SELECT *,
row_number() over (order by newid()) as seqnum
FROM ( SELECT 'preview' as `source`, p.field1, p.field2, null , null
FROM preview P
UNION ALL
SELECT 'review' as `source`, null , null , r.field1, r.field2
FROM review R
) T
EDIT: for you new request
SELECT *, row_number() over (order by random()) as seqnum
FROM (SELECT 'preview' as `source`, preview_id as winning_id
FROM `preview`
UNION ALL
SELECT 'article' as `source`, article_id
FROM `preview`
UNION ALL
SELECT 'review' as `source`, review_id
FROM `preview`
) T
--LIMIT 1;
I am unable to get ScrollView in Kivy to scroll through paragraphs of text. I have attached a code example below. Can anyone state what is wrong? Thank you.
import kivy
import string
from kivy.app import App
from kivy.uix.label import Label
from kivy.uix.gridlayout import GridLayout
from kivy.uix.scrollview import ScrollView
class longTextLabelApp(App):
def build(self):
scrollViewLayout = ScrollView(do_scroll_x=False)
childLayout = GridLayout(cols = 1, size_hint_x = 1, size_hint_y = None)
childLayout.bind(minimum_height=childLayout.setter('height'))
def longTextLabel():
_long_text = """
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus odio nisi, pellentesque molestie adipiscing vitae, aliquam at tellus. Fusce quis est ornare erat pulvinar elementum ut sed felis. Donec vel neque mauris. In sit amet nunc sit amet diam dapibus lacinia. In sodales placerat mauris, ut euismod augue laoreet at. Integer in neque non odio fermentum volutpat nec nec nulla. Donec et risus non mi viverra posuere. Phasellus cursus augue purus, eget volutpat leo. Phasellus sed dui vitae ipsum mattis facilisis vehicula eu justo.
Quisque neque dolor, egestas sed venenatis eget, porta id ipsum. Ut faucibus, massa vitae imperdiet rutrum, sem dolor rhoncus magna, non lacinia nulla risus non dui. Nulla sit amet risus orci. Nunc libero justo, interdum eu pulvinar vel, pulvinar et lectus. Phasellus sed luctus diam. Pellentesque non feugiat dolor. Cras at dolor velit, gravida congue velit. Aliquam erat volutpat. Nullam eu nunc dui, quis sagittis dolor. Ut nec dui eget odio pulvinar placerat. Pellentesque mi metus, tristique et placerat ac, pulvinar vel quam. Nam blandit magna a urna imperdiet molestie. Nullam ut nisi eget enim laoreet sodales sit amet a felis.
"""
reallyLongText = _long_text + _long_text + _long_text + _long_text +_long_text
myLabel = Label(text = reallyLongText, text_size = (700,None), line_height=1.5)
return myLabel
childLayout.add_widget(longTextLabel())
scrollViewLayout.add_widget(childLayout)
return scrollViewLayout
if __name__ == '__main__':
longTextLabelApp().run()
The default size of a Label (and Widget) is (100,100). It doesn't matter if you are seeing all the text on the screen. If you print myLabel.size you will realize of this. You need to be sure to set the height of the Label (myLabel.height: 2200) but first set the size_hint_y to None first (myLabel.size_hint_y=None). The following code should work:
import kivy
import string
from kivy.app import App
from kivy.uix.label import Label
from kivy.uix.gridlayout import GridLayout
from kivy.uix.scrollview import ScrollView
from kivy.graphics import Rectangle, Color
class longTextLabelApp(App):
def build(self):
scrollViewLayout = ScrollView(do_scroll_x=False)
childLayout = GridLayout(cols = 1, size_hint_x = 1, size_hint_y = None)
childLayout.bind(minimum_height=childLayout.setter('height'))
def longTextLabel():
_long_text = """
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus odio nisi, pellentesque molestie adipiscing vitae, aliquam at tellus. Fusce quis est ornare erat pulvinar elementum ut sed felis. Donec vel neque mauris. In sit amet nunc sit amet diam dapibus lacinia. In sodales placerat mauris, ut euismod augue laoreet at. Integer in neque non odio fermentum volutpat nec nec nulla. Donec et risus non mi viverra posuere. Phasellus cursus augue purus, eget volutpat leo. Phasellus sed dui vitae ipsum mattis facilisis vehicula eu justo.
Quisque neque dolor, egestas sed venenatis eget, porta id ipsum. Ut faucibus, massa vitae imperdiet rutrum, sem dolor rhoncus magna, non lacinia nulla risus non dui. Nulla sit amet risus orci. Nunc libero justo, interdum eu pulvinar vel, pulvinar et lectus. Phasellus sed luctus diam. Pellentesque non feugiat dolor. Cras at dolor velit, gravida congue velit. Aliquam erat volutpat. Nullam eu nunc dui, quis sagittis dolor. Ut nec dui eget odio pulvinar placerat. Pellentesque mi metus, tristique et placerat ac, pulvinar vel quam. Nam blandit magna a urna imperdiet molestie. Nullam ut nisi eget enim laoreet sodales sit amet a felis.
"""
reallyLongText = _long_text + _long_text + _long_text + _long_text +_long_text
myLabel = Label(text = reallyLongText, text_size = (700,None), line_height=1.5)
print "The label size is ", myLabel.size
myLabel.size_hint_y = None
myLabel.height = 2200
return myLabel
childLayout.add_widget(longTextLabel())
scrollViewLayout.add_widget(childLayout)
return scrollViewLayout
if __name__ == '__main__':
longTextLabelApp().run()
EDIT - RST Document
Depending on your objectives it might be better to use a RSTDocument. Label are just that, labels. They don't adjust to content or text. Think of them as stickers. The (RSTDocment)[http://kivy.org/docs/api-kivy.uix.rst.html], still indicated as highly experimental though is more suitable for long texts, specially if they are dynamic. They actually includes the Scroll.
from kivy.app import App
from kivy.uix.rst import RstDocument
class RstDocumentApp(App):
def build(self):
_long_text = """
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus odio nisi, pellentesque molestie adipiscing vitae, aliquam at tellus. Fusce quis est ornare erat pulvinar elementum ut sed felis. Donec vel neque mauris. In sit amet nunc sit amet diam dapibus lacinia. In sodales placerat mauris, ut euismod augue laoreet at. Integer in neque non odio fermentum volutpat nec nec nulla. Donec et risus non mi viverra posuere. Phasellus cursus augue purus, eget volutpat leo. Phasellus sed dui vitae ipsum mattis facilisis vehicula eu justo.
Quisque neque dolor, egestas sed venenatis eget, porta id ipsum. Ut faucibus, massa vitae imperdiet rutrum, sem dolor rhoncus magna, non lacinia nulla risus non dui. Nulla sit amet risus orci. Nunc libero justo, interdum eu pulvinar vel, pulvinar et lectus. Phasellus sed luctus diam. Pellentesque non feugiat dolor. Cras at dolor velit, gravida congue velit. Aliquam erat volutpat. Nullam eu nunc dui, quis sagittis dolor. Ut nec dui eget odio pulvinar placerat. Pellentesque mi metus, tristique et placerat ac, pulvinar vel quam. Nam blandit magna a urna imperdiet molestie. Nullam ut nisi eget enim laoreet sodales sit amet a felis.
"""
reallyLongText = _long_text + _long_text + _long_text + _long_text +_long_text
return RstDocument(text = reallyLongText)
if __name__ == '__main__':
RstDocumentApp().run()
You can set the Label to be of the size of the texture inside it like this.
FloatLayout:
Label:
# adding a background to see the amount of space the label takes
canvas.before:
Color:
rgba: .5, .5, .5, .5
Rectangle:
size: self.size
pos: self.pos
text: "How can the only thing constant in the universe be `change` when\nchange itself is by it's very nature `not constant`?"
pos_hint: {'center_x': .5, 'center_y': .5}
size_hint: None, None
size: self.texture_size
However with this you would only get a label that just expands how much text is in it and would require you to add \n yourself to make it wrap. A better approach would be to let the text inside the label auto wrap at a certain width by setting text_size something like the following::
FloatLayout:
ScrollView:
# take half of parents size
size_hint: .5, .5
pos_hint: {'center_x': .5, 'center_y': .5}
Label:
canvas.before:
Color:
rgba: .5, .5, .5, .5
Rectangle:
size: self.size
pos: self.pos
text: "\n1. Two hunters are out in the woods when one of them collapses. He doesn't seem to be breathing and his eyes are glazed. The other guy whips out his phone and calls the emergency services. He gasps, `My friend is dead! What can I do?`\n\n The operator says `Calm down. I can help. First, let's make sure he's dead.`\n\n There is a silence, then a gun shot is heard. Back on the phone, the guy says `OK, now what?`\n\n\n2. Sherlock Holmes and Dr Watson were going camping. They pitched their tent under the stars and went to sleep. Sometime in the middle of the night Holmes woke Watson up and said:\n\n `Watson, look up at the sky, and tell me what you see.`\n\n Watson replied: `I see millions and millions of stars.`\n\n Holmes said: `And what do you deduce from that?`\n\n Watson replied: `Well, if there are millions of stars, and if even a few of those have planets, it’s quite likely there are some planets like Earth out there. And if there are a few planets like Earth out there, there might also be life.`\n\n And Holmes said: `Watson, you idiot, it means that somebody stole our tent.`\n\n\n3. Three women talk about their husband is performance as lovers.\n\nThe first woman says, `My husband is a marriage counselor, so he always buys me flowers and candy before we make love.`\n\nThe second woman says, `My husband is a motorcycle mechanic. He likes to play rough and use leather sometimes.`\n\nThe third woman shakes her head and says, `My husband works for an Internet company. He just sits on the edge of the bed and tells me how great it's going to be when I get it.` \n\n\n4. As within, so outside. Fractals equations show the possibility of having infinity within minutia. Each and every cell can be a image of the whole; merging the micro and the macro into one.\n"
pos_hint: {'center_x': .5, 'center_y': .5}
size_hint: 1, None
text_size: self.width, None
height: self.texture_size[1]
I just got a crash report (at launch), after submitting my app to the Mac App Store, for review :
Application Specific Information:
objc[1832]: garbage collection is ON
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSDictionary initWithObjects:forKeys:]: count of objects (0) differs from count of keys (2)'
terminate called throwing an exception
abort() called
This is the part of code, I'm suspecting :
- (NSMutableDictionary*)getNewChapterWithTitle:(NSString*)title
{
if (title==nil) title = [NSString stringWithFormat:#"Chapter %d",[[self appChapters] count]+1];
// Align Justify
NSMutableParagraphStyle * paragraphStyle = [[NSParagraphStyle defaultParagraphStyle] mutableCopy];
[paragraphStyle setAlignment:NSJustifiedTextAlignment];
// Set Font
NSDictionary *font = [NSDictionary dictionaryWithObjects:[NSArray arrayWithObjects:[NSFont fontWithName:#"Garamond" size:15.0],paragraphStyle, nil] forKeys:[NSArray arrayWithObjects:NSFontAttributeName, NSParagraphStyleAttributeName, nil]];
NSString* lipsum = #"\nLorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc consequat fermentum faucibusPhasellus ac consequat metus. Sed at lectus sit amet tellus vulputate mollis vel suscipit metus. Nulla a sapien purus. Aenean sollicitudin lacus varius nisi faucibus nec lacinia mauris fermentum. Aliquam euismod quam rhoncus ipsum pulvinar quis condimentum magna imperdiet. Nullam augue leo, dictum tincidunt ullamcorper id, porta in lorem. Duis in vestibulum nisl.\
\n\n\
Donec imperdiet dignissim massa, at ultricies enim dignissim at. Etiam pharetra neque quis quam condimentum vitae viverra nisl volutpat. Vivamus urna ante, ultrices ut tincidunt id, auctor id est. Nunc eget diam purus, at viverra orci. Maecenas eu magna mi, id venenatis arcu. Maecenas ornare, tortor sit amet gravida placerat, diam urna lacinia nunc, a dictum arcu libero sed metus. Nulla pulvinar sapien vitae lectus faucibus quis tempus elit volutpat. Integer facilisis interdum lectus, sit amet dapibus enim mattis non. Donec sed pulvinar risus. Mauris in nulla urna, sit amet placerat turpis. Proin felis erat, pretium sed pharetra vel, tincidunt quis tortor. Donec ut nisi dui. Pellentesque gravida gravida justo, quis convallis leo euismod in. Nam pretium accumsan sapien ac interdum.";
NSMutableAttributedString* theLipsum = [[NSMutableAttributedString alloc] initWithString:lipsum attributes:font];
return [[NSMutableDictionary dictionaryWithObjectsAndKeys:
[title retain],#"title",
[theLipsum retain],#"content",
[NSNumber numberWithInt:0],#"isMarkdown",
nil] retain];
}
Do you see anything "obviously" wrong with the above? (It's being called like 4-5 times, from awakeFromNib, so I guess that's the culprit...)
HINT : The retains have been added after the report; I don't know if it's going to help though at all...
[NSFont fontWithName:#"Garamond" size:15.0] probably returns nil. As far as I know it's not a default font on OSX. So your objects array is empty, because only the objects up until the first nil are added.
i think the problem is here - [NSFont fontWithName:#"Garamond" size:15.0]
This code returns nil, so the array is empty.
May be this font is not standard but it is installed on your computer.
if the problem is here, you should add this font to app resources.
// textView is type of UITextView
self.textView.text = #"Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi. Nam liber tempor cum soluta nobis eleifend option congue nihil imperdiet doming id quod mazim placerat facer possim assum. Typi non habent claritatem insitam; est usus legentis in iis qui facit eorum claritatem. Investigationes demonstraverunt lectores legere me lius quod ii legunt saepius. Claritas est etiam processus dynamicus, qui sequitur mutationem consuetudium lectorum. Mirum est notare quam littera gothica, quam nunc putamus parum claram, anteposuerit litterarum formas humanitatis per seacula quarta decima et quinta decima. Eodem modo typi, qui nunc nobis videntur parum clari, fiant sollemnes in futurum.";
CGSize maxSize = {self.textView.contentSize.width, CGFLOAT_MAX};
CGSize computedSize = [self.textView.text sizeWithFont:self.textView.font
constrainedToSize:maxSize
lineBreakMode:UILineBreakModeWordWrap];
NSLog(#"Computed size - width:%f height:%f\nContent size - width:%f height:%f", computedSize.width, computedSize.height, self.textView.contentSize.width, self.textView.contentSize.height);
Console output:
Computed size - width:320.000000 height:450.000000
Content size - width:320.000000 height:484.000000
Why are not these values equal? At least heights.
What is the .bounds.size of the text view? If all text fits within the text view the content size can still be reported as the views full size.
The UITextView is implemented using an internal web view, with allot of private magic. It is generally not a good idea to trust the text view with anything apart from displaying and editing text. The internal measurements and calculations has, and will continues to, change between OS updates.
If what you want is to change the size of the UITextView to fit all text then you must let the text view itself do this calculation. For example:
CGRect frame = textView.frame;
frame.size.height = [textView sizeThatFits:CGSizeMake(frame.size.width, CGFLOAT_MAX)];
textView.frame = frame;
In html, you can do something like this
<p>
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Praesent eget
aliquet odio. Fusce id quam eu augue sollicitudin imperdiet eu ac eros.
<em>Etiam nec nisi lorem</em>, ac venenatis ipsum. In sollicitudin,
lectus eget varius tincidunt, felis sapien porta eros, non
pellentesque dui quam vitae tellus.
</p>
It is nice, because the paragraph of text still looks like a paragraph in the markup. In haml, it looks like this
%p
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Praesent eget
aliquet odio. Fusce id quam eu augue sollicitudin imperdiet eu ac eros.
%em Etiam nec nisi lorem
, ac venenatis ipsum. In sollicitudin,
lectus eget varius tincidunt, felis sapien porta eros, non
pellentesque dui quam vitae tellus.
Is there any way to totally inline a tag in haml?
Haml excels for structural markup, but it's not really intended for inline markup. Read: Haml Sucks for Content. Just put your inline tags as HTML:
.content
%p
Lorem ipsum <em>dolor</em> sit amet.
Or else use a filter:
.content
:markdown
Lorem ipsum *dolor* sit amet.
I know this is old. But figured I'd post this in case anyone lands here. You can also do this sort of thing in haml (And maybe more what the OP was looking for?).
%p Here is some text I want to #{content_tag(:em, "emphasize!")}, and here the word #{content_tag(:strong, "BOLD")} is in bold. and #{link_to("click here", "url")} for a link.
Useful for those situations where doing it on multiple lines adds spaces you don't want
I.E. When you have a link at the end of a sentence, and don't want that stupid space between the link and the period. (or like in the OP's example, there would be a space between the and the comma.
Just don't get carried away like i did in the example :)
You can inline HTML in any HAML doing
%p!= "Lorem ipsum <em>dolor</em> sit amet"
The != operator means that whatever the right side returns it will be outputted.
As a hybrid of these nice answers by others, I think you can define a Helper method in your application_helper.rb for some inline markups you'd frequently use. You don't need to mix HTML with HAML, nor do you have to type much.
In your helper;
def em(text)
content_tag(:em, text)
end
#def em(text)
# "<em>#{text}</em>".html_safe
#end
In your haml;
%p
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Praesent eget
aliquet odio. Fusce id quam eu augue sollicitudin imperdiet eu ac eros.
#{em 'Etiam nec nisi lorem'}, ac venenatis ipsum. In sollicitudin,
lectus eget varius tincidunt, felis sapien porta eros, non
pellentesque dui quam vitae tellus.
It's all about indentation:
%p
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Praesent eget aliquet odio. Fusce id quam eu augue sollicitudin imperdiet eu ac eros.
%em
Etiam nec nisi lorem, ac venenatis ipsum. In sollicitudin, lectus eget varius tincidunt, felis sapien porta eros, non pellentesque dui quam vitae tellus.